St. Catharines

Current Weather

5.8°C (42.4°F)

Overcast Clouds

Feels like: 2.8°C (37.0°F)

Humidity: 76%

Sun Schedule

Sunrise
07:21
Sunset
16:46

Today's Weather Summary

Today will be cold with temperatures around 6°C (32°F), feeling closer to 3°C (35°F). A Winter Storm Watch is in effect, so expect heavy snowfall, strong winds, and potentially hazardous travel conditions. Dress warmly in layers and be prepared for reduced visibility and slippery roads.

Alert Summary

**Winter Storm Watch:** Heavy lake effect snow expected, with accumulations over 7 inches possible, and wind gusts up to 45-50 mph causing blowing snow. Be prepared for hazardous travel and potential power outages starting [insert start time if available].

Active Weather Alerts

2

Winter Storm Watch

* WHAT...Heavy lake effect snow possible. Total snow accumulations 7 inches or more possible in the most persistent lake snows. Winds could gust as high as 50 mph, producing considerable blowing and drifting snow and near whiteout conditions. * WHERE...Northern Erie and Genesee Counties. Greatest snow accumulations will likely be south and east of the City of Buffalo and in southwest Genesee County. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Travel could be difficult with slushy, snow covered roads and very poor visibility. The hazardous conditions could impact the busy Thanksgiving holiday travel period. Gusty winds could down tree branches and cause isolated power outages. * ADDITIONAL DETAILS...There remains considerable uncertainty during the early portion of this lake effect snow event. There remains some uncertainty with band placement, and considerable uncertainty with how fast lake effect rain will change to snow. Both of these factors will determine how much snow ends up accumulating.

From: Nov 24, 2025 12:40 Until: Nov 25, 2025 01:30

Winter Storm Watch

* WHAT...Heavy lake effect snow possible. Total snow accumulations greater than 7 inches possible in the most persistent lake snows. Winds could gust as high as 45 mph, producing considerable blowing and drifting snow and near whiteout conditions. * WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie Counties. * WHEN...From Wednesday evening through Friday evening. * IMPACTS...Whiteout conditions are possible and may make travel treacherous with very poor visibility. Plan on snow covered and slippery road conditions. The hazardous conditions could impact the busy Thanksgiving holiday travel period. Gusty winds could down tree branches and cause isolated power outages.

From: Nov 24, 2025 12:40 Until: Nov 25, 2025 01:30

3-Day Weather Forecast

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Marine Conditions

Tide Information

Time Type Height

Wave Conditions

About St. Catharines

St. Catharines is a city in Canada.

43.157981, -79.2441

Weather Map

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St. Catharines
St. Catharines
St. Catharines
St. Catharines, Canada
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