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California 14 Day Long Range Forecast

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

Missouri, United States Of America

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

Reviewing the forecast for California Over the next 14 days and the average daytime maximum temperature will be around 27°C, with a high for the two weeks of 31°C expected on the afternoon of Sunday 19th. The mean minimum temperature will be 17°C, dipping to its lowest on the morning of Thursday 23rd at 9°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. It looks like Tuesday 21st will have the most precipitation with an accumulation of around 18.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 17
May
15:00

NNE
NNE

0 / 0 mph 82 / 79°F 57% 1006 mb
Low level cloud: 9%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

4 / 7 mph 76 / 77°F 82% 1006 mb
Low level cloud: 3%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

6 / 12 mph 65 / 65°F 88% 1008 mb
Low level cloud: 3%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May
00:00

S
S

6 / 13 mph 63 / 63°F 93% 1008 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

6 / 12 mph 61 / 61°F 94% 1008 mb
Low level cloud: 1%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

5 / 10 mph 64 / 62°F 93% 1010 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

5 / 6 mph 75 / 76°F 77% 1011 mb
Low level cloud: 2%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

3 / 4 mph 82 / 81°F 59% 1011 mb
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
15:00

NNW
NNW

5 / 7 mph 84 / 84°F 56% 1010 mb
Low level cloud: 1%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

4 / 6 mph 82 / 83°F 78% 1011 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
21:00

ESE
ESE

2 / 4 mph 73 / 77°F 84% 1012 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
Sun 19
May
00:00

S
S

4 / 7 mph 69 / 69°F 88% 1013 mb
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
03:00

SSE
SSE

6 / 13 mph 66 / 66°F 92% 1014 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 18%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

5 / 11 mph 67 / 65°F 92% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

8 / 9 mph 78 / 79°F 75% 1014 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 2%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

8 / 9 mph 85 / 86°F 56% 1013 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

9 / 13 mph 87 / 90°F 59% 1011 mb
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
18:00

S
S

8 / 16 mph 81 / 82°F 75% 1009 mb
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
21:00

SSE
SSE

9 / 18 mph 71 / 71°F 81% 1010 mb
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
Mon 20
May
00:00

S
S

16 / 26 mph 73 / 77°F 70% 1011 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 97%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

14 / 25 mph 71 / 71°F 74% 1008 mb
Low level cloud: 0%
Mid level cloud: 57%
High level cloud: 32%
Most Significant Cloud Type: medium
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

15 / 24 mph 69 / 68°F 86% 1010 mb
Low level cloud: 10%
Mid level cloud: 10%
High level cloud: 44%
Most Significant Cloud Type: low
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

9 / 11 mph 76 / 77°F 71% 1011 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 43%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

10 / 13 mph 83 / 83°F 60% 1009 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 65%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

13 / 18 mph 84 / 87°F 66% 1008 mb
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
18:00

SSE
SSE

9 / 18 mph 81 / 83°F 78% 1007 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

9 / 19 mph 74 / 78°F 80% 1008 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 1%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
00:00

S
S

12 / 23 mph 73 / 77°F 78% 1007 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 1%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

13 / 23 mph 71 / 71°F 80% 1006 mb
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
06:00

S
S

15 / 26 mph 71 / 70°F 85% 1005 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

19 / 25 mph 80 / 82°F 74% 1004 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

21 / 30 mph 86 / 90°F 61% 1002 mb
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
15:00

SSW
SSW

20 / 30 mph 83 / 86°F 67% 1002 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

20 / 33 mph 75 / 78°F 90% 1002 mb
Low level cloud: 2%
Mid level cloud: 21%
High level cloud: 4%
Most Significant Cloud Type: medium
26%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
21:00

SSW
SSW

11 / 23 mph 71 / 71°F 95% 1003 mb
Low level cloud: 20%
Mid level cloud: 16%
High level cloud: 14%
Most Significant Cloud Type: low
26%
Expect 0.5 In of precipitation over the past 3 hours.
0.5 In
Wed 22
May
00:00

