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Matua Island 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Matua Island

Russia

Long range weather outlook for Matua Island includes 14 day forecast summary:

The forecast for Matua Island in the coming two weeks is predicting the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 18°C expected on the afternoon of Wednesday 9th. The mean minimum temperature will be 8°C, dipping to its lowest on the morning of Wednesday 2nd at 6°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. Predictions are Saturday 5th will have the most precipitation with an accumulation of around 17.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 02
Jul
17:00

WNW
WNW

12 / 21 mph 53 / 48°F 85% 1015 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
20:00

WNW
WNW

10 / 21 mph 50 / 45°F 85% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

W
W

12 / 25 mph 47 / 42°F 85% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 46%
Most Significant Cloud Type: high
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 03
Jul
02:00

W
W

9 / 20 mph 49 / 44°F 84% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 12%
Most Significant Cloud Type: high
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

W
W

11 / 23 mph 47 / 41°F 86% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 15%
Most Significant Cloud Type: high
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

WSW
WSW

9 / 19 mph 50 / 45°F 88% 1017 mb
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
11:00

SSW
SSW

12 / 19 mph 56 / 52°F 85% 1016 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
14:00

SSW
SSW

15 / 17 mph 60 / 59°F 80% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

S
S

17 / 19 mph 59 / 55°F 80% 1014 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 64%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

S
S

17 / 21 mph 54 / 49°F 83% 1012 mb
Low level cloud: 20%
Mid level cloud: 96%
High level cloud: 69%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

S
S

22 / 27 mph 51 / 45°F 99% 1010 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 69%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
Fri 04
Jul
02:00

S
S

21 / 30 mph 50 / 43°F 100% 1008 mb
Low level cloud: 100%
Mid level cloud: 95%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
05:00

SSW
SSW

17 / 35 mph 47 / 40°F 100% 1006 mb
Low level cloud: 97%
Mid level cloud: 96%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SW
SW

16 / 33 mph 50 / 45°F 100% 1006 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSW
SSW

16 / 20 mph 59 / 56°F 100% 1004 mb
Low level cloud: 99%
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
14:00

SSW
SSW

17 / 20 mph 64 / 64°F 100% 1003 mb
Low level cloud: 88%
Mid level cloud: 86%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SW
SW

17 / 20 mph 63 / 63°F 100% 1002 mb
Low level cloud: 78%
Mid level cloud: 33%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SW
SW

17 / 23 mph 57 / 53°F 100% 1002 mb
Low level cloud: 92%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SW
SW

17 / 34 mph 53 / 48°F 100% 1002 mb
Low level cloud: 97%
Mid level cloud: 17%
High level cloud: 40%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 05
Jul
02:00

SW
SW

16 / 34 mph 49 / 43°F 100% 1002 mb
Low level cloud: 99%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
05:00

WSW
WSW

12 / 26 mph 46 / 40°F 100% 1002 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
08:00

SSW
SSW

12 / 26 mph 49 / 44°F 100% 1003 mb
Low level cloud: 98%
Mid level cloud: 56%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
11:00

S
S

8 / 10 mph 58 / 56°F 100% 1002 mb
Low level cloud: 100%
Mid level cloud: 62%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
14:00

SSE
SSE

5 / 5 mph 63 / 63°F 100% 1002 mb
Low level cloud: 94%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

N
N

8 / 9 mph 62 / 61°F 100% 1002 mb
Low level cloud: 93%
Mid level cloud: 10%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NE
NE

8 / 9 mph 56 / 54°F 99% 1003 mb
Low level cloud: 96%
Mid level cloud: 11%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

ENE
ENE

9 / 10 mph 52 / 49°F 99% 1005 mb
Low level cloud: 98%
Mid level cloud: 14%
High level cloud: 69%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 06
Jul
02:00

ENE
ENE

10 / 20 mph 46 / 41°F 99% 1006 mb
Low level cloud: 98%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

E
E

11 / 23 mph 44 / 39°F 99% 1007 mb
Low level cloud: 95%
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
08:00

E
E

13 / 22 mph 46 / 40°F 99% 1009 mb
Low level cloud: 100%
Mid level cloud: 32%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

ESE
ESE

13 / 15 mph 51 / 46°F 99% 1009 mb
Low level cloud: 100%
Mid level cloud: 21%
High level cloud: 71%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ESE
ESE

15 / 17 mph 54 / 49°F 99% 1010 mb
Low level cloud: 100%
Mid level cloud: 21%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ESE
ESE

