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  • Today

    Sep 18

    Clouds giving way to some sun 15°Lo 6°
  • Fri

    Sep 19

    Sunshine; nice in the p.m. 18°Lo 12°
    more
  • Sat

    Sep 20

    Showers late in the afternoon 24°Lo 17°
    more
  • Sun

    Sep 21

    Mostly cloudy, showers around 22°Lo 10°
    more
  • Mon

    Sep 22

    Mostly cloudy and cooler 16°Lo 9°
    more
< Previous 8 hours Next 8 hours >
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Forecast
Cloudy
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Temp (°C) 14° 15° 15° 15° 15° 14° 14° 13°
RealFeel® 12° 13° 13° 14° 14° 13° 11° 10°
Humidity 71% 67% 64% 62% 59% 59% 59% 61%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Rain
 
7%
 
5%
 
0%
 
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0%
Snow
 
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Ice
 
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  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Wind (km/h) 21 N 19 N 18 N 16 N 14 N 13 NNE 13 NNE 11 NNE
UV Index 2 3 3 3 2 1 0 0
Cloud Cover 92% 100% 74% 60% 54% 51% 46% 40%
Dew Point
Middle Grid line 20 C Middle Grid line 15 C Middle Grid line 10 C

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 15° 21° N/A 20°
Low 11° N/A 11°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:00 AM with 12:22 of sunlight, then sets at 7:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:44 AM with 14:33 of moolight, then sets at 4:17 PM

Top Story

St. Catharines Weather Report

Long Winter Nights, Dry Air Increase Chance to View Aurora

September 18, 2014; 8:05 AM ET

Igniting across Northern skies, ghostly rivers of light dance overhead each year, emitting vibrant shades of green, blue, pink, red and violet. more >