Fairfax, VA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Clear 15°F
Feels Like 15°F  
Humidity 60% Dew Point 4°F Wind NW 1 MPH Barometer 30.36 in.
Report from a MADIS/MESONET weather station 1.2 mi. N of central Fairfax
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Point Forecast at a Glance

MonDec 15
Mon Dec 15: Mostly Sunny, High 30F, Low 19F
30
19
TueDec 16
Tue Dec 16: Sunny, High 38F, Low 27F
38
27
WedDec 17
Wed Dec 17: Partly Sunny, High 49F, Low 30F
49
30
ThuDec 18
Thu Dec 18: Partly Sunny, High 54F, Low 37F
54
37
FriDec 19
Fri Dec 19: Mostly Sunny, High 45F, Low 25F
45
25
SatDec 20
Sat Dec 20: Mostly Sunny, High 43F, Low 37F
43
37
SunDec 21
Sun Dec 21: Rain, High 51F
30%
51
 

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7-Day Temperature Trend

Week Ahead Summary

High temperatures climb from 30°F to a high of 54°F by week's end. Some rain possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 3°F below the historical average for December. Normal highs for this period are around 47°F with lows around 30°F.

This Date in Weather History

1945 - A record December snowstorm buried Buffalo, NY, under 36.6 inches of snow, with unofficial totals south of the city ranging up to 70 inches. Travel was brought to a halt by the storm.

More on this and other weather history

Fairfax, VA 7 Day Weather Forecast Details

Monday Dec 15

Mostly Sunny

Day: Mostly sunny, with a high near 30. Northwest wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 19. South wind around 6 mph becoming light and variable after midnight.

Tuesday Dec 16

Sunny

Day: Sunny, with a high near 38. Calm wind becoming south around 5 mph in the afternoon.

Mostly Clear

Night: Mostly clear, with a low around 27. South wind around 6 mph.

Wednesday Dec 17

Partly Sunny

Day: Partly sunny, with a high near 49. Southwest wind around 6 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 30.

Thursday Dec 18

Partly Sunny

Day: Partly sunny, with a high near 54.

Rain

Night: Rain. Low around 37. Chance of precipitation is 90%.

Friday Dec 19

Mostly Sunny

Day: Mostly sunny, with a high near 45.

Partly Cloudy

Night: Partly cloudy, with a low around 25.

Saturday Dec 20

Mostly Sunny

Day: Mostly sunny, with a high near 43.

Mostly Cloudy

Night: Mostly cloudy, with a low around 37.

Sunday Dec 21

Rain

Day: A chance of rain. Partly sunny, with a high near 51. Chance of precipitation is 30%.


About Fairfax, VA

Fairfax ( FAIR-faks) is an independent city in Virginia and the county seat of Fairfax County, Virginia, United States. As of the 2020 census, the population was 24,146. Fairfax is part of both the Washington metropolitan area and Northern Virginia regions. It is located 14 miles (23 km) west of Washington, D.C. Fairfax is served by Washington Metro's Orange Line. George Mason University, located in unincorporated Fairfax County along Fairfax's southern border, is the largest public university in Virginia with 40,185 students as of 2023.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.