Fairfax Weather

United States, North America

Updated: 12:15 AMVerified DataReal-time

Fairfax

United States, United States of America

Wednesday, 15 July 2026 at 00:28

26°

Clear

Feels like 28°C

Humidity

74%

Wind

8.3 km/h WSW

Visibility

16 km

Pressure

1017 mb

Weather Alerts (3)

Heat AdvisoryModerate

* WHAT...Heat index values up to 105 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

District of Columbia; Frederick; Carroll; Northern Baltimore; Cecil; Southern Baltimore; Prince Georges; Anne Arundel; Charles; St. Marys; Calvert; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Southeast Harford; Rappahannock; Culpeper; Fairfax; Arlington/Falls Church/Alexandria; Stafford; Spotsylvania; King George; Northern Fauquier; Southern Fauquier; Western Loudoun; Eastern Loudoun; Northwest Prince William; Central and Southeast Prince William/Manassas/Manassas Park

Weather Forecast for Fairfax

38°/ 21°

Sunny

Updated now

Rain Chance

Humidity

60%

Max Wind

13 km/h

Avg Temp

29°C

Sunrise

05:56 AM

Sunset

08:33 PM

Hourly Breakdown

Morning (6AM - 12PM)

26°C9%

06:00 am

21°

07:00 am

22°

08:00 am

25°

09:00 am

27°

10:00 am

28°

11:00 am

33°

Afternoon (12PM - 6PM)

36°C3%

12:00 pm

34°

01:00 pm

36°

02:00 pm

36°

03:00 pm

37°

04:00 pm

38°

05:00 pm

38°

Evening (6PM - 12AM)

32°C3%

06:00 pm

37°

07:00 pm

35°

08:00 pm

31°

09:00 pm

30°

10:00 pm

30°

11:00 pm

29°

Night (12AM - 6AM)

23°C9%

12:00 am

23°

01:00 am

26°

02:00 am

22°

03:00 am

22°

04:00 am

22°

05:00 am

22°

Hourly Forecast

Extended Forecast

Today

Sunny

13 km/h

38°21°

Thu, 16 Jul

Sunny

Other US Locations

View All

New York

29°C

Partly cloudy

H: 39°L: 23°

Los Angeles

23°C

Clear

H: 33°L: 17°

Chicago

29°C

Clear

H: 36°L: 22°

Houston

25°C

Overcast

H: 28°L: 24°

Phoenix

39°C

Partly cloudy

H: 44°L: 25°

Philadelphia

28°C

Clear

H: 37°L: 23°

About Fairfax Weather

Fairfax is located in the United States with varying weather patterns throughout the year. Plan your visit to Fairfaxwith our accurate weather forecasts, including hourly updates, 7-day predictions, and real-time conditions. Whether you're a local or visitor, stay prepared for whatever weather the United States brings.