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Town of Herndon, VAHerndon, VA 7-Day Night Weather Forecast
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Herndon, VA Weather Forecast
Herndon, VA Weather Forecast Date: 755 PM EDT Wed Sep 16 2026
The area/counties/county of: Fairfax, including the cities of: Burke, Fairfax Station, Reston, Annandale, Chantilly, Langley, and Mclean.or toggle through each period.
Tonight... Mostly clear this evening, then becoming partly cloudy. Lows in the mid 60s. South winds around 5 mph.
Thursday... Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. South winds around 5 mph. Chance of rain 50%.
Thursday Night... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the lower 70s. Southwest winds around 5 mph, becoming west after midnight. Chance of rain 50%.
Friday... Mostly sunny. Highs in the mid 80s. North winds 5 to 10 mph.
Friday Night... Partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph.
Saturday... Mostly sunny. Highs in the lower 80s.
Saturday Night... Mostly cloudy. Lows in the mid 60s.
Sunday... Showers likely with a chance of thunderstorms. Highs in the mid 80s. Chance of rain 60%.
Sunday Night... Showers likely. Lows in the mid 60s. Chance of rain 60%.
Monday... Mostly cloudy with a 40% chance of showers. Highs in the upper 70s.
Monday Night... Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50%.
Tuesday... Mostly cloudy with a chance of showers. Highs in the mid 70s. Chance of rain 50%.
Tuesday Night... Mostly cloudy with a 50% chance of showers. Lows in the lower 60s.
POP = Probability of Precipitation
Herndon Radar Loop
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