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    • Today

      Aug 18

      74° /69°F
      Periods of rain; not as warm
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sat

      Aug 19

      86° /65°
      Clearing and warmer
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Aug 20

      84° /62°
      Mostly sunny and less humid
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Aug 21

      88° /65°
      Partly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Aug 22

      90° /67°
      A t-storm in the afternoon
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    74°Hi RealFeel® 79° Precipitation 67%
    Not as warm with periods of rain from late morning on
    • Winds from the
    • SSE 6 mph
    • Gusts: 8 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 24%
    • Precipitation: 0.36 in
    • Rain: 0.36 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 4.5 hrs
    • Hours of Rain: 4.5 hrs

    Night

    69°Lo RealFeel® 69° Precipitation 65%
    Humid with periods of rain
    • Winds from the
    • S 5 mph
    • Gusts: 8 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 0.23 in
    • Rain: 0.23 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Londonderry Pollen Levels Aug 18

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 8/18/2016
    High 74° 81° N/A 89°
    Low 69° 61° N/A 61°

    Sunrise/Sunset

    • Sunrise: 5:55 AM
    • Sunset: 7:43 PM
    • Duration: 13:48 hr

    Moonrise/Moonset

    • Moonrise: 2:18 AM
    • Moonset: 5:25 PM
    • Duration: 15:07 hr
    Astronomy

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps