• Early AM

    Sep 19

    Lo 4°

    Clear

    Home Energy Efficiency Weather
    • Avg
      RealFeel
    • Hi
      RealFeel
      13°
    • Wind
      Speed
      6 k/h
    more
  • Today

    Sep 19

    19°Lo 11°

    Mostly sunny and warmer

    Poor for home energy
    • Avg
      RealFeel
      14°
    • Hi
      RealFeel
      19°
    • Wind
      Speed
      10 k/h
    more
  • Sat

    Sep 20

    23°Lo 15°

    A strong afternoon t-storm

    Poor for home energy
    • Avg
      RealFeel
      16°
    • Hi
      RealFeel
      21°
    • Wind
      Speed
      19 k/h
  • Sun

    Sep 21

    19°Lo 7°

    Mostly cloudy with a shower

    Poor for home energy
    • Avg
      RealFeel
      11°
    • Hi
      RealFeel
      18°
    • Wind
      Speed
      21 k/h
    more
  • Mon

    Sep 22

    16°Lo 8°

    Cool with clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      11°
    • Hi
      RealFeel
      15°
    • Wind
      Speed
      15 k/h
    more
Next Previous
Hi 23° RealFeel® 21° Precipitation 56%

Day

N

E

S

W

  • SSW 19 km/h
  • Gusts: 34 km/h

Some sunshine giving way to clouds and breezy; a strong thunderstorm late in the afternoon

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 91%
  • Precipitation: 6 mm
  • Rain: 6 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 15° RealFeel® 12° Precipitation 67%

Night

N

E

S

W

  • WSW 13 km/h
  • Gusts: 21 km/h

Cloudy with a couple of showers and a thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 17 mm
  • Rain: 17 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 23° 20° N/A 28°
Low 15° 10° N/A 18°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:14 AM with 12:17 of sunlight, then sets at 7:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:49 AM with 13:48 of moolight, then sets at 5:37 PM

Top Story

Sarnia Weather Report

Cold Snap, Widespread Frost Looms for Northeast

September 19, 2014; 2:07 AM ET

The chilliest air of the season so far will settle over much of the Northeast into Friday and will bring frost to a large area. more >