, °F

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    • Tonight

      Sep 29

      63° Lo F
      Breezy and mild with rain
      • Lawn Mowing
        • Lawn Mowing
        • Soil Moisture
        • Field Readiness
        • Composting
      • Lawn Mowing
      • Weather
      • Hours of Precip: 7.5
      • Precip: 77%
      • Hi RealFeel: 69°
    • Fri

      Sep 30

      67° /63°
      Cloudy with showers around
      • Fair
      • for lawn mowing
      • Hours of Precip: 5
      • Precip: 62%
      • Hi RealFeel: 65°
      More
    • Sat

      Oct 1

      75° /61°
      Mostly cloudy, showers around
      • Fair
      • for lawn mowing
      • Hours of Precip: 3.5
      • Precip: 60%
      • Hi RealFeel: 76°
      More
    • Sun

      Oct 2

      77° /60°
      Mostly cloudy
      • Very Good
      • for lawn mowing
      • Hours of Precip: 0
      • Precip: 19%
      • Hi RealFeel: 80°
      More
    • Mon

      Oct 3

      76° /59°
      Mostly sunny and nice
      • Excellent
      • for lawn mowing
      • Hours of Precip: 0
      • Precip: 13%
      • Hi RealFeel: 79°
      More
    Thursday
    7pm
    8pm
    9pm
    10pm
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    12am
    1am
    2am
    Forecast T-storms Rain Cloudy Rain Rain Cloudy Cloudy Cloudy
    Temp (°F) 66° 65° 65° 65° 66° 66° 66° 66°
    RealFeel® 62° 60° 62° 59° 59° 62° 62° 62°
    Wind (mph) 13 E 13 E 13 E 15 E 15 E 15 ENE 15 ENE 18 ENE
    precip
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    Rain
    51%
    53%
    49%
    60%
    53%
    49%
    45%
    43%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 99% 99% 94% 94% 94% 94% 94% 94%
    Humidity 96% 92% 90% 89% 88% 88% 88% 87%
    Dew Point 65° 63° 62° 62° 62° 62° 62° 62°
    Temp °F
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    70° 65°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 69° 74° 85° (1973) 79°
    Low 63° 50° 34° (1978) 69°

    Sunrise/Sunset

    • Sunrise: 7:04 AM
    • Sunset: 6:54 PM
    • Duration: 11:50 hr

    Moonrise/Moonset

    • Moonrise: 5:39 AM
    • Moonset: 6:26 PM
    • Duration: 12:47 hr
    Astronomy

    Herndon Weather Report

    Persistent rain to raise flood risk in part of northeastern US

    September 29, 2016; 6:05 PM ET

    Persistent downpours will raise the flood risk in part of the mid-Atlantic into Friday, while rain will spread over the balance of the northeastern United States into the weekend. More >

    Current Drought Status

    Current Soil Conditions

    Thu. Overnight Freeze

    Thu. Degree Days

    Thu. Evapotranspiration