Flood Watch FLOOD WATCH - Fairfax City

Regional Radar Regional Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.
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Updated: @ 09-Jul-2026 2:25pm  
Summary / Temperature Wind Rain Outlook
Mostly cloudy Mostly cloudy
Currently: 88.0, Max: 88.0, Min: 74.7 88°F
Warmer 0.9°F than last hour.

Warm

Feels like: 106°F

  Today Yesterday
High: 88°F
2:14pm
86.5°F
5:16pm
Low: 74.7°F
2:22am
74.7°F
3:18am
 Wind from W W
0.9
Gust:
2.9 mph
0 Bft - Calm
Today: 8.1 mph 1:11pm
Gust Month: 19.0 mph July 04
Rain Today: 0.1 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
This Month: 0.84 in
Season Total: 13.82 in
5 rain days in July.
Tonight

Tonight: Showers And Thunderstorms Likely then Partly Cloudy
Showers And T-Storms Likely then Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 79 % Decreased 1.5% since last hour.
Dew Point: 80.6°F Increased 0.2°F since last hour.
Barometer: 29.85 inHg Falling 0.02  inHg/hr
Baro Trend: Steady
Sunrise: 5:56am
Sunset: 8:35pm
Moonrise: 1:10am
Moonset: 3:46pm
Waning Crescent
Waning Crescent, Moon at 23 days in cycle
29%
Illuminated
UV Index Solar Radiation
   5.1     Medium 
High: 8.0 @ 1:22pm
1034.0 W/m2 (99 %)
High: 1148 @  1:18pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Showers And Thunderstorms Likely
Showers And T-Storms Likely

Hi 89 °F
NWS forecast: Showers and thunderstorms likely. Mostly cloudy, with a high near 89. Southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Davis VP+ forecast: Mostly cloudy with little temperature change. Precipitation likely.
 
Tonight

Tonight: Showers And Thunderstorms Likely then Partly Cloudy
Showers And T-Storms Likely then Partly Cloudy

Lo 69 °F
NWS forecast: Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 11pm. Partly cloudy, with a low around 69. West wind 0 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.