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Personalized Forecasts

Featured Forecast

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    My Recent Locations

    • Today

      Sep 25

      71° /52°F
      Partly sunny and pleasant
      • Excellent
      • for running
      • Precip: 2%
      • Hours of Precip: 0
      • Wind Gust: 10 mph
    • Mon

      Sep 26

      72° /59°
      Increasing cloudiness
      • Excellent
      • for running
      • Precip: 25%
      • Hours of Precip: 7
      • Wind Gust: 12 mph
      More
    • Tue

      Sep 27

      72° /51°
      A bit of a.m. rain; clearing
      • Very Good
      • for running
      • Precip: 55%
      • Hours of Precip: 0.5
      • Wind Gust: 8 mph
      More
    • Wed

      Sep 28

      74° /61°
      Chance of a little p.m. rain
      • Excellent
      • for running
      • Precip: 30%
      • Hours of Precip: 0
      • Wind Gust: 9 mph
      More
    • Thu

      Sep 29

      69° /59°
      Mostly cloudy, a little rain
      • Very Good
      • for running
      • Precip: 55%
      • Hours of Precip: 7
      • Wind Gust: 13 mph
      More

    Day

    71°Hi RealFeel® 75° Precipitation 2%
    Partly sunny and pleasant
    • E 5 mph
    • Gusts: 10 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 3%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    52°Lo RealFeel® 52° Precipitation 14%
    Mainly clear
    • SSE 4 mph
    • Gusts: 6 mph
    • Max UV Index: N/A
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 71° 77° N/A 72°
    Low 52° 56° N/A 57°

    Sunrise/Sunset

    • Sunrise: 6:59 AM
    • Sunset: 6:59 PM
    • Duration: 12:00 hr

    Moonrise/Moonset

    • Moonrise: 1:39 AM
    • Moonset: 4:00 PM
    • Duration: 14:21 hr
    Astronomy

    Greenbelt Weather Report

    Crisp fall air to bring first frost of season to parts of northeastern US

    September 25, 2016; 2:29 PM ET

    Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region to end this weekend. More >