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St. Catharines, Ontario

68°F
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St. Catharines

Ontario

68°
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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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Hourly

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12 PM

71°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™67°

WindWSW 16 mph

Air QualityExcellent

Max UV Index8.2 (Very High)

Wind Gusts25 mph

Humidity46%

Indoor Humidity46% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover50%

Visibility10 mi

Cloud Ceiling20000 ft

1 PM

73°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™69°

WindWSW 17 mph

Air QualityExcellent

Max UV Index9.7 (Very High)

Wind Gusts29 mph

Humidity43%

Indoor Humidity43% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover59%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

75°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 17%
Chevron down
Intermittent clouds

RealFeel Shade™71°

WindWSW 16 mph

Air QualityFair

Max UV Index8.2 (Very High)

Wind Gusts28 mph

Humidity41%

Indoor Humidity41% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

76°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 17%
Chevron down
Intermittent clouds

RealFeel Shade™72°

WindW 16 mph

Air QualityFair

Max UV Index6.1 (High)

Wind Gusts29 mph

Humidity40%

Indoor Humidity40% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover68%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

75°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 22%
Chevron down
Intermittent clouds

RealFeel Shade™71°

WindW 16 mph

Air QualityFair

Max UV Index4.3 (Moderate)

Wind Gusts29 mph

Humidity41%

Indoor Humidity41% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

74°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

RealFeel Shade™70°

WindW 15 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts30 mph

Humidity44%

Indoor Humidity44% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

72°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™66°

WindW 14 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts29 mph

Humidity46%

Indoor Humidity46% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover66%

Rain0.01 in

Visibility10 mi

Cloud Ceiling24900 ft

7 PM

69°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

RealFeel Shade™67°

WindWNW 12 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts23 mph

Humidity50%

Indoor Humidity50% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover68%

Visibility10 mi

Cloud Ceiling19800 ft

8 PM

66°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 38%
Chevron down
Partly sunny

RealFeel Shade™63°

WindNW 10 mph

Air QualityExcellent

Max UV Index0.4 (Low)

Wind Gusts20 mph

Humidity57%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

62°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 42%
Chevron down
Partly cloudy w/ showers

WindNNW 12 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity62%

Indoor Humidity51% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Rain0.01 in

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

59°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 38%
Chevron down
Partly cloudy

WindN 13 mph

Air QualityExcellent

Wind Gusts16 mph

Humidity64%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover39%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

56°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Mostly clear

WindNNE 13 mph

Air QualityExcellent

Wind Gusts15 mph

Humidity67%

Indoor Humidity44% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 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 71° with a RealFeel® of 74°, intermittent clouds with a 0% 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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