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    • Tonight

      Dec 7

      29° Lo F
      Partly cloudy; fog late
      • Stargazing
      • Weather
      • Cloud Cover: 50%
      • Precip: 0%
      • Hours of Precip: 1
    • Thu

      Dec 8

      42° /27°
      Areas of fog in the morning
      • Fair
      • for stargazing
      • Cloud Cover: 26%
      • Precip: 5%
      • Hours of Precip: 0
      More
    • Fri

      Dec 9

      36° /18°
      Partly sunny and windy
      • Good
      • for stargazing
      • Cloud Cover: 8%
      • Precip: 4%
      • Hours of Precip: 0
      More
    • Sat

      Dec 10

      31° /14°
      Mostly sunny
      • Fair
      • for stargazing
      • Cloud Cover: 18%
      • Precip: 3%
      • Hours of Precip: 0
      More
    • Sun

      Dec 11

      32° /23°
      Some sun, then clouds
      • Poor
      • for stargazing
      • Cloud Cover: 99%
      • Precip: 65%
      • Hours of Precip: 4
      More

    Day

    40°Hi RealFeel® 43° Precipitation 55%
    A morning rain or snow shower in spots; otherwise, cloudy
    • W 2 mph
    • Gusts: 7 mph
    • Max UV Index: 0 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0.04 in
    • Rain: 0.02 in
    • Snow: 0.1 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Night

    29°Lo RealFeel® 27° Precipitation 0%
    Partly cloudy; areas of fog late
    • WSW 5 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • 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 12/7/2015
    High 40° 42° N/A 57°
    Low 29° 25° N/A 26°

    Sunrise/Sunset

    • Sunrise: 7:02 AM
    • Sunset: 4:12 PM
    • Duration: 9:10 hr

    Moonrise/Moonset

    • Moonrise: 12:23 PM
    • Moonset: 12:17 AM
    • Duration: 11:54 hr
    Astronomy

    Solunar Information for Chelmsford, MA

    Wed, Dec 7
    First
    Wed, Dec 14
    Full
    Wed, Dec 21
    Last
    Thu, Dec 29
    New

    Wed. Stargazing