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    • Today

      Sep 27

      20° /10°
      A shower this afternoon
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 19°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Wed

      Sep 28

      18° /14°
      Rather cloudy with showers
      • Neutral
      • weather for asthma
      • Hi RealFeel: 15°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    • Thu

      Sep 29

      18° /14°C
      Mostly cloudy, showers around
      • Neutral
      • weather for asthma
      • Hi RealFeel: 15°
      • UV: 2 - Low
      • Air Qual.: Good
    • Fri

      Sep 30

      18° /14°
      Breezy with periods of rain
      • At Risk
      • weather for asthma
      • Hi RealFeel: 15°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    • Sat

      Oct 1

      19° /12°
      Cloudy with a few showers
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 20°
      • UV: 2 - Low
      • Air Qual.: Good
      More

    Day

    18°Hi RealFeel® 15° Precipitation 63%
    Mostly cloudy and breezy with a couple of showers
    • ENE 28 km/h
    • Gusts: 48 km/h
    • Max UV Index: 1 (Low)
    • Thunderstorms: 20%
    • Precipitation: 3 mm
    • Rain: 3 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Night

    14°Lo RealFeel® 10° Precipitation 70%
    Periods of rain
    • ENE 18 km/h
    • Gusts: 33 km/h
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 13 mm
    • Rain: 13 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 8 hrs
    • Hours of Rain: 8 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 18° 19° 28° (1986) 22°
    Low 15° 10° -1° (1951) 15°

    Sunrise/Sunset

    • Sunrise: 7:25 AM
    • Sunset: 7:13 PM
    • Duration: 11:48 hr

    Moonrise/Moonset

    • Moonrise: 5:57 AM
    • Moonset: 6:48 PM
    • Duration: 12:51 hr
    Astronomy

    Sarnia Weather Report

    October to start out mild in the East

    September 27, 2016; 12:08 PM ET

    Some needed rainfall for southern Ontario this week. More >