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Birdsboro 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Birdsboro

Pennsylvania, United States Of America

Long range weather outlook for Birdsboro includes 14 day forecast summary:

Over the next 14 days the Birdsboro forecast suggests the average daytime maximum temperature will be around 23°C, with a high for the two weeks of 28°C expected on the afternoon of Wednesday 22nd. The mean minimum temperature will be 11°C, dipping to its lowest on the morning of Saturday 25th at 5°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. The indicators are that Thursday 23rd will have the most precipitation with an accumulation of around 12.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 17
May		01:00

NNE
NNE

 3 / 5 mph 60 / 60°F 89% 1012 mb
Low level cloud: 61%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 3 / 6 mph 58 / 58°F 91% 1013 mb
Low level cloud: 57%
Mid level cloud: 25%
High level cloud: 6%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 6 / 7 mph 63 / 60°F 84% 1015 mb
Low level cloud: 14%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 7 / 8 mph 66 / 66°F 73% 1015 mb
Low level cloud: 99%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ESE
ESE

 6 / 6 mph 68 / 68°F 73% 1014 mb
Low level cloud: 83%
Mid level cloud: 20%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 6 / 7 mph 71 / 69°F 71% 1014 mb
Low level cloud: 67%
Mid level cloud: 16%
High level cloud: 67%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 5 / 9 mph 64 / 62°F 83% 1014 mb
Low level cloud: 76%
Mid level cloud: 16%
High level cloud: 21%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

 5 / 8 mph 60 / 60°F 88% 1014 mb
Low level cloud: 6%
Mid level cloud: 55%
High level cloud: 12%
Most Significant Cloud Type: medium
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May		16:00

NNE
NNE

 2 / 2 mph 61 / 60°F 90% 1016 mb
Low level cloud: 87%
Mid level cloud: 69%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

N
N

 2 / 2 mph 61 / 59°F 94% 1016 mb
Low level cloud: 62%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 2 / 4 mph 57 / 58°F 97% 1016 mb
Low level cloud: 73%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May		01:00

NNW
NNW

 3 / 6 mph 52 / 52°F 97% 1016 mb
Low level cloud: 63%
Mid level cloud: 24%
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

N
N

 2 / 5 mph 52 / 52°F 97% 1016 mb
Low level cloud: 87%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 3 / 3 mph 61 / 59°F 91% 1017 mb
Low level cloud: 71%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

 5 / 6 mph 70 / 68°F 70% 1017 mb
Low level cloud: 70%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

N
N

 4 / 4 mph 71 / 70°F 67% 1016 mb
Low level cloud: 94%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NW
NW

 1 / 1 mph 74 / 76°F 71% 1015 mb
Low level cloud: 34%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

 4 / 9 mph 65 / 62°F 85% 1015 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

 3 / 7 mph 58 / 58°F 93% 1017 mb
Low level cloud: 4%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		01:00

SSE
SSE

 3 / 6 mph 53 / 53°F 96% 1017 mb
Low level cloud: 29%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ESE
ESE

 1 / 3 mph 51 / 51°F 96% 1018 mb
Low level cloud: 36%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 2 / 2 mph 63 / 60°F 88% 1019 mb
Low level cloud: 31%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 2 / 2 mph 74 / 76°F 70% 1018 mb
Low level cloud: 64%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ENE
ENE

 4 / 4 mph 77 / 77°F 65% 1017 mb
Low level cloud: 38%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 0 / 1 mph 79 / 78°F 63% 1016 mb
Low level cloud: 28%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

 3 / 6 mph 67 / 65°F 83% 1016 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 5 / 9 mph 59 / 59°F 95% 1017 mb
Low level cloud: 5%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May		01:00

SSW
SSW

 3 / 6 mph 54 / 54°F 95% 1017 mb
Low level cloud: 16%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 3 / 6 mph 52 / 51°F 96% 1017 mb
Low level cloud: 20%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 2 / 3 mph 65 / 62°F 86% 1017 mb
Low level cloud: 22%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

 5 / 6 mph 76 / 76°F 69% 1017 mb
Low level cloud: 27%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

 6 / 8 mph 81 / 80°F 59% 1015 mb
Low level cloud: 1%
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
16:00

SW
SW

 8 / 9 mph 81 / 80°F 63% 1014 mb
Low level cloud: 16%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

 6 / 11 mph 71 / 68°F 85% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 5 / 10 mph 59 / 59°F 94% 1015 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 81%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		01:00

SSW
SSW

 4 / 8 mph 57 / 57°F 96% 1015 mb
Low level cloud: 8%
Mid level cloud: 10%
High level cloud: 95%
Most Significant Cloud Type: medium
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

 3 / 7 mph 55 / 55°F 96% 1015 mb
Low level cloud: 13%
Mid level cloud: 6%
High level cloud: 18%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 6 / 7 mph 68 / 65°F 84% 1015 mb
Low level cloud: 8%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 9 / 11 mph 78 / 79°F 69% 1014 mb
Low level cloud: 12%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

 12 / 13 mph 83 / 84°F 63% 1013 mb
Low level cloud: 13%
Mid level cloud: 7%
High level cloud: 13%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 11 / 12 mph 83 / 85°F 68% 1012 mb
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
19:00

SSW
SSW

 7 / 14 mph 75 / 76°F 81% 1012 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 99%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

N
N

 0 / 1 mph 67 / 67°F 97% 1012 mb
Low level cloud: 22%
Mid level cloud: 45%
High level cloud: 33%
Most Significant Cloud Type: low
41%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Thu 23
May		01:00

S
S

 6 / 13 mph 63 / 63°F 96% 1010 mb
Low level cloud: 17%
Mid level cloud: 30%
High level cloud: 32%
Most Significant Cloud Type: low
31%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

S
S

 5 / 10 mph 62 / 62°F 98% 1009 mb
Low level cloud: 61%
Mid level cloud: 22%
High level cloud: 9%
Most Significant Cloud Type: low
69%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

SW
SW

 9 / 11 mph 70 / 68°F 96% 1009 mb
Low level cloud: 69%
Mid level cloud: 45%
High level cloud: 72%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

 11 / 13 mph 81 / 82°F 74% 1008 mb
Low level cloud: 27%
Mid level cloud: 18%
High level cloud: 80%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 12 / 14 mph 83 / 85°F 71% 1006 mb
Low level cloud: 5%
Mid level cloud: 30%
High level cloud: 58%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 10 / 16 mph 73 / 76°F 93% 1006 mb
Low level cloud: 5%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: medium
44%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
19:00

WNW
WNW

 14 / 25 mph 66 / 65°F 78% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

 15 / 21 mph 59 / 59°F 68% 1011 mb
Low level cloud: 8%
Mid level cloud: 0%
High level cloud: 82%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 24
May		01:00

NNW
NNW

 6 / 14 mph 55 / 53°F 72% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 97%
Most Significant Cloud Type: high
97%
0.0 In
07:00

W
W

 9 / 13 mph 63 / 63°F 88% 1012 mb
Low level cloud: 3%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
13:00

SW
SW

 7 / 11 mph 84 / 85°F 50% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
19:00

SSW
SSW

 4 / 9 mph 71 / 71°F 78% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
0.0 In
Sat 25
May		01:00

NE
NE

 4 / 7 mph 58 / 58°F 94% 1016 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
0.0 In
07:00

NW
NW

 10 / 18 mph 55 / 52°F 68% 1015 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
13:00

NW
NW

 9 / 17 mph 70 / 70°F 49% 1016 mb
Low level cloud: 5%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
19:00

NNW
NNW

 2 / 5 mph 62 / 62°F 66% 1022 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Sun 26
May		01:00

NE
NE

 2 / 4 mph 55 / 57°F 73% 1020 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 34%
Most Significant Cloud Type: medium
11%
0.0 In
07:00

S
S

 1 / 2 mph 62 / 62°F 67% 1026 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 14%
Most Significant Cloud Type: medium
7%
0.0 In
13:00

SSE
SSE

 4 / 7 mph 57 / 57°F 86% 1022 mb
Low level cloud: 58%
Mid level cloud: 43%
High level cloud: 50%
Most Significant Cloud Type: low
78%
0.0 In
19:00

S
S

 4 / 9 mph 64 / 64°F 74% 1022 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 98%
Most Significant Cloud Type: medium
6%
0.0 In
Mon 27
May		01:00

