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Killegray 14 Day Long Range Forecast

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

Western Isles, United Kingdom

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

The outlook for Killegray in the two weeks ahead shows the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 21°C expected on the afternoon of Friday 21st. The mean minimum temperature will be 10°C, dipping to its lowest on the morning of Wednesday 19th at 8°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. The current forecast indicates Monday 24th will have the most precipitation with an accumulation of around 10.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 16
Jun
15:00

N
N

15 / 18 mph 56 / 52°F 86% 1001 mb
Low level cloud: 94%
Mid level cloud: 20%
High level cloud: 9%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

16 / 21 mph 55 / 51°F 84% 1002 mb
Low level cloud: 84%
Mid level cloud: 9%
High level cloud: 38%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

13 / 15 mph 55 / 50°F 90% 1005 mb
Low level cloud: 37%
Mid level cloud: 28%
High level cloud: 93%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 17
Jun
00:00

N
N

11 / 16 mph 51 / 47°F 92% 1006 mb
Low level cloud: 87%
Mid level cloud: 28%
High level cloud: 18%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

11 / 17 mph 50 / 46°F 91% 1007 mb
Low level cloud: 80%
Mid level cloud: 29%
High level cloud: 6%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

12 / 19 mph 50 / 45°F 93% 1008 mb
Low level cloud: 85%
Mid level cloud: 28%
High level cloud: 6%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

11 / 17 mph 52 / 48°F 90% 1010 mb
Low level cloud: 84%
Mid level cloud: 21%
High level cloud: 3%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

13 / 21 mph 55 / 50°F 79% 1011 mb
Low level cloud: 60%
Mid level cloud: 10%
High level cloud: 20%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

15 / 18 mph 55 / 51°F 83% 1013 mb
Low level cloud: 68%
Mid level cloud: 15%
High level cloud: 74%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

13 / 15 mph 54 / 50°F 86% 1014 mb
Low level cloud: 77%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

12 / 14 mph 52 / 48°F 87% 1016 mb
Low level cloud: 80%
Mid level cloud: 31%
High level cloud: 42%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 18
Jun
00:00

NNW
NNW

11 / 15 mph 49 / 45°F 84% 1017 mb
Low level cloud: 51%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

10 / 15 mph 48 / 44°F 81% 1017 mb
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
06:00

NNW
NNW

10 / 16 mph 48 / 42°F 79% 1018 mb
Low level cloud: 58%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

12 / 17 mph 50 / 45°F 68% 1019 mb
Low level cloud: 75%
Mid level cloud: 6%
High level cloud: 14%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

11 / 14 mph 53 / 48°F 64% 1020 mb
Low level cloud: 26%
Mid level cloud: 12%
High level cloud: 10%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

12 / 14 mph 54 / 50°F 64% 1021 mb
Low level cloud: 6%
Mid level cloud: 14%
High level cloud: 14%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

9 / 10 mph 54 / 49°F 67% 1022 mb
Low level cloud: 25%
Mid level cloud: 4%
High level cloud: 95%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

6 / 7 mph 52 / 48°F 73% 1022 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 19
Jun
00:00

W
W

4 / 8 mph 46 / 44°F 74% 1022 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SW
SW

10 / 15 mph 49 / 45°F 79% 1021 mb
Low level cloud: 65%
Mid level cloud: 68%
High level cloud: 52%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

15 / 21 mph 51 / 46°F 91% 1020 mb
Low level cloud: 97%
Mid level cloud: 46%
High level cloud: 21%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

17 / 20 mph 55 / 50°F 96% 1019 mb
Low level cloud: 98%
Mid level cloud: 91%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

20 / 23 mph 61 / 59°F 84% 1019 mb
Low level cloud: 10%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: medium
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

23 / 26 mph 61 / 59°F 82% 1018 mb
Low level cloud: 4%
Mid level cloud: 32%
High level cloud: 18%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

21 / 25 mph 57 / 52°F 87% 1017 mb
Low level cloud: 21%
Mid level cloud: 62%
High level cloud: 20%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

20 / 23 mph 55 / 51°F 95% 1017 mb
Low level cloud: 100%
Mid level cloud: 96%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Thu 20
Jun
00:00

WSW
WSW

17 / 25 mph 53 / 48°F 97% 1017 mb
Low level cloud: 100%
Mid level cloud: 27%
High level cloud: 83%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

12 / 20 mph 52 / 48°F 98% 1016 mb
Low level cloud: 100%
Mid level cloud: 43%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

9 / 16 mph 51 / 48°F 98% 1016 mb
Low level cloud: 98%
Mid level cloud: 44%
High level cloud: 37%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

9 / 13 mph 53 / 50°F 98% 1016 mb
Low level cloud: 99%
Mid level cloud: 83%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

10 / 12 mph 55 / 52°F 98% 1016 mb
Low level cloud: 99%
Mid level cloud: 76%
High level cloud: 71%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

11 / 12 mph 56 / 53°F 98% 1015 mb
Low level cloud: 99%
Mid level cloud: 92%
High level cloud: 90%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

10 / 13 mph 55 / 52°F 98% 1015 mb
Low level cloud: 99%
Mid level cloud: 32%
High level cloud: 76%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

8 / 12 mph 54 / 51°F 96% 1014 mb
Low level cloud: 60%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 21
Jun
00:00

S
S

7 / 15 mph 49 / 46°F 94% 1014 mb
Low level cloud: 32%
Mid level cloud: 7%
High level cloud: 19%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

6 / 12 mph 48 / 45°F 91% 1012 mb
Low level cloud: 2%
Mid level cloud: 6%
High level cloud: 16%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

4 / 8 mph 53 / 50°F 86% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 14%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

3 / 4 mph 64 / 62°F 72% 1011 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 32%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

2 / 3 mph 69 / 67°F 61% 1010 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 97%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

6 / 6 mph 69 / 67°F 64% 1010 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 4%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

7 / 8 mph 67 / 64°F 70% 1009 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 6%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

5 / 11 mph 53 / 50°F 85% 1009 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 9%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 22
Jun
00:00

NNE
NNE

4 / 9 mph 50 / 49°F 89% 1008 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 27%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

3 / 7 mph 50 / 50°F 90% 1007 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 11%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

3 / 5 mph 56 / 55°F 88% 1007 mb
Low level cloud: 6%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

3 / 3 mph 64 / 62°F 81% 1007 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 12%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

3 / 4 mph 66 / 64°F 77% 1007 mb
Low level cloud: 6%
Mid level cloud: 2%
High level cloud: 7%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

5 / 6 mph 67 / 65°F 74% 1008 mb
Low level cloud: 5%
Mid level cloud: 3%
High level cloud: 6%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

6 / 7 mph 65 / 63°F 76% 1008 mb
Low level cloud: 4%
Mid level cloud: 4%
High level cloud: 6%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

3 / 7 mph 57 / 55°F 84% 1009 mb
Low level cloud: 6%
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
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 23
Jun
00:00

WSW
WSW

29 / 60 mph 51 / 44°F 89% 1001 mb
Low level cloud: 89%
Mid level cloud: 88%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SW
SW

6 / 12 mph 51 / 49°F 90% 1006 mb
Low level cloud: 28%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.0 In
12:00

WSW
WSW

8 / 13 mph 55 / 53°F 83% 1013 mb
Low level cloud: 58%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: low
85%
0.0 In
18:00

S
S

6 / 10 mph 60 / 60°F 72% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 54%
Most Significant Cloud Type: high
54%
0.0 In
Mon 24
Jun
00:00

S
S

11 / 20 mph 54 / 50°F 91% 1018 mb
Low level cloud: 92%
Mid level cloud: 20%
High level cloud: 10%
Most Significant Cloud Type: low
99%
0.0 In
06:00

S
S

1 / 2 mph 53 / 53°F 76% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 11%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

SW
SW

14 / 27 mph 55 / 51°F 77% 1011 mb
Low level cloud: 15%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.0 In
18:00

WNW
WNW

11 / 17 mph 56 / 53°F 86% 1012 mb
Low level cloud: 52%
Mid level cloud: 61%
High level cloud: 0%
Most Significant Cloud Type: low
73%
0.0 In
Tue 25
Jun
00:00

SW
SW

22 / 45 mph 51 / 44°F 87% 1011 mb
Low level cloud: 50%
Mid level cloud: 19%
High level cloud: 26%
Most Significant Cloud Type: low
59%
0.1 In
06:00

WNW
WNW

10 / 17 mph 51 / 47°F 87% 1019 mb
Low level cloud: 29%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: low
30%
0.0 In
12:00

SW
SW

18 / 37 mph 56 / 51°F 78% 1009 mb
Low level cloud: 11%
Mid level cloud: 44%
High level cloud: 7%
Most Significant Cloud Type: medium
75%
0.2 In
18:00

WSW
WSW

6 / 11 mph 55 / 53°F 77% 1025 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 16%
Most Significant Cloud Type: medium
20%
0.0 In
Wed 26
Jun
00:00

W
W

15 / 33 mph 49 / 43°F 85% 1007 mb
Low level cloud: 29%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.1 In
06:00

SSE
SSE

13 / 23 mph 52 / 48°F 84% 1026 mb
Low level cloud: 0%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: medium
40%
0.0 In
12:00

WNW
WNW

25 / 53 mph 52 / 45°F 82% 1011 mb
Low level cloud: 30%
Mid level cloud: 40%
High level cloud: 18%
Most Significant Cloud Type: low
45%
0.1 In
18:00

S
S

8 / 16 mph 58 / 56°F 78% 1026 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
Thu 27
Jun
00:00

W
W

18 / 37 mph 51 / 46°F 85% 1017 mb
Low level cloud: 31%
Mid level cloud: 7%
High level cloud: 32%
Most Significant Cloud Type: low
37%
0.1 In
06:00

SSE
SSE

10 / 21 mph 54 / 51°F 77% 1025 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
12:00

W
W

16 / 34 mph 54 / 49°F 76% 1018 mb
Low level cloud: 46%
Mid level cloud: 7%
High level cloud: 2%
Most Significant Cloud Type: low
48%
0.1 In
18:00

NW
NW

9 / 14 mph 62 / 62°F 76% 1024 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
Fri 28
Jun
00:00

NNW
NNW

3 / 6 mph 52 / 52°F 85% 1023 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
0.0 In
06:00

NE
NE

2 / 5 mph 56 / 57°F 84% 1023 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

S
S

12 / 25 mph 56 / 53°F 83% 1023 mb
Low level cloud: 92%
Mid level cloud: 45%
High level cloud: 14%
Most Significant Cloud Type: low
100%
0.0 In
18:00

N
N

4 / 7 mph 64 / 64°F 75% 1020 mb
Low level cloud: 61%
Mid level cloud: 45%
High level cloud: 2%
Most Significant Cloud Type: low
77%
0.0 In
Sat 29
Jun
00:00

SW
SW

11 / 23 mph 55 / 52°F 99% 1020 mb
Low level cloud: 95%
Mid level cloud: 55%
High level cloud: 37%
Most Significant Cloud Type: low
100%
0.3 In
06:00

E
E

4 / 8 mph 57 / 57°F 81% 1017 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 70%
Most Significant Cloud Type: medium
9%
0.0 In
12:00

SSW
SSW

14 / 30 mph 57 / 54°F 79% 1019 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
0.0 In
18:00

ENE
ENE

5 / 9 mph 65 / 65°F 76% 1014 mb
Low level cloud: 13%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: medium
78%
0.0 In
Sun 30
Jun
00:00

SW
SW

7 / 15 mph 54 / 53°F 91% 1020 mb
Low level cloud: 28%
Mid level cloud: 74%
High level cloud: 0%
Most Significant Cloud Type: low
54%
0.0 In
06:00

ENE
ENE

6 / 13 mph 57 / 56°F 85% 1011 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
12:00

S
S

5 / 10 mph 59 / 58°F 74% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
7%
0.0 In
18:00

NE
NE

8 / 14 mph 66 / 66°F 69% 1008 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 21%
Most Significant Cloud Type: medium
44%
0.0 In
Mon 01
Jul
00:00

ENE
ENE

9 / 20 mph 55 / 52°F 82% 1017 mb
Low level cloud: 16%
Mid level cloud: 24%
High level cloud: 85%
Most Significant Cloud Type: low
34%
0.0 In
06:00

ENE
ENE

8 / 15 mph 54 / 52°F 85% 1007 mb
Low level cloud: 18%
Mid level cloud: 43%
High level cloud: 36%
Most Significant Cloud Type: low
37%
0.0 In
12:00

S
S

15 / 32 mph 65 / 65°F 79% 1010 mb
Low level cloud: 92%
Mid level cloud: 44%
High level cloud: 94%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NE
NE

7 / 12 mph 60 / 60°F 78% 1007 mb
Low level cloud: 50%
Mid level cloud: 61%
High level cloud: 100%
Most Significant Cloud Type: low
83%
0.0 In

Other Locations Near to Killegray

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