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Lehigh River Allentown 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Lehigh River Allentown

Pennsylvania, United States Of America

Long range weather outlook for Lehigh River Allentown includes 14 day forecast summary:

The forecast for Lehigh River Allentown in the coming two weeks is predicting the average daytime maximum temperature will be around 25°C, with a high for the two weeks of 28°C expected on the afternoon of Thursday 23rd. The mean minimum temperature will be 12°C, dipping to its lowest on the morning of Saturday 25th at 8°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. The current forecast indicates Saturday 18th will have the most precipitation with an accumulation of around 6.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityCloud AmountPrecip AmountWeather
Fri 17
May		04:00

NNE
NNE

 4 / 7 mph 54 / 53°F 93%
Low level cloud: 20%
Mid level cloud: 18%
High level cloud: 1%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 6 / 7 mph 60 / 57°F 87%
Low level cloud: 23%
Mid level cloud: 11%
High level cloud: 100%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 7 / 8 mph 67 / 66°F 72%
Low level cloud: 92%
Mid level cloud: 7%
High level cloud: 90%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SE
SE

 5 / 6 mph 69 / 68°F 71%
Low level cloud: 81%
Mid level cloud: 11%
High level cloud: 16%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 5 / 5 mph 69 / 68°F 73%
Low level cloud: 69%
Mid level cloud: 16%
High level cloud: 6%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 4 / 7 mph 65 / 62°F 82%
Low level cloud: 42%
Mid level cloud: 15%
High level cloud: 18%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

 4 / 8 mph 59 / 59°F 84%
Low level cloud: 19%
Mid level cloud: 87%
High level cloud: 52%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May		01:00

SE
SE

 3 / 5 mph 57 / 57°F 87%
Low level cloud: 6%
Mid level cloud: 56%
High level cloud: 100%
Most Significant Cloud Type: medium
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

 3 / 4 mph 55 / 56°F 91%
Low level cloud: 37%
Mid level cloud: 81%
High level cloud: 43%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 2 / 3 mph 55 / 56°F 97%
Low level cloud: 66%
Mid level cloud: 90%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
10:00

ESE
ESE

 3 / 3 mph 57 / 58°F 96%
Low level cloud: 82%
Mid level cloud: 80%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

ENE
ENE

 3 / 3 mph 60 / 60°F 95%
Low level cloud: 84%
Mid level cloud: 94%
High level cloud: 36%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ENE
ENE

 2 / 2 mph 61 / 60°F 96%
Low level cloud: 71%
Mid level cloud: 58%
High level cloud: 2%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

N
N

 1 / 1 mph 61 / 59°F 96%
Low level cloud: 45%
Mid level cloud: 91%
High level cloud: 0%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

 3 / 4 mph 58 / 58°F 96%
Low level cloud: 34%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May		01:00

NNE
NNE

 3 / 6 mph 51 / 51°F 97%
Low level cloud: 41%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 3 / 5 mph 49 / 49°F 97%
Low level cloud: 59%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 3 / 3 mph 59 / 58°F 92%
Low level cloud: 55%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

 2 / 3 mph 68 / 67°F 74%
Low level cloud: 88%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 1 / 1 mph 73 / 69°F 69%
Low level cloud: 66%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 2 / 3 mph 76 / 77°F 63%
Low level cloud: 5%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 4 / 8 mph 65 / 63°F 85%
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 4 / 8 mph 58 / 58°F 93%
Low level cloud: 9%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		01:00

SE
SE

 2 / 5 mph 53 / 54°F 96%
Low level cloud: 38%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSE
SSE

 2 / 5 mph 51 / 51°F 97%
Low level cloud: 72%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 2 / 3 mph 60 / 60°F 90%
Low level cloud: 84%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 4 / 4 mph 68 / 66°F 80%
Low level cloud: 90%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 5 / 6 mph 76 / 76°F 73%
Low level cloud: 54%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 6 / 6 mph 77 / 77°F 70%
Low level cloud: 13%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 4 / 8 mph 68 / 65°F 89%
Low level cloud: 2%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: medium
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 3 / 6 mph 61 / 61°F 94%
Low level cloud: 4%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May		01:00

S
S

 4 / 8 mph 56 / 56°F 97%
Low level cloud: 46%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 3 / 6 mph 54 / 54°F 98%
Low level cloud: 60%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 4 / 5 mph 65 / 62°F 90%
Low level cloud: 47%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

 6 / 8 mph 76 / 76°F 73%
Low level cloud: 37%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

 7 / 8 mph 81 / 81°F 63%
Low level cloud: 16%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 8 / 9 mph 82 / 82°F 65%
Low level cloud: 49%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

 6 / 8 mph 77 / 78°F 86%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 5 / 8 mph 64 / 64°F 94%
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		01:00

SW
SW

 4 / 9 mph 57 / 57°F 95%
Low level cloud: 11%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 3 / 7 mph 55 / 55°F 95%
Low level cloud: 18%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 6 / 7 mph 66 / 64°F 85%
Low level cloud: 9%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 8 / 9 mph 75 / 77°F 67%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

 9 / 11 mph 81 / 82°F 61%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 9 / 11 mph 82 / 83°F 65%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

 5 / 11 mph 72 / 69°F 83%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 97%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 5 / 10 mph 64 / 64°F 94%
Low level cloud: 17%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
44%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Thu 23
May		01:00

SSW
SSW

 5 / 10 mph 62 / 62°F 95%
Low level cloud: 2%
Mid level cloud: 9%
High level cloud: 15%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 4 / 8 mph 60 / 60°F 97%
Low level cloud: 18%
Mid level cloud: 10%
High level cloud: 3%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 7 / 9 mph 69 / 66°F 92%
Low level cloud: 43%
Mid level cloud: 16%
High level cloud: 32%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

 11 / 13 mph 77 / 80°F 78%
Low level cloud: 77%
Mid level cloud: 5%
High level cloud: 3%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 13 / 15 mph 83 / 85°F 73%
Low level cloud: 25%
Mid level cloud: 30%
High level cloud: 69%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 10 / 15 mph 79 / 81°F 83%
Low level cloud: 3%
Mid level cloud: 18%
High level cloud: 11%
Most Significant Cloud Type: medium
27%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

WSW
WSW

 11 / 21 mph 73 / 76°F 79%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 98%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

 11 / 17 mph 69 / 69°F 74%
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityCloud AmountPrecip AmountWeather
Fri 24
May		01:00

NNW
NNW

 6 / 14 mph 56 / 55°F 69%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 81%
Most Significant Cloud Type: high
80%
0.0 In
07:00

WNW
WNW

 10 / 14 mph 63 / 63°F 85%
Low level cloud: 1%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
13:00

SW
SW

 6 / 9 mph 85 / 87°F 49%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
19:00

WSW
WSW

 4 / 7 mph 74 / 77°F 75%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Sat 25
May		01:00

NNE
NNE

 4 / 9 mph 60 / 60°F 91%
Low level cloud: 15%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
17%
0.0 In
07:00

WNW
WNW

 9 / 16 mph 56 / 54°F 68%
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

ESE
ESE

 7 / 15 mph 66 / 66°F 73%
Low level cloud: 73%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
73%
0.0 In
19:00

S
S

 5 / 9 mph 66 / 66°F 77%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 5%
Most Significant Cloud Type: medium
6%
0.0 In
Sun 26
May		01:00

ESE
ESE

 5 / 10 mph 51 / 49°F 96%
Low level cloud: 31%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.0 In
07:00

SE
SE

 5 / 9 mph 62 / 62°F 97%
Low level cloud: 44%
Mid level cloud: 45%
High level cloud: 33%
Most Significant Cloud Type: low
64%
0.1 In
13:00

S
S

 9 / 19 mph 66 / 66°F 90%
Low level cloud: 37%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
64%
0.1 In
19:00

SW
SW

 4 / 9 mph 74 / 78°F 90%
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 3%
Most Significant Cloud Type: medium
20%
0.1 In
Mon 27
May		01:00

