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St. Catharines, Ontario

29°F
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St. Catharines

Ontario

29°
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St. Catharines, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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4 AM

27°
RealFeel® 26°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

WindSE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity95%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover73%

Visibility10 mi

Cloud Ceiling17800 ft

5 AM

29°
RealFeel® 28°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

WindSE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity96%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

6 AM

30°
RealFeel® 28°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

WindESE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity97%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling13200 ft

7 AM

32°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™30°

WindE 6 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts7 mph

Humidity91%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling11700 ft

8 AM

35°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™34°

WindE 6 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts7 mph

Humidity83%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10200 ft

9 AM

39°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™35°

WindE 6 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts8 mph

Humidity77%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10200 ft

10 AM

42°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 6%
Chevron down
Intermittent clouds

RealFeel Shade™38°

WindE 7 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts9 mph

Humidity72%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10200 ft

11 AM

45°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 5%
Chevron down
Intermittent clouds

RealFeel Shade™41°

WindESE 7 mph

Air QualityFair

Max UV Index2.6 (Moderate)

Wind Gusts10 mph

Humidity68%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10200 ft

12 PM

47°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 5%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindESE 8 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts10 mph

Humidity65%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling8500 ft

1 PM

48°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 8%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindE 8 mph

Air QualityFair

Max UV Index3.2 (Moderate)

Wind Gusts10 mph

Humidity68%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6700 ft

2 PM

47°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 65%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™36°

WindE 13 mph

Air QualityFair

Max UV Index2.4 (Low)

Wind Gusts17 mph

Humidity72%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

3 PM

49°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 65%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™38°

WindESE 14 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts16 mph

Humidity72%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

4 PM

51°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 49%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindSE 14 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts17 mph

Humidity72%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6100 ft

5 PM

52°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 24%
Chevron down
Intermittent clouds

RealFeel Shade™44°

WindSSE 15 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts20 mph

Humidity73%

Indoor Humidity41% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6600 ft

6 PM

56°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 24%
Chevron down
Intermittent clouds

RealFeel Shade™49°

WindS 16 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts21 mph

Humidity67%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7000 ft

7 PM

59°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 21%
Chevron down
Intermittent clouds

RealFeel Shade™53°

WindS 17 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts22 mph

Humidity61%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling9000 ft

8 PM

58°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindSSW 15 mph

Air QualityFair

Wind Gusts18 mph

Humidity67%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling10200 ft

9 PM

56°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindSSW 16 mph

Air QualityFair

Wind Gusts20 mph

Humidity76%

Indoor Humidity50% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling11500 ft

10 PM

55°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindSSW 18 mph

Air QualityFair

Wind Gusts23 mph

Humidity84%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling12900 ft

11 PM

53°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindSSW 20 mph

Air QualityFair

Wind Gusts24 mph

Humidity94%

Indoor Humidity54% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling14200 ft

Hourly Weather Forecast for St. Catharines

AccuWeather's hourly forecast for St. Catharines provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 27° with a RealFeel® of 26°, intermittent clouds with a 7% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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World North America Canada Ontario St. Catharines

Weather Near St. Catharines:

  • Brampton, Ontario
  • Mississauga Valley, Ontario
  • Toronto, Ontario
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