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    • Tonight

      Sep 27

      10° Lo C
      Considerable cloudiness
      • Outdoor Barbecue
      • Weather
      • Precip: 35%
      • Hi RealFeel: 21°
      • Wind Speed: 19 k/h
    • Wed

      Sep 28

      19° /15°
      Rather cloudy with showers
      • Fair
      • for an outdoor bbq
      • Precip: 71%
      • Hi RealFeel: 16°
      • Wind Speed: 22 k/h
      More
    • Thu

      Sep 29

      18° /14°
      Mostly cloudy, showers around
      • Fair
      • for an outdoor bbq
      • Precip: 63%
      • Hi RealFeel: 15°
      • Wind Speed: 28 k/h
      More
    • Fri

      Sep 30

      18° /15°
      Breezy with periods of rain
      • Poor
      • for an outdoor bbq
      • Precip: 72%
      • Hi RealFeel: 15°
      • Wind Speed: 33 k/h
      More
    • Sat

      Oct 1

      20° /12°
      Cloudy with a few showers
      • Good
      • for an outdoor bbq
      • Precip: 65%
      • Hi RealFeel: 20°
      • Wind Speed: 9 k/h
      More

    Day

    20°Hi RealFeel® 21° Precipitation 35%
    Breezy this morning; otherwise, some sun, then increasing clouds
    • SW 18 km/h
    • Gusts: 39 km/h
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 20%
    • Precipitation: 0 mm
    • Rain: 0 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    10°Lo RealFeel® 10° Precipitation 10%
    Considerable cloudiness
    • SSE 7 km/h
    • Gusts: 17 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 9/27/2015
    High 20° 20° 32° (1998) 24°
    Low 10° 10° (1991) 12°

    Sunrise/Sunset

    • Sunrise: 7:23 AM
    • Sunset: 7:16 PM
    • Duration: 11:53 hr

    Moonrise/Moonset

    • Moonrise: 3:55 AM
    • Moonset: 5:47 PM
    • Duration: 13:52 hr
    Astronomy

    Sarnia Weather Report

    October to start mild in the East

    September 27, 2016; 12:08 PM ET

    Some needed rainfall for southern Ontario this week. More >