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Personalized Forecasts

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    • Today

      Dec 12

      -3° /-11°
      Snow at times, 1-3 cm
      • Poor
      • for stargazing
      • Cloud Cover: 95%
      • Precip: 45%
      • Hours of Precip: 8
      More
    • Wed

      Dec 13

      -6° /-13°
      Partly sunny and very cold
      • Poor
      • for stargazing
      • Cloud Cover: 80%
      • Precip: 4%
      • Hours of Precip: 0
      More
    • Thu

      Dec 14

      -7° /-11°
      Cloudy and very cold
      • Poor
      • for stargazing
      • Cloud Cover: 61%
      • Precip: 21%
      • Hours of Precip: 0
      More
    • Fri

      Dec 15

      -4° /-9°
      Snow, 1-2 cm
      • Fair
      • for stargazing
      • Cloud Cover: 57%
      • Precip: 55%
      • Hours of Precip: 6
      More
    • Sat

      Dec 16

      -3° /-8°C
      Clouds giving way to some sun
      • Poor
      • for stargazing
      • Cloud Cover: 28%
      • Precip: 0%
      • Hours of Precip: 0

    Day

    -3°Hi RealFeel® -7° Precipitation 25%
    A thick cloud cover in the morning, then times of clouds and sun in the afternoon
    • Winds from the
    • NW 11 km/h
    • Gusts: 18 km/h
    • Max UV Index: 1 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0 mm
    • Rain: 0 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    -8°Lo RealFeel® -14° Precipitation 0%
    Clear to partly cloudy
    • Winds from the
    • N 13 km/h
    • Gusts: 18 km/h
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 mm
    • Rain: 0 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/16/2016
    High -3° 15° (1984) -6°
    Low -9° -5° -19° (1876) -12°

    Sunrise/Sunset

    • Sunrise: 7:45 AM
    • Sunset: 4:41 PM
    • Duration: 8:56 hr

    Moonrise/Moonset

    • Moonrise: 5:58 AM
    • Moonset: 4:00 PM
    • Duration: 10:02 hr
    Astronomy

    Solunar Information for Thornhill, Canada

    Mon, Dec 18
    New
    Tue, Dec 26
    First
    Tue, Jan 2
    Full
    Mon, Jan 8
    Last