WNW
WNW

4 / 7 mph 70 / 70°F 96% 1004 mb
Low level cloud: 25%
Mid level cloud: 25%
High level cloud: 65%
Most Significant Cloud Type: low
41%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
03:00

E
E

4 / 8 mph 66 / 66°F 99% 1003 mb
Low level cloud: 73%
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
06:00

S
S

10 / 16 mph 69 / 68°F 98% 1004 mb
Low level cloud: 78%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

16 / 27 mph 76 / 80°F 91% 1003 mb
Low level cloud: 90%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
89%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

SW
SW

21 / 30 mph 82 / 86°F 79% 1003 mb
Low level cloud: 21%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
28%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

NW
NW

15 / 19 mph 63 / 63°F 87% 1008 mb
Low level cloud: 75%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

14 / 21 mph 64 / 63°F 79% 1009 mb
Low level cloud: 49%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

10 / 16 mph 61 / 61°F 77% 1013 mb
Low level cloud: 39%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
00:00

NW
NW

12 / 20 mph 55 / 51°F 95% 1015 mb
Low level cloud: 41%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

8 / 15 mph 50 / 47°F 98% 1015 mb
Low level cloud: 57%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

8 / 13 mph 52 / 47°F 97% 1017 mb
Low level cloud: 52%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

9 / 10 mph 62 / 60°F 77% 1019 mb
Low level cloud: 48%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

8 / 9 mph 68 / 66°F 63% 1019 mb
Low level cloud: 3%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

6 / 7 mph 72 / 68°F 60% 1017 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 22%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

4 / 5 mph 70 / 68°F 76% 1017 mb
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
21:00

NNE
NNE

5 / 11 mph 60 / 60°F 85% 1019 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
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
00:00

SSE
SSE

9 / 18 mph 62 / 62°F 97% 1016 mb
Low level cloud: 25%
Mid level cloud: 19%
High level cloud: 36%
Most Significant Cloud Type: low
35%
0.0 In
06:00

S
S

12 / 26 mph 67 / 67°F 97% 1007 mb
Low level cloud: 60%
Mid level cloud: 8%
High level cloud: 70%
Most Significant Cloud Type: low
71%
0.0 In
12:00

SW
SW

15 / 31 mph 82 / 87°F 70% 1002 mb
Low level cloud: 7%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
11%
0.0 In
18:00

WSW
WSW

12 / 26 mph 81 / 89°F 87% 1006 mb
Low level cloud: 8%
Mid level cloud: 53%
High level cloud: 0%
Most Significant Cloud Type: medium
76%
0.0 In
Sat 25
May
00:00

S
S

18 / 37 mph 75 / 78°F 65% 1005 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
06:00

SSW
SSW

12 / 26 mph 69 / 69°F 93% 1007 mb
Low level cloud: 4%
Mid level cloud: 53%
High level cloud: 49%
Most Significant Cloud Type: medium
66%
0.0 In
12:00

SSW
SSW

19 / 40 mph 83 / 87°F 65% 1007 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
0.0 In
18:00

S
S

14 / 29 mph 80 / 85°F 78% 1008 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: medium
34%
0.0 In
Sun 26
May
00:00

NNW
NNW

9 / 19 mph 69 / 69°F 92% 1010 mb
Low level cloud: 10%
Mid level cloud: 11%
High level cloud: 95%
Most Significant Cloud Type: medium
42%
0.0 In
06:00

SSW
SSW

14 / 30 mph 69 / 69°F 93% 1008 mb
Low level cloud: 20%
Mid level cloud: 5%
High level cloud: 5%
Most Significant Cloud Type: low
22%
0.1 In
12:00

SW
SW

15 / 31 mph 83 / 89°F 72% 1008 mb
Low level cloud: 88%
Mid level cloud: 46%
High level cloud: 18%
Most Significant Cloud Type: low
100%
0.6 In
18:00

W
W

5 / 11 mph 74 / 78°F 90% 1007 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 1%
Most Significant Cloud Type: medium
32%
0.1 In
Mon 27
May
00:00

NE
NE

6 / 13 mph 67 / 67°F 98% 1011 mb
Low level cloud: 69%
Mid level cloud: 14%
High level cloud: 50%
Most Significant Cloud Type: low
80%
0.5 In
06:00

SSE
SSE

1 / 2 mph 65 / 65°F 95% 1014 mb
Low level cloud: 39%
Mid level cloud: 5%
High level cloud: 32%
Most Significant Cloud Type: low
44%
0.5 In
12:00

SSE
SSE

3 / 7 mph 73 / 77°F 93% 1012 mb
Low level cloud: 75%
Mid level cloud: 60%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.1 In
18:00

NE
NE

13 / 26 mph 69 / 69°F 90% 1013 mb
Low level cloud: 22%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.0 In
Tue 28
May
00:00

NNE
NNE

9 / 18 mph 60 / 60°F 98% 1016 mb
Low level cloud: 97%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.3 In
06:00

NE
NE

6 / 13 mph 62 / 62°F 92% 1015 mb
Low level cloud: 3%
Mid level cloud: 68%
High level cloud: 100%
Most Significant Cloud Type: medium
79%
0.0 In
12:00

NE
NE

10 / 21 mph 66 / 66°F 88% 1018 mb
Low level cloud: 100%
Mid level cloud: 29%
High level cloud: 11%
Most Significant Cloud Type: low
100%
0.1 In
18:00

ENE
ENE

11 / 24 mph 69 / 69°F 86% 1015 mb
Low level cloud: 23%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
32%
0.4 In
Wed 29
May
00:00

N
N

14 / 29 mph 57 / 54°F 97% 1020 mb
Low level cloud: 90%
Mid level cloud: 92%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.3 In
06:00

NE
NE

6 / 13 mph 58 / 57°F 96% 1016 mb
Low level cloud: 11%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
75%
0.1 In
12:00

NNE
NNE

10 / 21 mph 67 / 67°F 63% 1023 mb
Low level cloud: 60%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
62%
0.0 In
18:00

N
N

9 / 20 mph 63 / 63°F 86% 1017 mb
Low level cloud: 47%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: low
61%
0.0 In
Thu 30
May
00:00

ESE
ESE

4 / 8 mph 57 / 57°F 86% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

WNW
WNW

7 / 15 mph 55 / 53°F 94% 1018 mb
Low level cloud: 14%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.0 In
12:00

ESE
ESE

11 / 23 mph 71 / 71°F 56% 1023 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
18:00

WNW
WNW

10 / 21 mph 67 / 67°F 76% 1016 mb
Low level cloud: 1%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
0.0 In
Fri 31
May
00:00

SSE
SSE

8 / 17 mph 57 / 56°F 87% 1021 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

NW
NW

8 / 17 mph 57 / 55°F 92% 1017 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
0.0 In
12:00

S
S

8 / 17 mph 71 / 71°F 69% 1023 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
18:00

N
N

10 / 21 mph 64 / 64°F 72% 1019 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
Sat 01
Jun
00:00

SSE
SSE

8 / 17 mph 61 / 61°F 86% 1020 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 99%
Most Significant Cloud Type: medium
11%
0.0 In
06:00

NNW
NNW

5 / 11 mph 51 / 49°F 93% 1025 mb
Low level cloud: 17%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
23%
0.0 In
12:00

SSE
SSE

12 / 26 mph 71 / 71°F 84% 1018 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
0.0 In
18:00

NNW
NNW

4 / 8 mph 67 / 67°F 70% 1023 mb
Low level cloud: 5%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
39%
0.0 In

Other Locations Near to California

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.
(More Info)

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