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    • Tonight

      Sep 25

      41° Lo
      Mainly clear
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Sep 26

      66° /53°F
      Sunny to partly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Sep 27

      70° /54°
      Periods of rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      69° /55°
      Clouds and sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      64° /55°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Monday
    1am
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    Forecast Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Sunny Sunny
    Temp (°F) 49° 48° 48° 47° 46° 45° 46° 41°
    RealFeel® 51° 50° 50° 49° 48° 48° 48° 43°
    Wind (mph) 2 NW 1 NW 1 NW 1 NW 1 WNW 1 WNW 2 NW 2 NW
    precip
    1am
    2am
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    5am
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    8am
    Rain
    1%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    1am
    2am
    3am
    4am
    5am
    6am
    7am
    8am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 11% 11% 11% 11% 11% 11% 11% 1%
    Humidity 64% 65% 64% 66% 71% 70% 74% 86%
    Dew Point 37° 37° 36° 36° 37° 36° 38° 37°
    Temp °F
    1am
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    50° 45° 40°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/26/2015
    High 66° 68° N/A 67°
    Low 53° 48° N/A 44°

    Sunrise/Sunset

    • Sunrise: 6:38 AM
    • Sunset: 6:34 PM
    • Duration: 11:56 hr

    Moonrise/Moonset

    • Moonrise: 2:08 AM
    • Moonset: 4:26 PM
    • Duration: 14:18 hr
    Astronomy

    Derry Weather Report

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

    September 25, 2016; 9:29 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 >

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps