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East Providence 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for East Providence

Rhode Island, United States Of America

Long range weather outlook for East Providence includes 14 day forecast summary:

Over the next 14 days the East Providence forecast suggests the average daytime maximum temperature will be around 25°C, with a high for the two weeks of 30°C expected on the afternoon of Saturday 6th. The mean minimum temperature will be 13°C, dipping to its lowest on the morning of Saturday 13th at 8°C. Expect the coming 14 days to have most days seeing a little rain. The indicators are that Sunday 7th will have the most precipitation with an accumulation of around 7.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 04
Sep		01:00

SW
SW

 3 / 6 mph 59 / 59°F 92% 1013 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
04:00

WSW
WSW

 3 / 6 mph 55 / 55°F 94% 1013 mb
Low level cloud: 3%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 3 / 3 mph 65 / 63°F 79% 1014 mb
Low level cloud: 1%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

 5 / 6 mph 77 / 77°F 50% 1014 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
13:00

S
S

 10 / 11 mph 80 / 79°F 42% 1012 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

S
S

 11 / 13 mph 75 / 77°F 58% 1012 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
19:00

S
S

 7 / 9 mph 67 / 65°F 88% 1013 mb
Low level cloud: 10%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 8 / 13 mph 63 / 63°F 95% 1013 mb
Low level cloud: 41%
Mid level cloud: 19%
High level cloud: 18%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 05
Sep		19:00

SSW
SSW

 11 / 16 mph 74 / 76°F 84% 1016 mb
Low level cloud: 5%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 11 / 17 mph 71 / 71°F 79% 1016 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 06
Sep		01:00

SSW
SSW

 9 / 13 mph 71 / 71°F 82% 1016 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

 8 / 13 mph 69 / 69°F 92% 1016 mb
Low level cloud: 30%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

S
S

 11 / 13 mph 75 / 78°F 79% 1016 mb
Low level cloud: 1%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 16 / 18 mph 84 / 85°F 55% 1015 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

 17 / 19 mph 86 / 87°F 54% 1014 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 13 / 15 mph 83 / 85°F 64% 1014 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 4%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 3 / 4 mph 72 / 76°F 90% 1016 mb
Low level cloud: 89%
Mid level cloud: 25%
High level cloud: 22%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 5 / 8 mph 67 / 67°F 96% 1016 mb
Low level cloud: 81%
Mid level cloud: 30%
High level cloud: 81%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sun 07
Sep		01:00

NNW
NNW

 5 / 8 mph 63 / 63°F 92% 1017 mb
Low level cloud: 15%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

N
N

 7 / 9 mph 59 / 59°F 92% 1016 mb
Low level cloud: 20%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

N
N

 5 / 6 mph 58 / 57°F 93% 1017 mb
Low level cloud: 99%
Mid level cloud: 84%
High level cloud: 48%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

 4 / 5 mph 59 / 59°F 95% 1018 mb
Low level cloud: 70%
Mid level cloud: 60%
High level cloud: 81%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

WSW
WSW

 2 / 3 mph 63 / 60°F 95% 1018 mb
Low level cloud: 45%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
72%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
16:00

SSW
SSW

 5 / 7 mph 66 / 64°F 83% 1017 mb
Low level cloud: 2%
Mid level cloud: 21%
High level cloud: 97%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 5 / 9 mph 64 / 62°F 93% 1019 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 33%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WNW
WNW

 5 / 10 mph 59 / 59°F 86% 1021 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 8%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 08
Sep		01:00

WNW
WNW

 5 / 11 mph 56 / 56°F 75% 1021 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
04:00

NW
NW

 5 / 11 mph 53 / 52°F 75% 1023 mb
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
07:00

NW
NW

 5 / 8 mph 60 / 58°F 62% 1025 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
10:00

NW
NW

 6 / 6 mph 73 / 74°F 33% 1025 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
13:00

WNW
WNW

 6 / 6 mph 78 / 75°F 29% 1025 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 3 / 4 mph 77 / 76°F 38% 1025 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 3 / 6 mph 65 / 63°F 60% 1027 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 3 / 5 mph 60 / 60°F 59% 1028 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 09
Sep		01:00

N
N

 5 / 10 mph 56 / 55°F 61% 1029 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
04:00

N
N

 5 / 11 mph 53 / 51°F 72% 1030 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
07:00

NNE
NNE

 6 / 9 mph 59 / 58°F 73% 1030 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
10:00

E
E

 6 / 7 mph 75 / 76°F 44% 1030 mb
Low level cloud: 1%
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
13:00

SE
SE

 8 / 9 mph 78 / 77°F 40% 1030 mb
Low level cloud: 7%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 10 / 12 mph 74 / 76°F 49% 1029 mb
Low level cloud: 33%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

 6 / 6 mph 68 / 66°F 77% 1030 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
22:00

E
E

 4 / 6 mph 58 / 59°F 88% 1030 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
Wed 10
Sep		01:00

NE
NE

 3 / 7 mph 54 / 54°F 92% 1030 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
04:00

NE
NE

 4 / 9 mph 53 / 52°F 89% 1029 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 6 / 9 mph 62 / 60°F 78% 1028 mb
Low level cloud: 42%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 5 / 8 mph 64 / 64°F 83% 1027 mb
Low level cloud: 97%
Mid level cloud: 71%
High level cloud: 48%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

 5 / 8 mph 63 / 62°F 96% 1025 mb
Low level cloud: 100%
Mid level cloud: 63%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
16:00

