Herndon, Virginia | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Cloudy
    65°
    Sunday 5/5
    Forecast night icon
    65°
    Cloudy
    Hourly
    Night Details
    Cloudy. Areas of fog. Lows in the lower 60s. South winds around 5 mph.
  • Forecast day icon
    Monday
    40% Chance of Storms
    74°
    Forecast night icon
    Night
    Thunderstorms
    64°
    Monday 5/6
    Day
    74°
    40% Chance of Storms
    Forecast day icon
    Night
    64°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Cloudy. Areas of fog in the morning. Scattered showers with a chance of thunderstorms in the afternoon. Visibility one quarter mile or less at times in the morning. Highs in the upper 70s. South winds around 5 mph. Chance of rain 40 percent.
    Night Details
    Showers with a chance of thunderstorms. Patchy fog. Lows in the mid 60s. South winds around 5 mph. Chance of rain 90 percent.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    76°
    Forecast night icon
    Night
    50% Chance of Storms
    67°
    Tuesday 5/7
    Day
    76°
    50% Chance of Storms
    Forecast day icon
    Night
    67°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Northwest winds around 5 mph. Chance of rain 50 percent.
    Night Details
    Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. Southeast winds around 5 mph becoming southwest around 5 mph after midnight. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    82°
    Forecast night icon
    Night
    50% Chance of Storms
    67°
    Wednesday 5/8
    Day
    82°
    Mostly Sunny
    Forecast day icon
    Night
    67°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 80s.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 50 percent.
  • Forecast day icon
    Thursday
    80% Chance of Storms
    80°
    Forecast night icon
    Night
    50% Chance of Storms
    65°
    Thursday 5/9
    Day
    80°
    80% Chance of Storms
    Forecast day icon
    Night
    65°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers with a chance of thunderstorms. Highs around 80. Chance of rain 80 percent.
    Night Details
    Partly cloudy with a chance of showers and thunderstorms. Lows around 60. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    40% Chance Rain Showers
    72°
    Forecast night icon
    Night
    40% Chance Rain Showers
    58°
    Friday 5/10
    Day
    72°
    40% Chance Rain Showers
    Forecast day icon
    Night
    58°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. Highs in the lower 70s. Chance of rain 40 percent.
    Night Details
    Partly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 40 percent.
  • Forecast day icon
    Saturday
    Mostly Sunny
    64°
    Forecast night icon
    Night
    30% Chance Rain Showers
    54°
    Saturday 5/11
    Day
    64°
    Mostly Sunny
    Forecast day icon
    Night
    54°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 60s.
    Night Details
    Partly cloudy with a 30 percent chance of showers. Lows in the lower 50s.
  • Forecast day icon
    Sunday
    40% Chance Rain Showers
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    53°
    Sunday 5/12
    Day
    65°
    40% Chance Rain Showers
    Forecast day icon
    Night
    53°
    30% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers. Highs around 70. Chance of rain 40 percent.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 53F. Dew point will be around 51F with an average humidity of 81%. Winds will be 4 mph from the W.
  • Forecast day icon
    Monday
    Sunny
    68°
    Forecast night icon
    Night
    Mostly Clear
    56°
    Monday 5/13
    Day
    68°
    Sunny
    Forecast day icon
    Night
    56°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 68F. Dew point will be around 52F with an average humidity of 68%. Winds will be 5 mph from the W.
    Night Details
    Mostly clear. Low temperature around 56F. Dew point will be around 52F with an average humidity of 77%. Winds will be 4 mph from the W.
  • Forecast day icon
    Tuesday
    Sunny
    71°
    Forecast night icon
    Night
    30% Chance of Rain
    58°
    Tuesday 5/14
    Day
    71°
    Sunny
    Forecast day icon
    Night
    58°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 71F. Dew point will be around 55F with an average humidity of 69%. Winds will be 4 mph from the W.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 58F. Dew point will be around 56F with an average humidity of 80%. Winds will be 3 mph from the W.