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Birchwood 14 Day Long Range Forecast

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

Alaska, United States Of America

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

The next 14 day outlook for Birchwood shows the average daytime maximum temperature will be around 12°C, with a high for the two weeks of 15°C expected on the afternoon of Sunday 26th. The average minimum temperature will be 7°C, dipping to its lowest on the morning of Saturday 18th at 5°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. Current predictions suggest Wednesday 22nd will have the most precipitation with an accumulation of around 13.0mm. On the whole winds are likely to be light.

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

WSW
WSW

2 / 3 mph 44 / 44°F 76% 1015 mb
Low level cloud: 84%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SW
SW

2 / 2 mph 43 / 44°F 86% 1016 mb
Low level cloud: 90%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

4 / 6 mph 42 / 39°F 87% 1017 mb
Low level cloud: 95%
Mid level cloud: 99%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

5 / 6 mph 45 / 43°F 88% 1017 mb
Low level cloud: 86%
Mid level cloud: 57%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

5 / 5 mph 49 / 47°F 86% 1018 mb
Low level cloud: 79%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

4 / 4 mph 52 / 50°F 75% 1019 mb
Low level cloud: 52%
Mid level cloud: 57%
High level cloud: 21%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

5 / 5 mph 50 / 48°F 70% 1019 mb
Low level cloud: 33%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

2 / 3 mph 48 / 47°F 77% 1020 mb
Low level cloud: 27%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May
12:00

WSW
WSW

3 / 3 mph 54 / 52°F 61% 1015 mb
Low level cloud: 1%
Mid level cloud: 7%
High level cloud: 15%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

2 / 3 mph 57 / 56°F 53% 1013 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 13%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

5 / 6 mph 57 / 55°F 46% 1011 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 24%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

8 / 10 mph 49 / 45°F 56% 1011 mb
Low level cloud: 0%
Mid level cloud: 34%
High level cloud: 18%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May
00:00

E
E

5 / 6 mph 46 / 43°F 64% 1010 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

4 / 5 mph 45 / 42°F 63% 1010 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

4 / 4 mph 46 / 44°F 62% 1011 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 19%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

2 / 3 mph 52 / 52°F 48% 1011 mb
Low level cloud: 0%
Mid level cloud: 78%
High level cloud: 32%
Most Significant Cloud Type: medium
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

5 / 6 mph 56 / 53°F 46% 1011 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 48%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

7 / 8 mph 56 / 53°F 51% 1011 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 33%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

3 / 4 mph 57 / 55°F 53% 1012 mb
Low level cloud: 0%
Mid level cloud: 68%
High level cloud: 97%
Most Significant Cloud Type: medium
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SW
SW

4 / 4 mph 50 / 49°F 62% 1012 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 78%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May
00:00

SSE
SSE

3 / 4 mph 48 / 48°F 68% 1014 mb
Low level cloud: 0%
Mid level cloud: 86%
High level cloud: 57%
Most Significant Cloud Type: medium
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

1 / 2 mph 46 / 46°F 73% 1016 mb
Low level cloud: 4%
Mid level cloud: 43%
High level cloud: 44%
Most Significant Cloud Type: medium
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

3 / 3 mph 47 / 46°F 74% 1016 mb
Low level cloud: 11%
Mid level cloud: 46%
High level cloud: 38%
Most Significant Cloud Type: medium
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

3 / 3 mph 53 / 51°F 60% 1017 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 100%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

4 / 5 mph 54 / 52°F 55% 1017 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 9%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

2 / 2 mph 56 / 54°F 52% 1017 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

3 / 4 mph 56 / 54°F 52% 1017 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 17%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

5 / 6 mph 50 / 47°F 66% 1018 mb
Low level cloud: 0%
Mid level cloud: 33%
High level cloud: 30%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
00:00

WNW
WNW

1 / 1 mph 45 / 45°F 71% 1020 mb
Low level cloud: 7%
Mid level cloud: 45%
High level cloud: 49%
Most Significant Cloud Type: medium
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

2 / 2 mph 44 / 44°F 73% 1021 mb
Low level cloud: 19%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

2 / 2 mph 46 / 45°F 72% 1020 mb
Low level cloud: 11%
Mid level cloud: 31%
High level cloud: 28%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

1 / 1 mph 53 / 52°F 60% 1020 mb
Low level cloud: 4%
Mid level cloud: 58%
High level cloud: 32%
Most Significant Cloud Type: medium
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

4 / 4 mph 54 / 53°F 60% 1019 mb
Low level cloud: 32%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

2 / 2 mph 56 / 56°F 56% 1017 mb
Low level cloud: 0%
Mid level cloud: 77%
High level cloud: 100%
Most Significant Cloud Type: medium
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

3 / 3 mph 54 / 54°F 66% 1016 mb
Low level cloud: 82%
Mid level cloud: 92%
High level cloud: 30%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

2 / 2 mph 48 / 49°F 89% 1016 mb
Low level cloud: 73%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Wed 22
May
00:00

E
E

5 / 6 mph 46 / 44°F 88% 1015 mb
Low level cloud: 83%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
03:00

E
E

4 / 5 mph 45 / 44°F 87% 1015 mb
Low level cloud: 77%
Mid level cloud: 75%
High level cloud: 29%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

E
E

3 / 4 mph 45 / 44°F 86% 1015 mb
Low level cloud: 88%
Mid level cloud: 78%
High level cloud: 94%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

ESE
ESE

2 / 2 mph 46 / 46°F 85% 1015 mb
Low level cloud: 89%
Mid level cloud: 68%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

NW
NW

2 / 3 mph 47 / 47°F 88% 1015 mb
Low level cloud: 87%
Mid level cloud: 67%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

3 / 3 mph 47 / 47°F 89% 1016 mb
Low level cloud: 88%
Mid level cloud: 79%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

4 / 5 mph 47 / 45°F 92% 1016 mb
Low level cloud: 99%
Mid level cloud: 69%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

2 / 2 mph 45 / 45°F 95% 1017 mb
Low level cloud: 98%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
00:00

NNW
NNW

1 / 2 mph 45 / 45°F 93% 1017 mb
Low level cloud: 97%
Mid level cloud: 83%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

2 / 2 mph 44 / 45°F 94% 1017 mb
Low level cloud: 91%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

3 / 3 mph 46 / 45°F 89% 1016 mb
Low level cloud: 36%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

0 / 1 mph 51 / 50°F 74% 1016 mb
Low level cloud: 6%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

4 / 4 mph 52 / 50°F 66% 1015 mb
Low level cloud: 76%
Mid level cloud: 44%
High level cloud: 1%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

1 / 1 mph 55 / 53°F 58% 1014 mb
Low level cloud: 24%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

2 / 2 mph 54 / 52°F 67% 1013 mb
Low level cloud: 40%
Mid level cloud: 44%
High level cloud: 3%
Most Significant Cloud Type: low
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

3 / 4 mph 47 / 46°F 85% 1013 mb
Low level cloud: 96%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 24
May
03:00

W
W

2 / 3 mph 49 / 49°F 96% 1017 mb
Low level cloud: 100%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
09:00

WNW
WNW

3 / 4 mph 64 / 64°F 64% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
15:00

NNE
NNE

1 / 1 mph 58 / 58°F 65% 1018 mb
Low level cloud: 8%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
51%
0.0 In
21:00

W
W

2 / 4 mph 52 / 52°F 72% 1016 mb
Low level cloud: 49%
Mid level cloud: 51%
High level cloud: 2%
Most Significant Cloud Type: low
66%
0.0 In
Sat 25
May
03:00

ESE
ESE

3 / 4 mph 46 / 46°F 70% 1015 mb
Low level cloud: 0%
Mid level cloud: 63%
High level cloud: 100%
Most Significant Cloud Type: medium
67%
0.0 In
09:00

SSE
SSE

0 / 1 mph 47 / 47°F 90% 1010 mb
Low level cloud: 92%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
15:00

NW
NW

5 / 8 mph 53 / 52°F 74% 1005 mb
Low level cloud: 60%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
21:00

NE
NE

1 / 2 mph 48 / 48°F 82% 1009 mb
Low level cloud: 41%
Mid level cloud: 46%
High level cloud: 39%
Most Significant Cloud Type: low
61%
0.3 In
Sun 26
May
03:00

NE
NE

4 / 7 mph 45 / 43°F 83% 1004 mb
Low level cloud: 47%
Mid level cloud: 100%
High level cloud: 93%
Most Significant Cloud Type: low
93%
0.1 In
09:00

W
W

4 / 6 mph 51 / 50°F 72% 1007 mb
Low level cloud: 15%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
30%
0.0 In
15:00

SW
SW

4 / 8 mph 57 / 57°F 62% 1008 mb
Low level cloud: 33%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
61%
0.0 In
21:00

SW
SW

3 / 5 mph 45 / 44°F 93% 1009 mb
Low level cloud: 94%
Mid level cloud: 72%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.3 In
Mon 27
May
03:00

WNW
WNW

2 / 4 mph 47 / 47°F 79% 1016 mb
Low level cloud: 30%
Mid level cloud: 39%
High level cloud: 53%
Most Significant Cloud Type: low
49%
0.1 In
09:00

W
W

4 / 6 mph 44 / 42°F 97% 1012 mb
Low level cloud: 94%
Mid level cloud: 47%
High level cloud: 2%
Most Significant Cloud Type: low
100%
0.1 In
15:00

W
W

5 / 10 mph 54 / 52°F 59% 1014 mb
Low level cloud: 23%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.0 In
21:00

NNW
NNW

1 / 2 mph 46 / 46°F 90% 1017 mb
Low level cloud: 33%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
42%
0.0 In
Tue 28
May
03:00

WNW
WNW

3 / 7 mph 44 / 43°F 93% 1015 mb
Low level cloud: 61%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
96%
0.1 In
09:00

W
W

1 / 2 mph 53 / 53°F 66% 1020 mb
Low level cloud: 25%
Mid level cloud: 9%
High level cloud: 17%
Most Significant Cloud Type: low
30%
0.0 In
15:00

ESE
ESE

5 / 10 mph 50 / 49°F 68% 1017 mb
Low level cloud: 1%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: medium
51%
0.0 In
21:00

WSW
WSW

9 / 15 mph 47 / 43°F 86% 1021 mb
Low level cloud: 90%
Mid level cloud: 100%
High level cloud: 98%
Most Significant Cloud Type: low
100%
0.0 In
Wed 29
May
03:00

E
E

7 / 13 mph 42 / 37°F 81% 1017 mb
Low level cloud: 9%
Mid level cloud: 58%
High level cloud: 0%
Most Significant Cloud Type: medium
84%
0.1 In
09:00

N
N

1 / 2 mph 54 / 55°F 65% 1020 mb
Low level cloud: 23%
Mid level cloud: 59%
High level cloud: 100%
Most Significant Cloud Type: low
55%
0.1 In
15:00

S
S

4 / 8 mph 58 / 58°F 46% 1016 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.0 In
21:00

NE
NE

2 / 3 mph 51 / 51°F 76% 1016 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 41%
Most Significant Cloud Type: medium
47%
0.0 In
Thu 30
May
03:00

NE
NE

1 / 2 mph 43 / 43°F 73% 1018 mb
Low level cloud: 33%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.0 In
09:00

ENE
ENE

2 / 4 mph 48 / 48°F 80% 1010 mb
Low level cloud: 66%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
15:00

SW
SW

2 / 5 mph 58 / 59°F 59% 1013 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
0.0 In
21:00

N
N

1 / 2 mph 50 / 50°F 84% 1008 mb
Low level cloud: 17%
Mid level cloud: 99%
High level cloud: 21%
Most Significant Cloud Type: medium
100%
0.1 In
Fri 31
May
03:00

ENE
ENE

2 / 4 mph 45 / 46°F 78% 1013 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 32%
Most Significant Cloud Type: high
32%
0.0 In
09:00

WSW
WSW

4 / 7 mph 51 / 50°F 74% 1008 mb
Low level cloud: 10%
Mid level cloud: 96%
High level cloud: 44%
Most Significant Cloud Type: medium
100%
0.0 In
15:00

SW
SW

3 / 6 mph 60 / 60°F 58% 1011 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
21:00

WNW
WNW

2 / 3 mph 49 / 49°F 85% 1009 mb
Low level cloud: 91%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Sat 01
Jun
03:00

E
E

2 / 4 mph 46 / 47°F 80% 1012 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 10%
Most Significant Cloud Type: medium
31%
0.0 In
09:00

N
N

1 / 2 mph 52 / 52°F 61% 1009 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
15:00

WSW
WSW

5 / 10 mph 58 / 58°F 56% 1013 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
0.0 In
21:00

NNW
NNW

1 / 1 mph 51 / 51°F 73% 1009 mb
Low level cloud: 13%
Mid level cloud: 46%
High level cloud: 70%
Most Significant Cloud Type: medium
85%
0.1 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.
(More Info)

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.
(More Info)

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