S
S

 2 / 5 mph 62 / 62°F 98%
Low level cloud: 72%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: low
76%
0.0 In
07:00

SSW
SSW

 8 / 17 mph 70 / 70°F 95%
Low level cloud: 94%
Mid level cloud: 16%
High level cloud: 72%
Most Significant Cloud Type: low
100%
0.2 In
13:00

SW
SW

 4 / 9 mph 85 / 90°F 60%
Low level cloud: 2%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
19:00

WSW
WSW

 4 / 8 mph 71 / 71°F 93%
Low level cloud: 1%
Mid level cloud: 55%
High level cloud: 100%
Most Significant Cloud Type: medium
60%
0.2 In
Tue 28
May		01:00

NW
NW

 4 / 8 mph 67 / 67°F 96%
Low level cloud: 67%
Mid level cloud: 50%
High level cloud: 32%
Most Significant Cloud Type: low
88%
1.0 In
07:00

SSW
SSW

 4 / 8 mph 71 / 71°F 95%
Low level cloud: 72%
Mid level cloud: 41%
High level cloud: 100%
Most Significant Cloud Type: low
98%
0.6 In
13:00

N
N

 5 / 11 mph 69 / 69°F 88%
Low level cloud: 84%
Mid level cloud: 60%
High level cloud: 98%
Most Significant Cloud Type: low
100%
0.0 In
19:00

N
N

 11 / 23 mph 62 / 62°F 95%
Low level cloud: 96%
Mid level cloud: 46%
High level cloud: 20%
Most Significant Cloud Type: low
100%
1.3 In
Wed 29
May		01:00

ENE
ENE

 6 / 14 mph 61 / 62°F 96%
Low level cloud: 96%
Mid level cloud: 25%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
07:00

NNE
NNE

 6 / 14 mph 63 / 63°F 86%
Low level cloud: 93%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
13:00

E
E

 9 / 19 mph 64 / 64°F 96%
Low level cloud: 95%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
19:00

SSE
SSE

 3 / 6 mph 69 / 69°F 81%
Low level cloud: 1%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
34%
0.0 In
Thu 30
May		01:00

ESE
ESE

 1 / 1 mph 60 / 60°F 97%
Low level cloud: 93%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
07:00

E
E

 3 / 6 mph 63 / 63°F 94%
Low level cloud: 80%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
88%
0.0 In
13:00

SW
SW

 9 / 18 mph 74 / 77°F 65%
Low level cloud: 25%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.0 In
19:00

SE
SE

 10 / 21 mph 64 / 64°F 79%
Low level cloud: 5%
Mid level cloud: 14%
High level cloud: 59%
Most Significant Cloud Type: medium
31%
0.1 In
Fri 31
May		01:00

W
W

 2 / 5 mph 64 / 64°F 92%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.1 In
07:00

E
E

 8 / 17 mph 56 / 54°F 98%
Low level cloud: 100%
Mid level cloud: 96%
High level cloud: 2%
Most Significant Cloud Type: low
100%
0.4 In
13:00

SW
SW

 5 / 10 mph 79 / 81°F 59%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
19:00

SW
SW

 6 / 12 mph 64 / 64°F 93%
Low level cloud: 20%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
35%
0.1 In
Sat 01
Jun		01:00

SE
SE

 4 / 9 mph 66 / 66°F 96%
Low level cloud: 30%
Mid level cloud: 82%
High level cloud: 64%
Most Significant Cloud Type: low
66%
0.1 In
07:00

WSW
WSW

 14 / 29 mph 57 / 54°F 87%
Low level cloud: 74%
Mid level cloud: 46%
High level cloud: 12%
Most Significant Cloud Type: low
91%
0.0 In
13:00

S
S

 7 / 15 mph 69 / 69°F 98%
Low level cloud: 98%
Mid level cloud: 72%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.2 In
19:00

WNW
WNW

 5 / 11 mph 60 / 60°F 77%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 7%
Most Significant Cloud Type: medium
5%
0.0 In

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure