Flood Watch FLOOD WATCH - Fairfax

Regional Radar Regional Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.
spacer
Updated: @ 02-Aug-2026 4:25pm  
Summary / Temperature Wind Rain Outlook
Overcast Overcast
Currently: [actual_th0_temp_f], Max: 79.9, Min: 75.9 0°F
Colder 78.9°F than last hour.

Very Cold

Feels like: -0°F

  Today Yesterday
High: 79.9°F
11:28am
88.9°F
2:46pm
Low: 75.9°F
8:00am
70.9°F
8:06am
 Calm [actual_wind0_dir_en]
0
Gust:
0 mph
0 Bft - Calm
Today: 14.1 mph 9:51am
Gust Month: 16.1 mph August 01
Rain Today: 0.19 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
This Month: 0.02 in
Season Total: 3.36 in
0 day since last rain.
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: [actual_th0_hum_rel] % Decreased 86.5% since last hour.
Dew Point: 0°F Decreased 74.6°F since last hour.
Barometer: 29.71 inHg Rising 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 6:11am
Sunset: 8:19pm
Moonset: 10:09am
Moonrise: 10:17pm
Waning Gibbous
Waning Gibbous, Moon at 18 days in cycle
82%
Illuminated
UV Index Forecast UV Index Forecast
02-Aug-2026
9.0     Very High 
03-Aug-2026
8.9     Very High 
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Showers And Thunderstorms
Showers And T-Storms

Hi 83 °F
NWS forecast: Showers and thunderstorms. Cloudy, with a high near 83. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Davis VP+ forecast: Mostly cloudy with little temperature change. Precipitation continuing. Windy with possible wind shift to the W, NW, or N.
 
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms

Lo 72 °F
NWS forecast: Showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then patchy fog and showers and thunderstorms likely between midnight and 1am, then patchy fog and a chance of showers and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms between 2am and 3am, then a slight chance of showers and thunderstorms between 3am and 4am. Cloudy, with a low around 72. South wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.