National Weather Service Forecast for: Ashburn VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 7:34 pm EDT Sep 12, 2026
 
Tonight

Tonight: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Patchy fog after 5am. Low around 68. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and
Patchy Fog

 Sunday

Sunday: Showers and thunderstorms likely before 8am, then a slight chance of showers between 8am and 9am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely and
Patchy Fog
then Partly
Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 67. Calm wind becoming northwest around 6 mph after midnight.
Partly Cloudy


 Monday

Monday: Partly sunny, then gradually becoming sunny, with a high near 79. North wind 11 to 13 mph, with gusts as high as 22 mph.
Becoming
Sunny

 Monday
Night
Monday Night: Mostly clear, with a low around 53. North wind 3 to 6 mph.
Mostly Clear


 Tuesday

Tuesday: Sunny, with a high near 80.
Sunny


 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 57.
Mostly Clear


 Wednesday

Wednesday: Sunny, with a high near 82.
Sunny


 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 61.
Mostly Clear
Lo 68 °F Hi 86 °F Lo 67 °F Hi 79 °F Lo 53 °F Hi 80 °F Lo 57 °F Hi 82 °F Lo 61 °F

Hazardous Weather Outlook
 

Tonight
 
 Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Patchy fog after 5am. Low around 68. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
 
 Showers and thunderstorms likely before 8am, then a slight chance of showers between 8am and 9am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 Partly cloudy, with a low around 67. Calm wind becoming northwest around 6 mph after midnight.
Monday
 
 Partly sunny, then gradually becoming sunny, with a high near 79. North wind 11 to 13 mph, with gusts as high as 22 mph.
Monday Night
 
 Mostly clear, with a low around 53. North wind 3 to 6 mph.
Tuesday
 
 Sunny, with a high near 80.
Tuesday Night
 
 Mostly clear, with a low around 57.
Wednesday
 
 Sunny, with a high near 82.
Wednesday Night
 
 Mostly clear, with a low around 61.
Thursday
 
 Sunny, with a high near 85.
Thursday Night
 
 Mostly clear, with a low around 64.
Friday
 
 A chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Friday Night
 
 A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Saturday
 
 A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Ashburn VA.