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  • Today

    Sep 17

    Decreasing clouds 20°Lo 10°
    more
  • Thu

    Sep 18

    Mostly cloudy and cool 16°Lo 6°
  • Fri

    Sep 19

    Mostly sunny and pleasant 18°Lo 12°
    more
  • Sat

    Sep 20

    Partly sunny and breezy 22°Lo 18°
    more
  • Sun

    Sep 21

    Mostly cloudy, showers around 23°Lo 11°
    more
< Previous 8 hours Next 8 hours >
  Thu
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Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Clear
Temp (°C) 15° 15° 15° 16° 15° 14° 13° 12°
RealFeel® 14° 14° 14° 14° 12° 12° 10°
Humidity 67% 63% 60% 55% 58% 57% 61% 65%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
13%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (km/h) 18 NNE 16 NNE 16 NNE 14 NNE 14 NNE 13 NE 11 NE 11 NE
UV Index 3 3 3 2 1 0 0 0
Cloud Cover 76% 76% 76% 76% 76% 76% 76% 20%
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 16° 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 17, 2014; 2:10 PM ET

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