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Manassas Weather Forecast

Temperature, wind, rain and more for Manassas

Virginia, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 21
Jan		13:00

S
S

 15 / 17 mph 39 / 31°F 26% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 19%
Most Significant Cloud Type: high
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 13 / 20 mph 41 / 34°F 32% 1024 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 7%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

 11 / 18 mph 37 / 29°F 49% 1023 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 1%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 12 / 22 mph 36 / 28°F 59% 1022 mb
Low level cloud: 0%
Mid level cloud: 66%
High level cloud: 11%
Most Significant Cloud Type: medium
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 22
Jan		01:00

SSW
SSW

 10 / 17 mph 36 / 28°F 67% 1020 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 8 / 16 mph 34 / 27°F 73% 1020 mb
Low level cloud: 49%
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
07:00

SW
SW

 6 / 12 mph 31 / 25°F 88% 1021 mb
Low level cloud: 11%
Mid level cloud: 0%
High level cloud: 58%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 7 / 9 mph 44 / 39°F 64% 1022 mb
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
13:00

W
W

 11 / 13 mph 51 / 46°F 42% 1020 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 47%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NW
NW

 7 / 11 mph 47 / 43°F 50% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 29%
Most Significant Cloud Type: high
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNW
NNW

 5 / 11 mph 34 / 29°F 67% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 4 / 6 mph 33 / 29°F 69% 1024 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
The 7 day weather forecast summary for Manassas:

The outlook for Manassas in the week ahead shows the average daytime maximum temperature will be around 0°C, with a high for the week of 11°C expected on the afternoon of Thursday 22nd. The mean minimum temperature will be -10°C, dipping to its lowest on the morning of Tuesday 27th at -22°C. Expect the week ahead to have mostly dry days although Sunday 25th and Monday 26th are likely to see a significant amount of snow. Current predictions suggest Sunday 27th will have the most precipitation with an accumulation of around 24.0mm. On the whole winds are likely to be moderate.

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