NE
NE

 5 / 8 mph 62 / 62°F 99% 1023 mb
Low level cloud: 95%
Mid level cloud: 70%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNE
NNE

 4 / 6 mph 62 / 62°F 99% 1021 mb
Low level cloud: 98%
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
22:00

NNW
NNW

 3 / 5 mph 62 / 62°F 99% 1020 mb
Low level cloud: 96%
Mid level cloud: 46%
High level cloud: 32%
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
Thu 11
Sep		01:00

WNW
WNW

 4 / 7 mph 69 / 69°F 95% 1016 mb
Low level cloud: 1%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
13%
0.0 In
07:00

NNW
NNW

 6 / 10 mph 60 / 60°F 91% 1017 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 60%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

NE
NE

 12 / 16 mph 75 / 77°F 48% 1022 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 15%
Most Significant Cloud Type: medium
6%
0.0 In
19:00

ENE
ENE

 5 / 8 mph 67 / 67°F 73% 1021 mb
Low level cloud: 8%
Mid level cloud: 44%
High level cloud: 9%
Most Significant Cloud Type: medium
66%
0.0 In
Fri 12
Sep		01:00

NNE
NNE

 12 / 21 mph 57 / 55°F 88% 1016 mb
Low level cloud: 99%
Mid level cloud: 91%
High level cloud: 68%
Most Significant Cloud Type: low
100%
0.0 In
07:00

NNE
NNE

 12 / 23 mph 56 / 53°F 57% 1021 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: medium
5%
0.0 In
13:00

NW
NW

 11 / 21 mph 71 / 71°F 36% 1014 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
19:00

ENE
ENE

 4 / 9 mph 63 / 63°F 69% 1024 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
Sat 13
Sep		01:00

N
N

 5 / 11 mph 54 / 53°F 58% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

N
N

 5 / 10 mph 59 / 59°F 61% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

NW
NW

 2 / 4 mph 80 / 78°F 27% 1023 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
19:00

S
S

 5 / 9 mph 64 / 64°F 62% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 14
Sep		01:00

WNW
WNW

 4 / 7 mph 59 / 59°F 70% 1025 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
07:00

WSW
WSW

 4 / 8 mph 64 / 64°F 71% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

S
S

 2 / 5 mph 83 / 81°F 33% 1023 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
19:00

SSW
SSW

 8 / 17 mph 65 / 65°F 71% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Mon 15
Sep		01:00

WSW
WSW

 6 / 12 mph 60 / 60°F 84% 1023 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
07:00

WSW
WSW

 7 / 15 mph 65 / 65°F 63% 1022 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

W
W

 4 / 8 mph 86 / 83°F 26% 1021 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
0.0 In
19:00

WSW
WSW

 6 / 12 mph 74 / 77°F 54% 1020 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 9%
Most Significant Cloud Type: medium
13%
0.0 In
Tue 16
Sep		01:00

WNW
WNW

 3 / 7 mph 67 / 67°F 66% 1020 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
07:00

NE
NE

 7 / 13 mph 67 / 67°F 72% 1023 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 32%
Most Significant Cloud Type: medium
26%
0.0 In
13:00

S
S

 4 / 9 mph 86 / 85°F 37% 1018 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
0.0 In
19:00

ENE
ENE

 8 / 15 mph 61 / 61°F 74% 1025 mb
Low level cloud: 2%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: medium
53%
0.0 In
Wed 17
Sep		01:00

SSW
SSW

 6 / 13 mph 66 / 66°F 91% 1016 mb
Low level cloud: 1%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
0.0 In
07:00

NE
NE

 4 / 8 mph 61 / 61°F 71% 1025 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 76%
Most Significant Cloud Type: medium
49%
0.0 In
13:00

SSW
SSW

 13 / 26 mph 79 / 79°F 44% 1015 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 92%
Most Significant Cloud Type: medium
9%
0.0 In
19:00

ESE
ESE

 2 / 5 mph 69 / 69°F 68% 1023 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 49%
Most Significant Cloud Type: medium
15%
0.0 In
Thu 18
Sep		01:00

SSW
SSW

 7 / 15 mph 66 / 66°F 95% 1015 mb
Low level cloud: 51%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
66%
0.0 In
07:00

NE
NE

 1 / 3 mph 64 / 64°F 81% 1023 mb
Low level cloud: 53%
Mid level cloud: 13%
High level cloud: 8%
Most Significant Cloud Type: low
58%
0.0 In
13:00

S
S

 10 / 21 mph 75 / 78°F 71% 1014 mb
Low level cloud: 52%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
63%
0.1 In
19:00

SSE
SSE

 5 / 10 mph 68 / 69°F 91% 1022 mb
Low level cloud: 3%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
5%
0.0 In
Fri 19
Sep		01:00

N
N

 6 / 13 mph 63 / 63°F 84% 1014 mb
Low level cloud: 85%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
91%
0.0 In
07:00

NE
NE

 3 / 5 mph 65 / 65°F 95% 1022 mb
Low level cloud: 81%
Mid level cloud: 64%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
13:00

NNE
NNE

 9 / 18 mph 66 / 66°F 65% 1014 mb
Low level cloud: 39%
Mid level cloud: 62%
High level cloud: 0%
Most Significant Cloud Type: low
60%
0.0 In
19:00

ESE
ESE

 7 / 14 mph 67 / 67°F 99% 1018 mb
Low level cloud: 100%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
1.1 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.
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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