18 / 20 mph 53 / 47°F 99% 1009 mb
Low level cloud: 100%
Mid level cloud: 11%
High level cloud: 96%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ESE
ESE

17 / 25 mph 50 / 44°F 98% 1010 mb
Low level cloud: 100%
Mid level cloud: 23%
High level cloud: 50%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

ESE
ESE

17 / 32 mph 48 / 41°F 100% 1010 mb
Low level cloud: 100%
Mid level cloud: 50%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Mon 07
Jul
02:00

ESE
ESE

19 / 36 mph 48 / 41°F 100% 1010 mb
Low level cloud: 100%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SE
SE

16 / 33 mph 46 / 38°F 100% 1010 mb
Low level cloud: 100%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SE
SE

12 / 25 mph 48 / 43°F 100% 1011 mb
Low level cloud: 100%
Mid level cloud: 7%
High level cloud: 13%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SE
SE

11 / 17 mph 54 / 50°F 100% 1011 mb
Low level cloud: 97%
Mid level cloud: 5%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SE
SE

12 / 14 mph 57 / 55°F 100% 1012 mb
Low level cloud: 96%
Mid level cloud: 18%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ESE
ESE

13 / 15 mph 56 / 53°F 100% 1012 mb
Low level cloud: 100%
Mid level cloud: 39%
High level cloud: 55%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SE
SE

15 / 26 mph 53 / 48°F 100% 1012 mb
Low level cloud: 100%
Mid level cloud: 33%
High level cloud: 18%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SE
SE

14 / 30 mph 50 / 45°F 100% 1012 mb
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 08
Jul
02:00

SSE
SSE

13 / 28 mph 49 / 44°F 100% 1011 mb
Low level cloud: 100%
Mid level cloud: 40%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

S
S

12 / 26 mph 46 / 41°F 100% 1011 mb
Low level cloud: 100%
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
08:00

SSW
SSW

13 / 26 mph 50 / 45°F 100% 1010 mb
Low level cloud: 99%
Mid level cloud: 20%
High level cloud: 94%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SW
SW

13 / 20 mph 58 / 55°F 100% 1010 mb
Low level cloud: 98%
Mid level cloud: 16%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SSW
SSW

9 / 10 mph 63 / 63°F 100% 1010 mb
Low level cloud: 94%
Mid level cloud: 17%
High level cloud: 41%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SSW
SSW

9 / 12 mph 61 / 61°F 100% 1010 mb
Low level cloud: 100%
Mid level cloud: 82%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SSW
SSW

11 / 22 mph 56 / 53°F 100% 1010 mb
Low level cloud: 99%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SSW
SSW

13 / 26 mph 52 / 48°F 100% 1010 mb
Low level cloud: 100%
Mid level cloud: 11%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 09
Jul
05:00

WNW
WNW

14 / 28 mph 45 / 39°F 93% 1007 mb
Low level cloud: 94%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
96%
0.0 In
11:00

SSW
SSW

7 / 15 mph 49 / 46°F 97% 1010 mb
Low level cloud: 51%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
17:00

NE
NE

5 / 10 mph 50 / 48°F 98% 1014 mb
Low level cloud: 94%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
23:00

W
W

11 / 21 mph 47 / 42°F 97% 1011 mb
Low level cloud: 97%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Thu 10
Jul
05:00

E
E

7 / 14 mph 45 / 41°F 96% 1017 mb
Low level cloud: 85%
Mid level cloud: 85%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
11:00

ENE
ENE

8 / 17 mph 50 / 47°F 100% 1010 mb
Low level cloud: 98%
Mid level cloud: 16%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.0 In
17:00

ESE
ESE

7 / 15 mph 53 / 51°F 98% 1010 mb
Low level cloud: 52%
Mid level cloud: 15%
High level cloud: 45%
Most Significant Cloud Type: low
100%
0.0 In
23:00

NE
NE

9 / 18 mph 48 / 44°F 97% 1010 mb
Low level cloud: 100%
Mid level cloud: 64%
High level cloud: 8%
Most Significant Cloud Type: low
100%
0.1 In
Fri 11
Jul
05:00

NE
NE

10 / 20 mph 44 / 39°F 98% 1009 mb
Low level cloud: 48%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
50%
0.0 In
11:00

NW
NW

10 / 20 mph 50 / 46°F 97% 1012 mb
Low level cloud: 36%
Mid level cloud: 28%
High level cloud: 1%
Most Significant Cloud Type: low
45%
0.0 In
17:00

NNW
NNW

11 / 23 mph 51 / 47°F 95% 1009 mb
Low level cloud: 74%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
79%
0.0 In
23:00

NW
NW

9 / 19 mph 48 / 44°F 96% 1015 mb
Low level cloud: 28%
Mid level cloud: 2%
High level cloud: 3%
Most Significant Cloud Type: low
28%
0.0 In
Sat 12
Jul
05:00

NNW
NNW

9 / 19 mph 44 / 39°F 94% 1010 mb
Low level cloud: 9%
Mid level cloud: 12%
High level cloud: 18%
Most Significant Cloud Type: low
15%
0.0 In
11:00

NNW
NNW

8 / 17 mph 54 / 52°F 94% 1017 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
17:00

NW
NW

10 / 21 mph 52 / 48°F 95% 1011 mb
Low level cloud: 33%
Mid level cloud: 7%
High level cloud: 1%
Most Significant Cloud Type: low
35%
0.0 In
23:00

WNW
WNW

11 / 23 mph 51 / 47°F 89% 1018 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
Sun 13
Jul
05:00

WNW
WNW

9 / 19 mph 46 / 42°F 94% 1013 mb
Low level cloud: 8%
Mid level cloud: 9%
High level cloud: 15%
Most Significant Cloud Type: low
13%
0.0 In
11:00

WNW
WNW

8 / 16 mph 54 / 52°F 88% 1018 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 33%
Most Significant Cloud Type: medium
9%
0.0 In
17:00

SW
SW

9 / 18 mph 52 / 49°F 91% 1014 mb
Low level cloud: 3%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: low
5%
0.0 In
23:00

SSW
SSW

8 / 16 mph 51 / 49°F 86% 1018 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
Mon 14
Jul
05:00

SSW
SSW

10 / 22 mph 48 / 43°F 96% 1012 mb
Low level cloud: 23%
Mid level cloud: 29%
High level cloud: 84%
Most Significant Cloud Type: low
43%
0.0 In
11:00

SSW
SSW

9 / 20 mph 52 / 49°F 94% 1018 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
4%
0.0 In
17:00

S
S

13 / 26 mph 57 / 54°F 100% 1009 mb
Low level cloud: 97%
Mid level cloud: 45%
High level cloud: 54%
Most Significant Cloud Type: low
100%
0.0 In
23:00

S
S

11 / 22 mph 50 / 46°F 96% 1017 mb
Low level cloud: 23%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: low
24%
0.0 In
Tue 15
Jul
05:00

S
S

16 / 34 mph 48 / 42°F 100% 999 mb
Low level cloud: 99%
Mid level cloud: 85%
High level cloud: 6%
Most Significant Cloud Type: low
100%
0.3 In
11:00

SSE
SSE

12 / 24 mph 51 / 47°F 96% 1017 mb
Low level cloud: 27%
Mid level cloud: 66%
High level cloud: 32%
Most Significant Cloud Type: low
53%
0.0 In
17:00

SW
SW

24 / 51 mph 60 / 60°F 100% 996 mb
Low level cloud: 99%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
23:00

SE
SE

11 / 22 mph 50 / 45°F 95% 1018 mb
Low level cloud: 9%
Mid level cloud: 46%
High level cloud: 29%
Most Significant Cloud Type: medium
73%
0.0 In
Wed 16
Jul
05:00

W
W

22 / 47 mph 47 / 39°F 97% 1002 mb
Low level cloud: 95%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
96%
0.0 In
11:00

ESE
ESE

12 / 25 mph 51 / 47°F 91% 1018 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 36%
Most Significant Cloud Type: medium
26%
0.0 In
17:00

WNW
WNW

8 / 16 mph 51 / 48°F 99% 1007 mb
Low level cloud: 86%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
23:00

ESE
ESE

12 / 25 mph 50 / 45°F 90% 1018 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 9%
Most Significant Cloud Type: medium
7%
0.0 In
Thu 17
Jul
05:00

NNW
NNW

7 / 14 mph 46 / 42°F 97% 1007 mb
Low level cloud: 83%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
85%
0.0 In
11:00

E
E

9 / 18 mph 55 / 53°F 91% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
7%
0.0 In
17:00

SE
SE

4 / 10 mph 51 / 50°F 97% 1008 mb
Low level cloud: 79%
Mid level cloud: 28%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
23:00

ENE
ENE

6 / 13 mph 52 / 49°F 93% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
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.
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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