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    • Tonight

      Jul 20

      70° Lo F
      A thunderstorm in spots late
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Fri

      Jul 21

      92° /67°
      Partly sunny and hot
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Jul 22

      86° /65°
      Periods of clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Jul 23

      73° /60°
      Cooler; a heavy p.m. t-storm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Jul 24

      76° /61°
      Thundershower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    91°Hi RealFeel® 97° Precipitation 1%
    Hot and humid with periods of sun and clouds
    • Winds from the
    • WSW 7 mph
    • Gusts: 15 mph
    • Max UV Index: 7 (High)
    • Thunderstorms: 24%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    70°Lo RealFeel® 70° Precipitation 42%
    Mainly clear and humid; a shower or thunderstorm in spots late
    • Winds from the
    • WSW 6 mph
    • Gusts: 8 mph
    • Max UV Index: N/A
    • Thunderstorms: 60%
    • Precipitation: 0.08 in
    • Rain: 0.08 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Somerville Pollen Levels Jul 20

    • 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 7/20/2016
    High 91° 82° 99° (1991) 84°
    Low 70° 66° 54° (1890) 65°

    Sunrise/Sunset

    • Sunrise: 5:25 AM
    • Sunset: 8:16 PM
    • Duration: 14:51 hr

    Moonrise/Moonset

    • Moonrise: 2:38 AM
    • Moonset: 5:33 PM
    • Duration: 14:55 hr
    Astronomy

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps