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Boise 14 Day Long Range Forecast

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

Idaho, United States Of America

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

The next 14 day outlook for Boise shows the average daytime maximum temperature will be around 20°C, with a high for the two weeks of 25°C expected on the afternoon of Saturday 25th. The mean minimum temperature will be 7°C, dipping to its lowest on the morning of Monday 20th at 4°C. The coming 14 days will have mixed weather with some days dry and some seeing a little rain. The current forecast indicates Wednesday 22nd will have the most precipitation with an accumulation of around 3.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityCloud AmountPrecip AmountWeather
Fri 17
May
02:00

WNW
WNW

7 / 14 mph 58 / 56°F 50%
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NW
NW

9 / 17 mph 51 / 48°F 61%
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
08:00

WNW
WNW

14 / 16 mph 59 / 56°F 55%
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
11:00

WNW
WNW

17 / 19 mph 65 / 63°F 40%
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NW
NW

15 / 17 mph 67 / 66°F 29%
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NNW
NNW

17 / 20 mph 67 / 65°F 19%
Low level cloud: 0%
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
20:00

NNW
NNW

11 / 18 mph 56 / 53°F 33%
Low level cloud: 0%
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
23:00

NNW
NNW

4 / 5 mph 53 / 53°F 37%
Low level cloud: 0%
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
Sat 18
May
02:00

WNW
WNW

3 / 5 mph 46 / 46°F 43%
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNE
NNE

2 / 3 mph 41 / 41°F 45%
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
08:00

SSE
SSE

2 / 2 mph 56 / 55°F 32%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 14%
Most Significant Cloud Type: high
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SW
SW

4 / 4 mph 64 / 62°F 23%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 9%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

WNW
WNW

5 / 5 mph 69 / 67°F 23%
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 99%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

N
N

2 / 2 mph 72 / 69°F 24%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ESE
ESE

6 / 14 mph 62 / 60°F 31%
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 32%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

W
W

7 / 14 mph 54 / 51°F 38%
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 54%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May
02:00

WNW
WNW

14 / 18 mph 49 / 44°F 49%
Low level cloud: 0%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NW
NW

11 / 17 mph 42 / 35°F 58%
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
08:00

NW
NW

14 / 17 mph 48 / 41°F 48%
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

WNW
WNW

16 / 18 mph 54 / 48°F 39%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NW
NW

15 / 17 mph 59 / 55°F 33%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NW
NW

12 / 13 mph 61 / 59°F 30%
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNW
NNW

9 / 17 mph 50 / 46°F 45%
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NW
NW

6 / 11 mph 46 / 42°F 57%
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
Mon 20
May
02:00

NW
NW

6 / 10 mph 41 / 37°F 64%
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
05:00

NW
NW

6 / 11 mph 38 / 34°F 68%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NW
NW

11 / 13 mph 48 / 43°F 53%
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NW
NW

15 / 17 mph 59 / 55°F 38%
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
14:00

NW
NW

19 / 21 mph 65 / 64°F 30%
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NNW
NNW

13 / 15 mph 64 / 63°F 33%
Low level cloud: 0%
Mid level cloud: 61%
High level cloud: 44%
Most Significant Cloud Type: medium
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NW
NW

11 / 21 mph 54 / 50°F 52%
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NNW
NNW

8 / 15 mph 47 / 44°F 60%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
02:00

NW
NW

7 / 12 mph 44 / 40°F 68%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NNW
NNW

6 / 11 mph 41 / 37°F 74%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 2%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NW
NW

10 / 12 mph 52 / 47°F 55%
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

WNW
WNW

14 / 16 mph 62 / 61°F 42%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 2%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NW
NW

11 / 13 mph 67 / 66°F 29%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 52%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NW
NW

8 / 9 mph 68 / 67°F 23%
Low level cloud: 0%
Mid level cloud: 84%
High level cloud: 100%
Most Significant Cloud Type: medium
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

WNW
WNW

16 / 19 mph 57 / 53°F 55%
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

N
N

8 / 9 mph 51 / 48°F 83%
Low level cloud: 18%
Mid level cloud: 66%
High level cloud: 9%
Most Significant Cloud Type: medium
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Wed 22
May
02:00

NW
NW

9 / 11 mph 50 / 47°F 82%
Low level cloud: 7%
Mid level cloud: 56%
High level cloud: 14%
Most Significant Cloud Type: medium
75%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
05:00

WNW
WNW

6 / 9 mph 48 / 46°F 77%
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 18%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

WNW
WNW

9 / 10 mph 53 / 48°F 68%
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 15%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

WNW
WNW

12 / 14 mph 58 / 55°F 50%
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NW
NW

9 / 11 mph 60 / 57°F 45%
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NNW
NNW

13 / 14 mph 63 / 62°F 39%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNW
NNW

7 / 12 mph 55 / 51°F 52%
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NW
NW

3 / 6 mph 48 / 48°F 59%
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
02:00

WNW
WNW

8 / 15 mph 42 / 37°F 86%
Low level cloud: 2%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NW
NW

7 / 11 mph 40 / 35°F 91%
Low level cloud: 20%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

WNW
WNW

10 / 11 mph 48 / 43°F 74%
Low level cloud: 12%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

WNW
WNW

13 / 15 mph 54 / 50°F 56%
Low level cloud: 0%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NNW
NNW

15 / 17 mph 59 / 55°F 45%
Low level cloud: 0%
Mid level cloud: 49%
High level cloud: 66%
Most Significant Cloud Type: medium
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NW
NW

13 / 15 mph 63 / 62°F 37%
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 22%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NW
NW

8 / 15 mph 54 / 50°F 57%
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 10%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NW
NW

3 / 5 mph 48 / 47°F 66%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityCloud AmountPrecip AmountWeather
Fri 24
May
05:00

N
N

2 / 3 mph 45 / 45°F 67%
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
0.0 In
11:00

WNW
WNW

8 / 11 mph 56 / 54°F 45%
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 14%
Most Significant Cloud Type: medium
13%
0.0 In
17:00

NW
NW

8 / 13 mph 66 / 65°F 29%
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
23:00

WNW
WNW

3 / 5 mph 50 / 50°F 69%
Low level cloud: 0%
Mid level cloud: 98%
High level cloud: 74%
Most Significant Cloud Type: medium
100%
0.0 In
Sat 25
May
05:00

ENE
ENE

4 / 8 mph 50 / 49°F 43%
Low level cloud: 0%
Mid level cloud: 36%
High level cloud: 34%
Most Significant Cloud Type: medium
36%
0.0 In
11:00

SW
SW

6 / 11 mph 65 / 65°F 45%
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
17:00

NNW
NNW

9 / 15 mph 75 / 75°F 28%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 96%
Most Significant Cloud Type: medium
7%
0.0 In
23:00

NNE
NNE

4 / 7 mph 56 / 56°F 50%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 22%
Most Significant Cloud Type: medium
5%
0.0 In
Sun 26
May
05:00

NW
NW

4 / 7 mph 49 / 48°F 62%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
11:00

WNW
WNW

9 / 15 mph 68 / 69°F 38%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: medium
3%
0.0 In
17:00

NNW
NNW

11 / 19 mph 71 / 71°F 28%
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 3%
Most Significant Cloud Type: high
2%
0.0 In
23:00

E
E

5 / 11 mph 59 / 59°F 34%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: medium
3%
0.0 In
Mon 27
May
05:00

NW
NW

2 / 4 mph 48 / 48°F 57%
Low level cloud: 0%
Mid level cloud: 89%
High level cloud: 0%
Most Significant Cloud Type: medium
88%
0.0 In
11:00

WNW
WNW

8 / 14 mph 73 / 75°F 35%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 12%
Most Significant Cloud Type: medium
2%
0.0 In
17:00

WNW
WNW

13 / 23 mph 72 / 74°F 30%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
23:00

ENE
ENE

4 / 9 mph 62 / 62°F 42%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Tue 28
May
05:00

NNE
NNE

2 / 3 mph 52 / 52°F 71%
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
11:00

SSW
SSW

5 / 9 mph 78 / 77°F 30%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
17:00

WNW
WNW

7 / 12 mph 79 / 77°F 27%
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
23:00

ENE
ENE

4 / 9 mph 65 / 65°F 35%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Wed 29
May
05:00

E
E

7 / 15 mph 54 / 51°F 51%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 3%
Most Significant Cloud Type: medium
3%
0.0 In
11:00

S
S

4 / 8 mph 84 / 81°F 22%
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
17:00

SSE
SSE

12 / 21 mph 86 / 82°F 17%
Low level cloud: 0%
Mid level cloud: 82%
High level cloud: 0%
Most Significant Cloud Type: medium
82%
0.0 In
23:00

WNW
WNW

8 / 16 mph 66 / 66°F 47%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 14%
Most Significant Cloud Type: medium
7%
0.0 In
Thu 30
May
05:00

NNW
NNW

8 / 14 mph 51 / 48°F 85%
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 15%
Most Significant Cloud Type: medium
9%
0.0 In
11:00

WNW
WNW

5 / 10 mph 83 / 82°F 34%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 2%
Most Significant Cloud Type: medium
4%
0.0 In
17:00

NNW
NNW

13 / 24 mph 69 / 69°F 27%
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: medium
3%
0.0 In
23:00

NNW
NNW

11 / 22 mph 68 / 68°F 52%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 36%
Most Significant Cloud Type: medium
3%
0.0 In
Fri 31
May
05:00

NNW
NNW

5 / 10 mph 45 / 43°F 60%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
6%
0.0 In
11:00

WNW
WNW

7 / 13 mph 80 / 80°F 38%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
17:00

NNW
NNW

13 / 23 mph 68 / 67°F 30%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 33%
Most Significant Cloud Type: medium
3%
0.0 In
23:00

N
N

4 / 9 mph 69 / 69°F 30%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
4%
0.0 In
Sat 01
Jun
05:00

NW
NW

3 / 6 mph 46 / 46°F 62%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 26%
Most Significant Cloud Type: high
25%
0.0 In
11:00

WNW
WNW

10 / 19 mph 80 / 79°F 31%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
0.0 In
17:00

NW
NW

13 / 25 mph 70 / 70°F 33%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
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.
(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