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Fairfax County (Herndon)
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United States weather

10 day weather forecast for Fairfax County

Thursday, April 2nd, 2026, at 08:37 AM
today
Overcast
17° 9°
tomorrow
Partly cloudy
26° 8°
Saturday
Sunny
29° 18°
Sunday
Moderate rain
20° 11°
Monday
Sunny
15° 4°
Tuesday
Patchy rain possible
11° 4°
Wednesday
Sunny
8° -1°
 More Details See
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Fairfax County Weather Pages

Fairfax County weather forecast

The weather forecast for Fairfax County for today indicates damp and chilly conditions with temperatures around 17 °F.

Heavy rain is expected on Sunday.

Wind speeds are expected to be breezy, averaging around 14 km/h.

On Friday, a significant warming trend with temperatures reaching 26°C.

Weather today
Fairfax County weather forecast

Fairfax County 14 days weather forecast

This weeks weather in Fairfax County. Click on a date for detailed forecasts
Thu. 2
17°
9°
Weather Alert
Overcast
0 mm
Fri. 3
26°
8°
Partly cloudy
0 mm
Sat. 4
29°
18°
Sunny
0 mm
Sun. 5
20°
11°
Moderate rain
10.5 mm
Mon. 6
15°
4°
Sunny
0 mm
Tue. 7
11°
4°
Patchy rain possible
0.3 mm
Wed. 8
8°
-1°
Sunny
0 mm
Thu. 9
13°
0°
Sunny
0 mm
Fri. 10
17°
3°
Partly cloudy
0 mm
Sat. 11
18°
9°
Patchy rain possible
0.2 mm
Sun. 12
16°
4°
Sunny
0 mm
Mon. 13
19°
11°
Patchy rain possible
2.5 mm
Tue. 14
13°
10°
Partly cloudy
0 mm
Wed. 15
12°
8°
Patchy rain possible
1.1 mm
Select a date

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Access Fairfax County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Rain Forecast for the Next 14 Days in Fairfax County

The chart displays the expected rainfall values (in mm) over the next 14 days in Fairfax County, highlighting variations in precipitation levels for specific dates. ☔

Fairfax County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Fairfax County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

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Location coordinates Where is Fairfax County?

Get accurate weather forecasts for Fairfax County, located at latitude 38.97 and longitude -77.386. Stay updated with localized weather information tailored for Fairfax County.

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