10-Day Weather Forecast - Herndon, VA

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  • 82|61°F
    50% Chance of Storms
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    Today

    82°F

    Mostly cloudy with a chance of showers this morning then partly sunny with a chance of showers and thunderstorms this afternoon. Some thunderstorms may produce damaging winds and large hail this afternoon. Highs around 80. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

    Tonight

    61°F

    A chance of showers and thunderstorms in the evening then showers after midnight. Some thunderstorms may be severe with damaging winds and large hail. Lows in the mid 40s. Southwest winds 15 to 20 mph. Gusts up to 35 mph after midnight. Chance of rain near 100 percent.

    Hourly details
  • Day

    56°F

    Showers mainly in the morning. Breezy and much cooler with highs in the upper 40s. Northwest winds 15 to 25 mph with gusts up to 35 mph. Chance of rain near 100 percent.

    Night

    34°F

    Mostly clear. Lows in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph becoming west around 5 mph after midnight.

    Hourly details
  • Day

    57°F

    Partly sunny and breezy. Highs in the mid 50s. South winds 10 to 15 mph with gusts up to 30 mph increasing to 15 to 25 mph with gusts up to 40 mph in the afternoon.

    Night

    45°F

    Partly cloudy. Lows in the lower 40s.

    Hourly details
  • Weekend Weather

  • Day

    59°F

    Mostly sunny. Highs in the mid 50s.

    Night

    38°F

    Mostly cloudy. Lows in the upper 30s.

    Hourly details
  • Day

    57°F

    Mostly cloudy. Highs in the lower 60s.

    Night

    55°F

    Rain. Lows in the lower 50s. Chance of rain 80 percent.

    Hourly details
  • Day

    63°F

    Rain likely. Highs in the lower 60s. Temperature falling into the lower 50s in the afternoon. Chance of rain 70 percent.

    Night

    27°F

    Partly cloudy. Cooler with lows in the upper 20s.

    Hourly details
  • Day

    35°F

    Sunny cooler with highs around 40.

    Night

    27°F

    Clear. Low temperature around 27F. Dew point will be around 8F with an average humidity of 39%. Winds will be 5 mph from the NW.

  • Day

    49°F

    Partly cloudy. High temperature around 49F. Dew point will be around 17F with an average humidity of 37%. Winds will be 4 mph from the S.

    Night

    37°F

    Cloudy. Low temperature around 36F. Dew point will be around 22F with an average humidity of 50%. Winds will be 6 mph from the S.

  • Day

    53°F

    Cloudy. High temperature around 53F. Dew point will be around 31F with an average humidity of 56%. Winds will be 3 mph from the S.

    Night

    40°F

    Cloudy. Low temperature around 40F. Dew point will be around 33F with an average humidity of 66%. Winds will be 2 mph from the S.

  • Day

    57°F

    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 57F. Dew point will be around 36F with an average humidity of 60%. Winds will be 3 mph from the SW.

    Night

    44°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 35F with an average humidity of 60%. Winds will be 3 mph from the SW.