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Personalized Forecasts

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    • Today

      Sep 30

      17° /13°
      Rain and drizzle
      • Lawn Mowing
        • Lawn Mowing
        • Soil Moisture
        • Composting
      • Poor
      • for lawn mowing
      • Hours of Precip: 7.5
      • Precip: 80%
      • Hi RealFeel: 17°
      More
    • Sat

      Oct 1

      18° /11°
      Some rain and a thunderstorm
      • Poor
      • for lawn mowing
      • Hours of Precip: 5
      • Precip: 56%
      • Hi RealFeel: 17°
      More
    • Sun

      Oct 2

      19° /12°C
      Mostly cloudy, brief showers
      • Fair
      • for lawn mowing
      • Hours of Precip: 3.5
      • Precip: 71%
      • Hi RealFeel: 19°
    • Mon

      Oct 3

      19° /12°
      Some sun returning, a shower
      • Very Good
      • for lawn mowing
      • Hours of Precip: 1
      • Precip: 40%
      • Hi RealFeel: 20°
      More
    • Tue

      Oct 4

      22° /14°
      Partly sunny
      • Excellent
      • for lawn mowing
      • Hours of Precip: 0
      • Precip: 25%
      • Hi RealFeel: 22°
      More

    Day

    19°Hi RealFeel® 19° Precipitation 71%
    Mostly cloudy with brief showers
    • WSW 7 km/h
    • Gusts: 13 km/h
    • Max UV Index: 2 (Low)
    • Thunderstorms: 20%
    • Precipitation: 6 mm
    • Rain: 6 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Night

    12°Lo RealFeel® 11° Precipitation 25%
    Partly cloudy
    • NW 9 km/h
    • Gusts: 15 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 10/2/2015
    High 19° 18° 30° (1971) 12°
    Low 12° (2003)

    Sunrise/Sunset

    • Sunrise: 7:29 AM
    • Sunset: 7:08 PM
    • Duration: 11:39 hr

    Moonrise/Moonset

    • Moonrise: 8:53 AM
    • Moonset: 8:14 PM
    • Duration: 11:21 hr
    Astronomy

    Sarnia Weather Report

    Weekly update signals a mild October for a majority of Canada

    September 30, 2016; 12:09 PM ET

    Latest clues to the long range into October. More >