Fairfax County, VA Weather Forecast
County weather hub
Sunny
Compare major city weather across Fairfax County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 72. North wind 9 to 14 mph, with gusts as high as 23 mph.
County Weather Overview
This county weather page brings together forecast coverage for Fairfax County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 9 of 9 mapped cities in Fairfax County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 29, 2026 8:20 PM EDT
- Forecast office
- LWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fairfax County
Friday looks like the warmest upcoming period in Fairfax County at 87 degrees F.
Saturday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Saturday at about 9 to 14 mph N.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 29, 2026 8:20 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- LWX
- Radar station
- KLWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 51. North wind 3 to 13 mph, with gusts as high as 22 mph.
Sunny, with a high near 75. Northwest wind around 5 mph.
Mostly clear, with a low around 56. South wind around 5 mph.
Sunny, with a high near 79.
Mostly clear, with a low around 57.
Sunny, with a high near 76.
Mostly clear, with a low around 56.
A slight chance of rain showers between 8am and 2pm. Sunny, with a high near 77.
Mostly clear, with a low around 56.
Sunny, with a high near 82.
Mostly clear, with a low around 61.
Mostly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Sunny
|
72°F |
9 to 14 mph
N
|
|
Saturday Night
May 30
|
Clear
|
51°F |
3 to 13 mph
N
|
|
Sunday
May 31
|
Sunny
|
75°F |
5 mph
NW
|
|
Sunday Night
May 31
|
Mostly Clear
|
56°F |
5 mph
S
|
|
Monday
Jun 1
|
Sunny
|
79°F |
3 to 8 mph
W
|
|
Monday Night
Jun 1
|
Mostly Clear
|
57°F |
2 to 7 mph
N
|
|
Tuesday
Jun 2
|
Sunny
|
76°F |
6 to 10 mph
N
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
56°F |
3 to 7 mph
N
|
|
Wednesday
Jun 3
|
Slight Chance Rain Showers
|
77°F |
6 to 10 mph
N
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
56°F |
2 to 7 mph
NW
|
|
Thursday
Jun 4
|
Sunny
|
82°F |
6 mph
W
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
61°F |
5 mph
SW
|
|
Friday
Jun 5
|
Mostly Sunny
|
87°F |
2 to 8 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Fairfax County.
Coverage
Forecast coverage currently spans 9 of 9 mapped cities in Fairfax County.
Largest mapped city population in this region: 48,115.
