• Today

    Apr 19

    9°Lo 3°

    Mostly sunny

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      10°
    • UV
      6 - High
    • Cloud
      Cover
      9%
  • Sun

    Apr 20

    17°Lo 4°

    Partly sunny and warmer

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      21°
    • UV
      6 - High
    • Cloud
      Cover
      26%
    more
  • Mon

    Apr 21

    19°Lo 9°

    Times of clouds and sun

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      19°
    • UV
      6 - High
    • Cloud
      Cover
      50%
    more
  • Tue

    Apr 22

    16°Lo 3°

    Cooler with a touch of rain

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      13°
    • UV
      4 - Moderate
    • Cloud
      Cover
      93%
    more
  • Wed

    Apr 23

    10°Lo 1°

    Partly sunny; breezy, colder

    At Risk weather for sinus headaches
    • Hi
      RealFeel
    • UV
      6 - High
    • Cloud
      Cover
      32%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Mostly Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Temp (°C)
RealFeel® -4° -3° 10°
Humidity 80% 80% 79% 76% 70% 64% 61% 57%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
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%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (km/h) 16 WNW 16 WNW 14 WNW 14 WNW 13 NW 13 NNW 13 N 11 NNE
UV Index 0 1 2 4 5 6 6 6
Cloud Cover 15% 0% 0% 0% 4% 7% 10% 11%
Dew Point -1° -1° -1°
Middle Grid line 10 C Middle Grid line 5 C Middle Grid line 0 C

Temperature History - Apr 19

more Historical Weather Data >
  Today Normal Record 4/19/2013
High 14° N/A 19°
Low N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 13:35 of sunlight, then sets at 8:04 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at --:-- with of moolight, then sets at 9:42 AM

Top Story

St. Catharines Weather Report

Long Range Hints Through May

April 18, 2014; 7:23 AM ET

Updated look at the long-range and potential El Nino later this year. more >