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Mountville 14 Day Long Range Forecast

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

Pennsylvania, United States Of America

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

Over the next 14 days the Mountville forecast suggests the average daytime maximum temperature will be around 22°C, with a high for the two weeks of 28°C expected on the afternoon of Wednesday 22nd. The average minimum temperature will be 12°C, dipping to its lowest on the morning of Saturday 25th at 5°C. The next 14 days will 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 11.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 17
May
13:00

ESE
ESE

7 / 9 mph 67 / 67°F 71% 1014 mb
Low level cloud: 83%
Mid level cloud: 12%
High level cloud: 83%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

7 / 9 mph 70 / 67°F 75% 1014 mb
Low level cloud: 45%
Mid level cloud: 13%
High level cloud: 99%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

6 / 7 mph 66 / 66°F 87% 1014 mb
Low level cloud: 75%
Mid level cloud: 64%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

7 / 9 mph 64 / 64°F 88% 1014 mb
Low level cloud: 96%
Mid level cloud: 43%
High level cloud: 84%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May
01:00

SSE
SSE

6 / 13 mph 55 / 54°F 88% 1014 mb
Low level cloud: 83%
Mid level cloud: 72%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

4 / 9 mph 54 / 53°F 97% 1014 mb
Low level cloud: 87%
Mid level cloud: 96%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

SE
SE

5 / 9 mph 53 / 52°F 97% 1016 mb
Low level cloud: 100%
Mid level cloud: 87%
High level cloud: 39%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
10:00

SE
SE

5 / 6 mph 57 / 56°F 95% 1017 mb
Low level cloud: 100%
Mid level cloud: 98%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

ESE
ESE

3 / 4 mph 60 / 60°F 94% 1016 mb
Low level cloud: 93%
Mid level cloud: 64%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
16:00

E
E

2 / 2 mph 61 / 60°F 94% 1016 mb
Low level cloud: 91%
Mid level cloud: 73%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

2 / 2 mph 61 / 59°F 95% 1016 mb
Low level cloud: 60%
Mid level cloud: 46%
High level cloud: 7%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

N
N

1 / 2 mph 57 / 57°F 96% 1016 mb
Low level cloud: 56%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May
01:00

N
N

2 / 4 mph 53 / 54°F 96% 1016 mb
Low level cloud: 47%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

N
N

1 / 3 mph 51 / 51°F 96% 1016 mb
Low level cloud: 69%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

3 / 4 mph 58 / 58°F 91% 1017 mb
Low level cloud: 81%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

5 / 6 mph 65 / 65°F 78% 1017 mb
Low level cloud: 93%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

N
N

5 / 6 mph 69 / 68°F 73% 1016 mb
Low level cloud: 84%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NE
NE

3 / 4 mph 73 / 69°F 72% 1015 mb
Low level cloud: 67%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

N
N

2 / 4 mph 66 / 65°F 82% 1015 mb
Low level cloud: 9%
Mid level cloud: 74%
High level cloud: 0%
Most Significant Cloud Type: medium
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

4 / 8 mph 60 / 60°F 90% 1016 mb
Low level cloud: 1%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May
01:00

ESE
ESE

5 / 9 mph 56 / 55°F 96% 1017 mb
Low level cloud: 27%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

3 / 6 mph 53 / 53°F 96% 1017 mb
Low level cloud: 30%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSE
SSE

1 / 1 mph 60 / 58°F 88% 1019 mb
Low level cloud: 46%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

2 / 2 mph 69 / 68°F 74% 1018 mb
Low level cloud: 93%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

3 / 4 mph 75 / 76°F 67% 1017 mb
Low level cloud: 64%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

3 / 3 mph 75 / 76°F 71% 1016 mb
Low level cloud: 61%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

3 / 5 mph 71 / 68°F 84% 1016 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

6 / 9 mph 63 / 63°F 93% 1016 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
01:00

SSW
SSW

3 / 6 mph 56 / 56°F 96% 1017 mb
Low level cloud: 24%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

4 / 8 mph 54 / 54°F 96% 1016 mb
Low level cloud: 23%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

4 / 5 mph 64 / 61°F 88% 1017 mb
Low level cloud: 26%
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
10:00

SSW
SSW

6 / 7 mph 74 / 76°F 72% 1017 mb
Low level cloud: 34%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

7 / 9 mph 78 / 78°F 61% 1015 mb
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

7 / 10 mph 80 / 79°F 61% 1014 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
19:00

S
S

8 / 13 mph 71 / 69°F 84% 1014 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 8%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

6 / 13 mph 62 / 62°F 86% 1015 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 98%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May
01:00

S
S

6 / 11 mph 60 / 60°F 91% 1014 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 90%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSE
SSE

5 / 11 mph 58 / 57°F 95% 1014 mb
Low level cloud: 6%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

7 / 10 mph 66 / 64°F 84% 1015 mb
Low level cloud: 8%
Mid level cloud: 8%
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

10 / 11 mph 77 / 78°F 71% 1014 mb
Low level cloud: 10%
Mid level cloud: 7%
High level cloud: 8%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

13 / 15 mph 82 / 84°F 62% 1012 mb
Low level cloud: 2%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

12 / 15 mph 81 / 84°F 72% 1011 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 43%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

8 / 16 mph 73 / 76°F 84% 1011 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 43%
Most Significant Cloud Type: medium
22%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
22:00

SE
SE

4 / 7 mph 66 / 66°F 94% 1012 mb
Low level cloud: 6%
Mid level cloud: 46%
High level cloud: 52%
Most Significant Cloud Type: medium
64%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Thu 23
May
01:00

SSE
SSE

8 / 15 mph 63 / 63°F 97% 1010 mb
Low level cloud: 20%
Mid level cloud: 15%
High level cloud: 10%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

7 / 13 mph 63 / 64°F 97% 1009 mb
Low level cloud: 55%
Mid level cloud: 46%
High level cloud: 18%
Most Significant Cloud Type: low
73%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

SSW
SSW

7 / 11 mph 71 / 68°F 94% 1009 mb
Low level cloud: 55%
Mid level cloud: 21%
High level cloud: 32%
Most Significant Cloud Type: low
66%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
10:00

SW
SW

12 / 15 mph 79 / 80°F 74% 1008 mb
Low level cloud: 5%
Mid level cloud: 20%
High level cloud: 17%
Most Significant Cloud Type: medium
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

12 / 17 mph 81 / 82°F 74% 1006 mb
Low level cloud: 26%
Mid level cloud: 27%
High level cloud: 99%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

16 / 27 mph 74 / 76°F 85% 1007 mb
Low level cloud: 14%
Mid level cloud: 29%
High level cloud: 100%
Most Significant Cloud Type: low
35%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
19:00

WNW
WNW

15 / 24 mph 65 / 64°F 78% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

15 / 24 mph 57 / 54°F 69% 1012 mb
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: low
8%
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

8 / 17 mph 58 / 56°F 70% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
07:00

WNW
WNW

11 / 15 mph 62 / 62°F 80% 1012 mb
Low level cloud: 1%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
0.0 In
13:00

SSW
SSW

7 / 13 mph 83 / 84°F 52% 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

SSE
SSE

5 / 10 mph 72 / 76°F 74% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 28%
Most Significant Cloud Type: high
27%
0.0 In
Sat 25
May
01:00

NE
NE

4 / 7 mph 65 / 65°F 94% 1016 mb
Low level cloud: 8%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.0 In
07:00

WNW
WNW

12 / 25 mph 53 / 49°F 74% 1016 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
13:00

NNW
NNW

10 / 19 mph 67 / 67°F 55% 1017 mb
Low level cloud: 45%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
45%
0.0 In
19:00

W
W

4 / 8 mph 70 / 71°F 66% 1022 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 2%
Most Significant Cloud Type: medium
4%
0.0 In
Sun 26
May
01:00

E
E

5 / 9 mph 60 / 60°F 66% 1019 mb
Low level cloud: 0%
Mid level cloud: 81%
High level cloud: 4%
Most Significant Cloud Type: medium
81%
0.0 In
07:00

S
S

2 / 5 mph 62 / 62°F 69% 1026 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 9%
Most Significant Cloud Type: medium
14%
0.0 In
13:00

SSE
SSE

7 / 13 mph 61 / 61°F 72% 1022 mb
Low level cloud: 98%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
19:00

SSE
SSE

7 / 15 mph 65 / 65°F 75% 1022 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 59%
Most Significant Cloud Type: medium
10%
0.0 In
Mon 27
May
01:00

ESE
ESE

5 / 9 mph 60 / 60°F 97% 1017 mb
Low level cloud: 98%
Mid level cloud: 45%
High level cloud: 29%
Most Significant Cloud Type: low
100%
0.1 In
07:00

SSW
SSW

6 / 13 mph 65 / 65°F 91% 1018 mb
Low level cloud: 28%
Mid level cloud: 30%
High level cloud: 10%
Most Significant Cloud Type: low
39%
0.0 In
13:00

WSW
WSW

13 / 27 mph 81 / 85°F 68% 1013 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 20%
Most Significant Cloud Type: low
41%
0.0 In
19:00

SW
SW

9 / 18 mph 72 / 72°F 89% 1012 mb
Low level cloud: 23%
Mid level cloud: 57%
High level cloud: 26%
Most Significant Cloud Type: low
45%
0.2 In
Tue 28
May
01:00

SW
SW

6 / 12 mph 69 / 69°F 95% 1013 mb
Low level cloud: 14%
Mid level cloud: 20%
High level cloud: 18%
Most Significant Cloud Type: low
22%
0.2 In
07:00

NW
NW

11 / 23 mph 66 / 66°F 92% 1013 mb
Low level cloud: 37%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.3 In
13:00

WNW
WNW

5 / 10 mph 69 / 69°F 94% 1013 mb
Low level cloud: 65%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: low
97%
0.2 In
19:00

SSW
SSW

4 / 9 mph 77 / 81°F 78% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
0.0 In
Wed 29
May
01:00

N
N

4 / 9 mph 62 / 62°F 89% 1018 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 39%
Most Significant Cloud Type: medium
11%
0.1 In
07:00

ENE
ENE

6 / 14 mph 63 / 63°F 89% 1014 mb
Low level cloud: 94%
Mid level cloud: 45%
High level cloud: 22%
Most Significant Cloud Type: low
100%
0.0 In
13:00

NE
NE

4 / 9 mph 72 / 76°F 53% 1018 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
0.0 In
19:00

SSE
SSE

2 / 5 mph 67 / 67°F 96% 1012 mb
Low level cloud: 42%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: low
69%
0.0 In
Thu 30
May
01:00

S
S

0 / 1 mph 61 / 61°F 76% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 98%
Most Significant Cloud Type: medium
50%
0.0 In
07:00

NW
NW

2 / 3 mph 67 / 67°F 91% 1012 mb
Low level cloud: 55%
Mid level cloud: 31%
High level cloud: 13%
Most Significant Cloud Type: low
67%
0.0 In
13:00

NW
NW

2 / 5 mph 61 / 62°F 90% 1018 mb
Low level cloud: 13%
Mid level cloud: 48%
High level cloud: 29%
Most Significant Cloud Type: medium
84%
0.2 In
19:00

SSW
SSW

10 / 21 mph 66 / 66°F 90% 1009 mb
Low level cloud: 35%
Mid level cloud: 54%
High level cloud: 88%
Most Significant Cloud Type: low
64%
0.4 In
Fri 31
May
01:00

W
W

4 / 8 mph 63 / 63°F 93% 1018 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 20%
Most Significant Cloud Type: medium
18%
0.0 In
07:00

W
W

4 / 8 mph 65 / 65°F 90% 1010 mb
Low level cloud: 31%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
32%
0.5 In
13:00

ENE
ENE

16 / 33 mph 67 / 67°F 81% 1019 mb
Low level cloud: 22%
Mid level cloud: 56%
High level cloud: 37%
Most Significant Cloud Type: low
46%
0.1 In
19:00

WNW
WNW

8 / 17 mph 63 / 63°F 86% 1010 mb
Low level cloud: 1%
Mid level cloud: 60%
High level cloud: 0%
Most Significant Cloud Type: medium
62%
0.0 In
Sat 01
Jun
01:00

NNW
NNW

6 / 13 mph 60 / 60°F 93% 1020 mb
Low level cloud: 1%
Mid level cloud: 29%
High level cloud: 4%
Most Significant Cloud Type: medium
30%
0.1 In
07:00

W
W

13 / 26 mph 53 / 49°F 86% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.1 In
13:00

NE
NE

8 / 17 mph 62 / 62°F 80% 1023 mb
Low level cloud: 85%
Mid level cloud: 82%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
19:00

WNW
WNW

6 / 13 mph 61 / 61°F 79% 1013 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 17%
Most Significant Cloud Type: medium
27%
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