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Viareggio 14 Day Long Range Forecast

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

Italy

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

The next 14 day outlook for Viareggio shows the average daytime maximum temperature will be around 12°C, with a high for the two weeks of 14°C expected on the afternoon of Monday 19th. The mean minimum temperature will be 7°C, dipping to its lowest on the morning of Monday 12th at 3°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. The indicators are that Sunday 18th will have the most precipitation with an accumulation of around 11.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 11
Jan		19:00

NE
NE

 3 / 3 mph 47 / 47°F 56% 1022 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 1%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ENE
ENE

 5 / 10 mph 41 / 37°F 58% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 35%
Most Significant Cloud Type: high
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 12
Jan		01:00

ENE
ENE

 5 / 9 mph 40 / 36°F 61% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

E
E

 6 / 11 mph 38 / 34°F 63% 1024 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 33%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 6 / 11 mph 38 / 33°F 64% 1025 mb
Low level cloud: 10%
Mid level cloud: 14%
High level cloud: 99%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 6 / 7 mph 43 / 40°F 63% 1025 mb
Low level cloud: 69%
Mid level cloud: 95%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ESE
ESE

 4 / 4 mph 49 / 47°F 61% 1025 mb
Low level cloud: 48%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 4 / 5 mph 48 / 46°F 70% 1024 mb
Low level cloud: 16%
Mid level cloud: 91%
High level cloud: 8%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 5 / 7 mph 45 / 43°F 72% 1024 mb
Low level cloud: 56%
Mid level cloud: 46%
High level cloud: 15%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ESE
ESE

 3 / 5 mph 45 / 44°F 77% 1024 mb
Low level cloud: 95%
Mid level cloud: 89%
High level cloud: 20%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 13
Jan		01:00

ESE
ESE

 4 / 5 mph 46 / 44°F 83% 1023 mb
Low level cloud: 98%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

E
E

 5 / 7 mph 45 / 43°F 89% 1023 mb
Low level cloud: 100%
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
07:00

ESE
ESE

 6 / 8 mph 45 / 42°F 91% 1022 mb
Low level cloud: 99%
Mid level cloud: 90%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 5 / 6 mph 48 / 45°F 91% 1023 mb
Low level cloud: 97%
Mid level cloud: 81%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ESE
ESE

 5 / 5 mph 49 / 48°F 92% 1022 mb
Low level cloud: 99%
Mid level cloud: 93%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 4 / 6 mph 50 / 48°F 92% 1021 mb
Low level cloud: 98%
Mid level cloud: 84%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

SE
SE

 4 / 7 mph 49 / 47°F 91% 1022 mb
Low level cloud: 93%
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
22:00

ESE
ESE

 5 / 9 mph 47 / 45°F 93% 1022 mb
Low level cloud: 93%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 14
Jan		01:00

E
E

 6 / 9 mph 48 / 46°F 92% 1022 mb
Low level cloud: 69%
Mid level cloud: 31%
High level cloud: 12%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ESE
ESE

 4 / 6 mph 50 / 48°F 91% 1022 mb
Low level cloud: 98%
Mid level cloud: 60%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 5 / 8 mph 50 / 48°F 93% 1022 mb
Low level cloud: 96%
Mid level cloud: 49%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 6 / 7 mph 51 / 49°F 92% 1022 mb
Low level cloud: 82%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ESE
ESE

 6 / 7 mph 55 / 54°F 85% 1022 mb
Low level cloud: 77%
Mid level cloud: 17%
High level cloud: 54%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 6 / 7 mph 54 / 53°F 87% 1021 mb
Low level cloud: 87%
Mid level cloud: 29%
High level cloud: 45%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

 6 / 9 mph 52 / 50°F 89% 1021 mb
Low level cloud: 79%
Mid level cloud: 24%
High level cloud: 100%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ESE
ESE

 6 / 9 mph 52 / 49°F 88% 1022 mb
Low level cloud: 89%
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
Thu 15
Jan		01:00

E
E

 6 / 9 mph 52 / 49°F 88% 1021 mb
Low level cloud: 82%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

E
E

 6 / 10 mph 51 / 49°F 87% 1020 mb
Low level cloud: 66%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

E
E

 6 / 10 mph 51 / 49°F 86% 1020 mb
Low level cloud: 74%
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
10:00

E
E

 7 / 8 mph 53 / 50°F 83% 1020 mb
Low level cloud: 75%
Mid level cloud: 72%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 7 / 8 mph 54 / 52°F 79% 1019 mb
Low level cloud: 94%
Mid level cloud: 60%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 7 / 9 mph 54 / 52°F 80% 1018 mb
Low level cloud: 70%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 6 / 8 mph 54 / 52°F 83% 1018 mb
Low level cloud: 94%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

E
E

 6 / 8 mph 52 / 51°F 87% 1018 mb
Low level cloud: 92%
Mid level cloud: 83%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Fri 16
Jan		01:00

E
E

 6 / 10 mph 50 / 47°F 88% 1018 mb
Low level cloud: 94%
Mid level cloud: 74%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

E
E

 6 / 10 mph 49 / 46°F 89% 1017 mb
Low level cloud: 85%
Mid level cloud: 52%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 5 / 9 mph 49 / 46°F 90% 1016 mb
Low level cloud: 93%
Mid level cloud: 100%
High level cloud: 54%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
10:00

E
E

 8 / 10 mph 51 / 48°F 90% 1016 mb
Low level cloud: 82%
Mid level cloud: 99%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

E
E

 6 / 8 mph 53 / 51°F 87% 1016 mb
Low level cloud: 97%
Mid level cloud: 49%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 6 / 7 mph 53 / 51°F 86% 1015 mb
Low level cloud: 69%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 6 / 7 mph 52 / 50°F 86% 1015 mb
Low level cloud: 48%
Mid level cloud: 39%
High level cloud: 100%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

E
E

 6 / 8 mph 51 / 48°F 87% 1016 mb
Low level cloud: 42%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 17
Jan		01:00

E
E

 6 / 10 mph 48 / 45°F 86% 1015 mb
Low level cloud: 54%
Mid level cloud: 30%
High level cloud: 100%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

E
E

 6 / 11 mph 46 / 43°F 86% 1014 mb
Low level cloud: 57%
Mid level cloud: 38%
High level cloud: 33%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

E
E

 7 / 13 mph 46 / 43°F 85% 1013 mb
Low level cloud: 91%
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
10:00

E
E

 7 / 10 mph 50 / 47°F 83% 1013 mb
Low level cloud: 86%
Mid level cloud: 64%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 7 / 8 mph 52 / 50°F 82% 1012 mb
Low level cloud: 89%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 4 / 4 mph 53 / 52°F 89% 1011 mb
Low level cloud: 95%
Mid level cloud: 50%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

ENE
ENE

 6 / 8 mph 51 / 49°F 85% 1011 mb
Low level cloud: 56%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ENE
ENE

 6 / 11 mph 49 / 46°F 85% 1011 mb
Low level cloud: 76%
Mid level cloud: 98%
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
Sun 18
Jan		01:00

ESE
ESE

 6 / 14 mph 48 / 46°F 85% 1001 mb
Low level cloud: 52%
Mid level cloud: 43%
High level cloud: 32%
Most Significant Cloud Type: low
71%
0.0 In
07:00

ENE
ENE

 5 / 11 mph 47 / 45°F 89% 1017 mb
Low level cloud: 19%
Mid level cloud: 6%
High level cloud: 5%
Most Significant Cloud Type: low
21%
0.0 In
13:00

ENE
ENE

 6 / 13 mph 54 / 52°F 78% 1022 mb
Low level cloud: 60%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
19:00

ENE
ENE

 6 / 13 mph 53 / 51°F 82% 1019 mb
Low level cloud: 9%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
71%
0.0 In
Mon 19
Jan		01:00

ESE
ESE

 5 / 11 mph 49 / 47°F 89% 995 mb
Low level cloud: 94%
Mid level cloud: 44%
High level cloud: 88%
Most Significant Cloud Type: low
100%
0.0 In
07:00

SW
SW

 2 / 5 mph 49 / 49°F 83% 1019 mb
Low level cloud: 42%
Mid level cloud: 29%
High level cloud: 51%
Most Significant Cloud Type: low
58%
0.0 In
13:00

ESE
ESE

 2 / 5 mph 56 / 57°F 78% 1011 mb
Low level cloud: 56%
Mid level cloud: 44%
High level cloud: 19%
Most Significant Cloud Type: low
73%
0.0 In
19:00

NW
NW

 1 / 3 mph 55 / 55°F 83% 1006 mb
Low level cloud: 41%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.0 In
Tue 20
Jan		01:00

ENE
ENE

 4 / 8 mph 50 / 49°F 78% 1017 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
07:00

ENE
ENE

 5 / 11 mph 44 / 41°F 71% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 98%
Most Significant Cloud Type: high
97%
0.0 In
13:00

W
W

 2 / 4 mph 60 / 60°F 63% 1020 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 100%
Most Significant Cloud Type: medium
5%
0.0 In
19:00

ENE
ENE

 3 / 7 mph 52 / 52°F 74% 1019 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 97%
Most Significant Cloud Type: medium
12%
0.0 In
Wed 21
Jan		01:00

ENE
ENE

 3 / 6 mph 49 / 49°F 79% 1022 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: medium
29%
0.0 In
07:00

E
E

 6 / 12 mph 47 / 44°F 73% 1020 mb
Low level cloud: 81%
Mid level cloud: 79%
High level cloud: 4%
Most Significant Cloud Type: low
100%
0.0 In
13:00

SSE
SSE

 3 / 6 mph 58 / 59°F 76% 1021 mb
Low level cloud: 18%
Mid level cloud: 27%
High level cloud: 100%
Most Significant Cloud Type: low
39%
0.0 In
19:00

ENE
ENE

 8 / 16 mph 51 / 49°F 78% 1018 mb
Low level cloud: 57%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: low
73%
0.0 In
Thu 22
Jan		01:00

SSE
SSE

 6 / 13 mph 49 / 47°F 95% 1018 mb
Low level cloud: 100%
Mid level cloud: 87%
High level cloud: 78%
Most Significant Cloud Type: low
100%
0.6 In
07:00

E
E

 9 / 18 mph 50 / 46°F 92% 1014 mb
Low level cloud: 93%
Mid level cloud: 89%
High level cloud: 34%
Most Significant Cloud Type: low
100%
0.1 In
13:00

NE
NE

 5 / 11 mph 54 / 53°F 78% 1020 mb
Low level cloud: 32%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.6 In
19:00

ENE
ENE

 7 / 15 mph 52 / 50°F 94% 1012 mb
Low level cloud: 50%
Mid level cloud: 61%
High level cloud: 98%
Most Significant Cloud Type: low
83%
0.6 In
Fri 23
Jan		01:00

NE
NE

 4 / 9 mph 47 / 45°F 77% 1024 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 33%
Most Significant Cloud Type: medium
33%
0.0 In
07:00

NE
NE

 4 / 7 mph 52 / 52°F 91% 1014 mb
Low level cloud: 59%
Mid level cloud: 41%
High level cloud: 7%
Most Significant Cloud Type: low
74%
0.2 In
13:00

NE
NE

 1 / 2 mph 59 / 59°F 51% 1026 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 5%
Most Significant Cloud Type: medium
1%
0.0 In
19:00

N
N

 3 / 6 mph 58 / 59°F 85% 1019 mb
Low level cloud: 9%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
16%
0.0 In
Sat 24
Jan		01:00

ENE
ENE

 4 / 9 mph 47 / 45°F 56% 1031 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 2%
Most Significant Cloud Type: medium
10%
0.0 In
07:00

ENE
ENE

 4 / 9 mph 49 / 48°F 87% 1023 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 8%
Most Significant Cloud Type: medium
6%
0.0 In
13:00

WSW
WSW

 2 / 4 mph 62 / 62°F 54% 1029 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 32%
Most Significant Cloud Type: medium
12%
0.0 In
19:00

NNE
NNE

 3 / 6 mph 55 / 55°F 84% 1024 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 93%
Most Significant Cloud Type: medium
27%
0.0 In
Sun 25
Jan		01:00

ENE
ENE

 5 / 10 mph 47 / 44°F 76% 1029 mb
Low level cloud: 13%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: low
13%
0.0 In
07:00

E
E

 4 / 9 mph 49 / 47°F 86% 1022 mb
Low level cloud: 5%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
60%
0.0 In
13:00

SSW
SSW

 1 / 2 mph 63 / 63°F 68% 1028 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
0.0 In
19:00

SSE
SSE

 5 / 10 mph 55 / 54°F 92% 1020 mb
Low level cloud: 65%
Mid level cloud: 50%
High level cloud: 0%
Most Significant Cloud Type: low
82%
0.0 In
Mon 26
Jan		01:00

ENE
ENE

 4 / 7 mph 47 / 46°F 82% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
0.0 In
07:00

ESE
ESE

 4 / 7 mph 52 / 51°F 92% 1018 mb
Low level cloud: 99%
Mid level cloud: 91%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
13:00

S
S

 2 / 4 mph 60 / 60°F 62% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 31%
Most Significant Cloud Type: high
30%
0.0 In
19:00

E
E

 5 / 10 mph 54 / 54°F 89% 1018 mb
Low level cloud: 38%
Mid level cloud: 45%
High level cloud: 85%
Most Significant Cloud Type: low
63%
0.1 In

Other Locations Near to Viareggio

Cities and Towns: Massa, Italy
Ski Resorts: Abetone, Italy
Football: Esperia Viareggio FC, Italy

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