ESE
ESE

 4 / 7 mph 57 / 57°F 95% 1018 mb
Low level cloud: 100%
Mid level cloud: 25%
High level cloud: 79%
Most Significant Cloud Type: low
100%
0.0 In
07:00

SSW
SSW

 3 / 6 mph 62 / 62°F 91% 1018 mb
Low level cloud: 10%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: medium
75%
0.0 In
13:00

SW
SW

 13 / 24 mph 81 / 86°F 71% 1013 mb
Low level cloud: 48%
Mid level cloud: 46%
High level cloud: 11%
Most Significant Cloud Type: low
64%
0.0 In
19:00

SSW
SSW

 3 / 7 mph 73 / 77°F 89% 1012 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 28%
Most Significant Cloud Type: medium
29%
0.2 In
Tue 28
May		01:00

WSW
WSW

 8 / 16 mph 65 / 65°F 95% 1013 mb
Low level cloud: 19%
Mid level cloud: 23%
High level cloud: 13%
Most Significant Cloud Type: low
28%
0.4 In
07:00

NW
NW

 9 / 19 mph 68 / 68°F 93% 1012 mb
Low level cloud: 28%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.1 In
13:00

WNW
WNW

 5 / 11 mph 70 / 70°F 93% 1013 mb
Low level cloud: 90%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
19:00

WSW
WSW

 6 / 12 mph 72 / 76°F 80% 1011 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 96%
Most Significant Cloud Type: medium
18%
0.0 In
Wed 29
May		01:00

NNW
NNW

 4 / 9 mph 57 / 56°F 90% 1018 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 54%
Most Significant Cloud Type: medium
3%
0.1 In
07:00

ENE
ENE

 4 / 8 mph 63 / 63°F 86% 1014 mb
Low level cloud: 66%
Mid level cloud: 46%
High level cloud: 68%
Most Significant Cloud Type: low
90%
0.0 In
13:00

NE
NE

 4 / 8 mph 74 / 77°F 49% 1017 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
19:00

S
S

 2 / 4 mph 67 / 67°F 94% 1012 mb
Low level cloud: 20%
Mid level cloud: 44%
High level cloud: 97%
Most Significant Cloud Type: low
47%
0.0 In
Thu 30
May		01:00

NNE
NNE

 2 / 3 mph 57 / 57°F 81% 1018 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 38%
Most Significant Cloud Type: medium
27%
0.0 In
07:00

ENE
ENE

 1 / 2 mph 68 / 69°F 89% 1012 mb
Low level cloud: 78%
Mid level cloud: 44%
High level cloud: 5%
Most Significant Cloud Type: low
93%
0.0 In
13:00

NW
NW

 2 / 5 mph 65 / 65°F 86% 1018 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 12%
Most Significant Cloud Type: medium
28%
0.0 In
19:00

SSW
SSW

 8 / 17 mph 64 / 64°F 95% 1010 mb
Low level cloud: 17%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: medium
99%
0.4 In
Fri 31
May		01:00

W
W

 4 / 7 mph 55 / 55°F 96% 1017 mb
Low level cloud: 8%
Mid level cloud: 28%
High level cloud: 89%
Most Significant Cloud Type: medium
53%
0.0 In
07:00

WSW
WSW

 3 / 6 mph 69 / 69°F 90% 1010 mb
Low level cloud: 28%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.7 In
13:00

ENE
ENE

 7 / 15 mph 62 / 62°F 97% 1019 mb
Low level cloud: 72%
Mid level cloud: 52%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.3 In
19:00

W
W

 7 / 15 mph 63 / 63°F 85% 1010 mb
Low level cloud: 5%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
60%
0.0 In
Sat 01
Jun		01:00

NNW
NNW

 6 / 13 mph 56 / 55°F 92% 1020 mb
Low level cloud: 1%
Mid level cloud: 30%
High level cloud: 21%
Most Significant Cloud Type: medium
34%
0.6 In
07:00

W
W

 10 / 21 mph 56 / 53°F 87% 1012 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.1 In
13:00

NNE
NNE

 13 / 27 mph 59 / 56°F 79% 1023 mb
Low level cloud: 80%
Mid level cloud: 50%
High level cloud: 2%
Most Significant Cloud Type: low
97%
0.0 In
19:00

WNW
WNW

 5 / 11 mph 60 / 60°F 77% 1013 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 11%
Most Significant Cloud Type: medium
23%
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