Reston, VA (20191)

Today

Mostly cloudy skies early then heavy thunderstorms developing this afternoon. A few storms may be severe. High 72F. Winds SW at 15 to 25 mph. Chance of rain 90%..

Tonight

Partly cloudy. Gusty winds diminishing after midnight. Low 46F. Winds WNW at 20 to 30 mph. Winds could occasionally gust over 40 mph.