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Amherst 14 Day Long Range Forecast

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

Massachusetts, United States Of America

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

The outlook for Amherst in the two weeks ahead shows the average daytime maximum temperature will be around 24°C, with a high for the two weeks of 32°C expected on the afternoon of Wednesday 22nd. The average minimum temperature will be 9°C, dipping to its lowest on the morning of Saturday 25th at 5°C. Expect the following 14 days ahead to have mixed overhead conditions with some days dry and some seeing a significant amount of rain. It looks like Thursday 23rd will have the most precipitation with an accumulation of around 9.0mm. On the whole winds are likely to be light.

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

E
E

9 / 10 mph 75 / 76°F 47% 1013 mb
Low level cloud: 1%
Mid level cloud: 83%
High level cloud: 100%
Most Significant Cloud Type: medium
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

9 / 11 mph 74 / 76°F 53% 1014 mb
Low level cloud: 26%
Mid level cloud: 23%
High level cloud: 81%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

5 / 10 mph 60 / 58°F 79% 1015 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 12%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

3 / 6 mph 51 / 51°F 94% 1016 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 12%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May
01:00

NNE
NNE

4 / 8 mph 48 / 46°F 95% 1016 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 29%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

N
N

4 / 9 mph 46 / 44°F 93% 1017 mb
Low level cloud: 0%
Mid level cloud: 40%
High level cloud: 100%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

5 / 7 mph 53 / 51°F 79% 1017 mb
Low level cloud: 92%
Mid level cloud: 92%
High level cloud: 95%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

6 / 7 mph 57 / 56°F 70% 1017 mb
Low level cloud: 92%
Mid level cloud: 96%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

5 / 6 mph 58 / 57°F 70% 1017 mb
Low level cloud: 87%
Mid level cloud: 70%
High level cloud: 22%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NE
NE

6 / 7 mph 61 / 60°F 68% 1016 mb
Low level cloud: 72%
Mid level cloud: 64%
High level cloud: 13%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ENE
ENE

4 / 7 mph 57 / 54°F 84% 1016 mb
Low level cloud: 41%
Mid level cloud: 33%
High level cloud: 55%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

N
N

4 / 8 mph 48 / 47°F 97% 1017 mb
Low level cloud: 56%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May
01:00

N
N

4 / 9 mph 48 / 46°F 97% 1017 mb
Low level cloud: 75%
Mid level cloud: 25%
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

4 / 7 mph 50 / 49°F 92% 1017 mb
Low level cloud: 91%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

N
N

6 / 7 mph 58 / 55°F 82% 1017 mb
Low level cloud: 82%
Mid level cloud: 11%
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

NE
NE

7 / 8 mph 64 / 64°F 69% 1017 mb
Low level cloud: 89%
Mid level cloud: 15%
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

ENE
ENE

6 / 7 mph 67 / 67°F 64% 1016 mb
Low level cloud: 87%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ENE
ENE

5 / 6 mph 68 / 68°F 64% 1016 mb
Low level cloud: 87%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

4 / 7 mph 60 / 59°F 89% 1016 mb
Low level cloud: 5%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NE
NE

2 / 5 mph 51 / 52°F 97% 1018 mb
Low level cloud: 53%
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
Mon 20
May
01:00

NE
NE

2 / 4 mph 48 / 49°F 98% 1018 mb
Low level cloud: 40%
Mid level cloud: 5%
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

NE
NE

2 / 4 mph 47 / 47°F 98% 1018 mb
Low level cloud: 54%
Mid level cloud: 5%
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

NE
NE

2 / 3 mph 60 / 59°F 84% 1018 mb
Low level cloud: 24%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

2 / 3 mph 76 / 76°F 55% 1017 mb
Low level cloud: 25%
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
13:00

NE
NE

2 / 2 mph 84 / 80°F 44% 1016 mb
Low level cloud: 5%
Mid level cloud: 30%
High level cloud: 8%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

4 / 4 mph 83 / 80°F 44% 1014 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 15%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

6 / 12 mph 67 / 64°F 79% 1015 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 5%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

4 / 9 mph 55 / 55°F 97% 1016 mb
Low level cloud: 14%
Mid level cloud: 6%
High level cloud: 13%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
01:00

S
S

4 / 7 mph 52 / 52°F 98% 1016 mb
Low level cloud: 32%
Mid level cloud: 9%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

3 / 6 mph 50 / 50°F 98% 1016 mb
Low level cloud: 35%
Mid level cloud: 7%
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

S
S

3 / 3 mph 65 / 62°F 79% 1016 mb
Low level cloud: 5%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

6 / 6 mph 79 / 78°F 55% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

S
S

8 / 9 mph 86 / 84°F 41% 1012 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

9 / 10 mph 87 / 85°F 43% 1011 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

9 / 15 mph 69 / 68°F 72% 1013 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 50%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

6 / 12 mph 60 / 60°F 85% 1014 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 11%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May
01:00

S
S

5 / 10 mph 56 / 55°F 93% 1013 mb
Low level cloud: 5%
Mid level cloud: 3%
High level cloud: 7%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

4 / 9 mph 52 / 51°F 98% 1013 mb
Low level cloud: 21%
Mid level cloud: 4%
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

5 / 6 mph 68 / 65°F 78% 1014 mb
Low level cloud: 3%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

8 / 10 mph 84 / 83°F 49% 1013 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

11 / 13 mph 89 / 87°F 37% 1010 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

11 / 12 mph 88 / 87°F 45% 1009 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

11 / 18 mph 71 / 69°F 66% 1010 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

5 / 11 mph 59 / 59°F 91% 1012 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 100%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
01:00

S
S

6 / 12 mph 58 / 58°F 96% 1010 mb
Low level cloud: 25%
Mid level cloud: 28%
High level cloud: 73%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

7 / 13 mph 58 / 57°F 96% 1009 mb
Low level cloud: 43%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

S
S

9 / 11 mph 66 / 64°F 86% 1008 mb
Low level cloud: 28%
Mid level cloud: 15%
High level cloud: 17%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

12 / 14 mph 80 / 80°F 62% 1006 mb
Low level cloud: 29%
Mid level cloud: 47%
High level cloud: 16%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

12 / 14 mph 84 / 85°F 58% 1004 mb
Low level cloud: 51%
Mid level cloud: 44%
High level cloud: 63%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

11 / 21 mph 75 / 77°F 85% 1002 mb
Low level cloud: 46%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
74%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

WSW
WSW

9 / 17 mph 67 / 67°F 95% 1003 mb
Low level cloud: 88%
Mid level cloud: 31%
High level cloud: 13%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
22:00

NW
NW

10 / 17 mph 56 / 53°F 87% 1007 mb
Low level cloud: 28%
Mid level cloud: 0%
High level cloud: 74%
Most Significant Cloud Type: low
36%
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

NW
NW

2 / 3 mph 55 / 55°F 71% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

WNW
WNW

12 / 23 mph 54 / 51°F 61% 1009 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
13:00

WNW
WNW

11 / 13 mph 83 / 82°F 34% 1011 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 42%
Most Significant Cloud Type: medium
33%
0.0 In
19:00

S
S

3 / 6 mph 72 / 76°F 70% 1014 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 9%
Most Significant Cloud Type: medium
6%
0.0 In
Sat 25
May
01:00

ENE
ENE

5 / 10 mph 52 / 51°F 81% 1019 mb
Low level cloud: 92%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
07:00

WNW
WNW

11 / 17 mph 53 / 50°F 60% 1012 mb
Low level cloud: 36%
Mid level cloud: 14%
High level cloud: 2%
Most Significant Cloud Type: low
40%
0.0 In
13:00

WNW
WNW

14 / 29 mph 70 / 70°F 32% 1012 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
19:00

NNW
NNW

5 / 10 mph 55 / 55°F 56% 1020 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
Sun 26
May
01:00

WSW
WSW

2 / 4 mph 50 / 50°F 81% 1019 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 77%
Most Significant Cloud Type: medium
9%
0.0 In
07:00

NNW
NNW

3 / 5 mph 62 / 62°F 56% 1026 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 8%
Most Significant Cloud Type: medium
2%
0.0 In
13:00

SSE
SSE

4 / 8 mph 78 / 77°F 29% 1019 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
19:00

SSE
SSE

4 / 9 mph 62 / 62°F 59% 1022 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Mon 27
May
01:00

S
S

5 / 11 mph 54 / 53°F 69% 1019 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
0.0 In
07:00

SSE
SSE

3 / 6 mph 57 / 58°F 67% 1019 mb
Low level cloud: 0%
Mid level cloud: 52%
High level cloud: 5%
Most Significant Cloud Type: medium
52%
0.0 In
13:00

S
S

8 / 17 mph 60 / 60°F 99% 1012 mb
Low level cloud: 100%
Mid level cloud: 89%
High level cloud: 3%
Most Significant Cloud Type: low
100%
0.0 In
19:00

ESE
ESE

2 / 4 mph 68 / 68°F 81% 1013 mb
Low level cloud: 70%
Mid level cloud: 43%
High level cloud: 4%
Most Significant Cloud Type: low
85%
0.0 In
Tue 28
May
01:00

S
S

4 / 9 mph 65 / 65°F 99% 1009 mb
Low level cloud: 92%
Mid level cloud: 10%
High level cloud: 14%
Most Significant Cloud Type: low
97%
0.1 In
07:00

ENE
ENE

3 / 6 mph 58 / 59°F 98% 1013 mb
Low level cloud: 97%
Mid level cloud: 99%
High level cloud: 76%
Most Significant Cloud Type: low
100%
0.1 In
13:00

WNW
WNW

13 / 26 mph 76 / 77°F 38% 1011 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 14%
Most Significant Cloud Type: medium
21%
0.0 In
19:00

ESE
ESE

2 / 3 mph 56 / 56°F 91% 1015 mb
Low level cloud: 86%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
92%
0.3 In
Wed 29
May
01:00

NNW
NNW

2 / 4 mph 53 / 54°F 91% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

S
S

2 / 3 mph 59 / 59°F 88% 1015 mb
Low level cloud: 46%
Mid level cloud: 5%
High level cloud: 66%
Most Significant Cloud Type: low
55%
0.0 In
13:00

NW
NW

7 / 16 mph 77 / 77°F 32% 1016 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 20%
Most Significant Cloud Type: medium
15%
0.0 In
19:00

S
S

4 / 8 mph 65 / 65°F 86% 1011 mb
Low level cloud: 6%
Mid level cloud: 25%
High level cloud: 100%
Most Significant Cloud Type: medium
44%
0.0 In
Thu 30
May
01:00

NNW
NNW

1 / 3 mph 58 / 58°F 86% 1018 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 33%
Most Significant Cloud Type: medium
19%
0.0 In
07:00

N
N

1 / 2 mph 66 / 66°F 83% 1012 mb
Low level cloud: 15%
Mid level cloud: 45%
High level cloud: 46%
Most Significant Cloud Type: medium
88%
0.0 In
13:00

NW
NW

1 / 2 mph 80 / 79°F 39% 1016 mb
Low level cloud: 0%
Mid level cloud: 39%
High level cloud: 100%
Most Significant Cloud Type: medium
43%
0.0 In
19:00

S
S

6 / 12 mph 62 / 62°F 95% 1010 mb
Low level cloud: 91%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.2 In
Fri 31
May
01:00

NW
NW

2 / 4 mph 54 / 54°F 99% 1017 mb
Low level cloud: 49%
Mid level cloud: 52%
High level cloud: 100%
Most Significant Cloud Type: low
79%
0.1 In
07:00

S
S

6 / 12 mph 58 / 57°F 99% 1010 mb
Low level cloud: 92%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.7 In
13:00

ENE
ENE

13 / 28 mph 71 / 71°F 54% 1019 mb
Low level cloud: 3%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
53%
0.2 In
19:00

SSE
SSE

3 / 7 mph 64 / 64°F 90% 1009 mb
Low level cloud: 43%
Mid level cloud: 23%
High level cloud: 7%
Most Significant Cloud Type: low
51%
0.0 In
Sat 01
Jun
01:00

NE
NE

12 / 25 mph 51 / 47°F 96% 1022 mb
Low level cloud: 90%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.4 In
07:00

S
S

5 / 10 mph 58 / 57°F 99% 1009 mb
Low level cloud: 80%
Mid level cloud: 59%
High level cloud: 68%
Most Significant Cloud Type: low
100%
0.4 In
13:00

NNE
NNE

12 / 26 mph 46 / 40°F 90% 1027 mb
Low level cloud: 66%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
1.3 In
19:00

WNW
WNW

3 / 7 mph 58 / 59°F 85% 1009 mb
Low level cloud: 0%
Mid level cloud: 76%
High level cloud: 0%
Most Significant Cloud Type: medium
76%
0.2 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.
(More Info)

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