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  • Today

    Sep 5

    Sunshine, humid and warmer 30°Lo 20°
  • Sun

    Sep 6

    Sunshine, very warm and humid 30°Lo 21°
    more
  • Mon

    Sep 7

    Partly sunny, warm and humid 30°Lo 21°
    more
  • Tue

    Sep 8

    Clouds and sun 30°Lo 21°
    more
  • Wed

    Sep 9

    Mostly cloudy with a t-storm 27°Lo 16°
    more
< Previous 8 hours Next 8 hours >
  Sat
6am
7am 8am 9am 10am 11am 12pm 1pm
  6am 7am 8am 9am 10am 11am 12pm 1pm
Forecast
Partly Cloudy
Mostly Sunny
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Temp (°C) 17° 17° 20° 21° 19° 21° 23° 25°
RealFeel® 18° 17° 20° 24° 21° 25° 27° 31°
Humidity 93% 93% 90% 70% 78% 70% 69% 70%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Wind (km/h) 2 N 6 N 6 S 0 9 WNW 7 WNW 9 WNW 7 WNW
UV Index 0 0 1 2 3 4 5 5
Cloud Cover 33% 28% 0% 1% 1% 0% 10% 20%
Dew Point 16° 16° 18° 16° 16° 16° 17° 20°
Middle Grid line 30 C Middle Grid line 25 C Middle Grid line 20 C Middle Grid line 15 C

Temperature History - Sep 5

more Historical Weather Data >
  Today Normal Record 9/5/2014
High 30° 23° N/A 30°
Low 20° 13° N/A 20°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:45 AM with 13:00 of sunlight, then sets at 7:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:57 PM with -2:-22 of moolight, then sets at 2:35 PM

St. Catharines Weather Report

Ignacio May Unleash Stormy Conditions in Alaska, British Columbia

September 5, 2015; 9:25 AM ET

Steering winds could take Ignacio, currently a post-tropical cyclone, into the southeastern arm of Alaska or British Columbia during the middle days of next week. more >