Fairfax, VA Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Fairfax, VA in one place.
A chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms likely between 4pm and 5pm, then a chance of showers and thunderstorms. Partly sunny. High near 91, with temperatures falling to around 85 in the afternoon. South wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Fairfax, VA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 13, 2026 11:32 AM EDT.
The active forecast window currently covers Jun 14 to Jun 19, 2026 for Fairfax, VA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 14 to Jun 19, 2026
- Latest sync
- Jun 13, 2026 11:32 AM EDT
- Forecast office
- LWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fairfax
Thursday looks like the warmest upcoming period in Fairfax at 92 degrees F.
Monday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Thursday at about 10 to 17 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 13, 2026 11:32 AM EDT
- Coverage
- 6 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
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63. West wind 7 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 79. Northwest wind 8 to 12 mph, with gusts as high as 21 mph.
Mostly cloudy, with a low around 60.
Partly sunny, with a high near 79.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Partly cloudy, with a low around 66.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 87. Chance of precipitation is 40%.
A chance of rain showers before 8pm. Partly cloudy, with a low around 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jun 14
|
Partly Sunny then Chance Showers And Thunderstorms
|
91°F |
6 to 13 mph
S
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
63°F |
7 to 12 mph
W
|
|
Monday
Jun 15
|
Mostly Sunny
|
79°F |
8 to 12 mph
NW
|
|
Monday Night
Jun 15
|
Mostly Cloudy
|
60°F |
2 to 7 mph
NW
|
|
Tuesday
Jun 16
|
Partly Sunny
|
79°F |
1 to 6 mph
W
|
|
Tuesday Night
Jun 16
|
Partly Cloudy then Slight Chance Rain Showers
|
61°F |
2 to 6 mph
S
|
|
Wednesday
Jun 17
|
Slight Chance Rain Showers then Mostly Sunny
|
84°F |
3 to 10 mph
S
|
|
Wednesday Night
Jun 17
|
Partly Cloudy
|
66°F |
6 to 10 mph
S
|
|
Thursday
Jun 18
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
92°F |
10 to 17 mph
SW
|
|
Thursday Night
Jun 18
|
Chance Showers And Thunderstorms
|
70°F |
10 to 16 mph
W
|
|
Juneteenth
Jun 19
|
Chance Rain Showers
|
87°F |
12 mph
W
|
|
Friday Night
Jun 19
|
Chance Rain Showers then Partly Cloudy
|
65°F |
5 to 10 mph
NW
|
Nearby Forecasts
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