• Early AM

    Jun 19

    Lo 12°

    Clear

    Asthma Weather
    • Hi
      RealFeel
      16°
    • UV
      7 - High
    • Air Qual.
      Good
    more
  • Today

    Jun 19

    21°Lo 10°

    Mostly sunny and beautiful

    Beneficial weather for asthma
    • Hi
      RealFeel
      22°
    • UV
      8 - Very High
    • Air Qual.
      Good
  • Thu

    Jun 20

    24°Lo 12°

    Partly sunny

    Beneficial weather for asthma
    • Hi
      RealFeel
      27°
    • UV
      7 - High
    • Air Qual.
      Good
    more
  • Fri

    Jun 21

    26°Lo 15°

    Partly sunny and delightful

    Beneficial weather for asthma
    • Hi
      RealFeel
      29°
    • UV
      7 - High
    • Cloud
      Cover
      41%
    more
  • Sat

    Jun 22

    29°Lo 19°

    A thunderstorm possible

    Beneficial weather for asthma
    • Hi
      RealFeel
      29°
    • UV
      6 - High
    • Cloud
      Cover
      65%
    more
Next Previous
Next 8 hours >
  Wed
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Temp (°C) 14° 14° 13° 12° 12° 12° 12° 13°
RealFeel® 11° 10° 10° 10° 11°
Humidity 78% 78% 82% 84% 85% 82% 81% 76%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (km/h) 16 NNW 18 NNW 18 NNW 16 NNW 13 N 11 NNE 11 NE 13 NE
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 21% 18% 15% 12% 9% 10% 10% 10%
Dew Point 11° 10° 10°
Middle Grid line 15 C Middle Grid line 10 C

Temperature History - Jun 19

more Historical Weather Data >
  Today Normal Record 6/19/2012
High 21° 25° N/A 31°
Low 10° 14° N/A 23°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:36 AM with 15:23 of sunlight, then sets at 8:59 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:35 PM with 10:50 of moolight, then sets at 2:25 AM

Top Story

St. Catharines Weather Report

Dangerous Thunderstorms for the Prairies

June 18, 2013; 3:19 PM ET

Large storm clashing with warmth and higher humidity will lead to heavy rainfall and locally severe thunderstorms over the Prairies the next couple of days. more >