National Weather Service Forecast for: Ashburn VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 2:23 pm EDT Jul 28, 2026
 
This
Afternoon
This Afternoon: Showers and possibly a thunderstorm before 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could be severe. High near 85. West wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Severe
T-Storms
 Tonight

Tonight: Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe. Mostly cloudy during the early evening, then gradual clearing, with a low around 67. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Severe
T-Storms
then Clear
 Wednesday

Wednesday: Sunny, with a high near 83. Northwest wind 13 to 16 mph, with gusts as high as 26 mph.
Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 66. Northwest wind 11 to 13 mph, with gusts as high as 22 mph.
Partly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 83. Northwest wind 14 to 16 mph, with gusts as high as 25 mph.
Mostly Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 65.
Mostly Clear

 Friday

Friday: Sunny, with a high near 86.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 66.
Partly Cloudy

 Saturday

Saturday: Partly sunny, with a high near 87.
Partly Sunny
Hi 85 °F Lo 67 °F Hi 83 °F Lo 66 °F Hi 83 °F Lo 65 °F Hi 86 °F Lo 66 °F Hi 87 °F

Severe Thunderstorm Watch
Hazardous Weather Outlook
 

This Afternoon
 
 Showers and possibly a thunderstorm before 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could be severe. High near 85. West wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe. Mostly cloudy during the early evening, then gradual clearing, with a low around 67. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 Sunny, with a high near 83. Northwest wind 13 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
 
 Partly cloudy, with a low around 66. Northwest wind 11 to 13 mph, with gusts as high as 22 mph.
Thursday
 
 Mostly sunny, with a high near 83. Northwest wind 14 to 16 mph, with gusts as high as 25 mph.
Thursday Night
 
 Mostly clear, with a low around 65.
Friday
 
 Sunny, with a high near 86.
Friday Night
 
 Partly cloudy, with a low around 66.
Saturday
 
 Partly sunny, with a high near 87.
Saturday Night
 
 A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 20%.
Sunday
 
 A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.
Monday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Monday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Ashburn VA.