National Weather Service Forecast for: McLean VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 5:28 pm EDT Jul 28, 2026
 
Tonight

Tonight: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Some of the storms could be severe. Low around 67. Light and variable wind becoming northwest 5 to 9 mph after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Severe
T-Storms
then Mostly
Clear
 Wednesday

Wednesday: Sunny, with a high near 84. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 67. Northwest wind around 11 mph, with gusts as high as 20 mph.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 84. Northwest wind around 11 mph, with gusts as high as 22 mph.
Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 66. Northwest wind 5 to 7 mph.
Partly Cloudy

 Friday

Friday: Sunny, with a high near 87.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 70.
Partly Cloudy

 Saturday

Saturday: Partly sunny, with a high near 89.
Partly Sunny

 Saturday
Night
Saturday Night: A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 20%.
Slight Chance
T-storms
Lo 67 °F Hi 84 °F Lo 67 °F Hi 84 °F Lo 66 °F Hi 87 °F Lo 70 °F Hi 89 °F Lo 71 °F

Hazardous Weather Outlook
Tornado Watch
Severe Thunderstorm Warning
 

Tonight
 
 Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Some of the storms could be severe. Low around 67. Light and variable wind becoming northwest 5 to 9 mph after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
 
 Sunny, with a high near 84. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
 
 Mostly clear, with a low around 67. Northwest wind around 11 mph, with gusts as high as 20 mph.
Thursday
 
 Sunny, with a high near 84. Northwest wind around 11 mph, with gusts as high as 22 mph.
Thursday Night
 
 Partly cloudy, with a low around 66. Northwest wind 5 to 7 mph.
Friday
 
 Sunny, with a high near 87.
Friday Night
 
 Partly cloudy, with a low around 70.
Saturday
 
 Partly sunny, with a high near 89.
Saturday Night
 
 A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 20%.
Sunday
 
 A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 40%.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Monday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Monday Night
 
 Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Tuesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for McLean VA.