St. Catharines

Niagara Region, Ontario, Canada

Current Weather

10°50°

Clear

Feels Like: 4°39°

Min: 4°39°

Max: 15°59°

The next few hours will be clear, with today reaching 15°C and dropping to 1°C. The coming days will be drizzle

Hourly Forecast

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Today

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Air Quality

33
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous

Daylight Hours

07:52

Sunrise

18:08

Sunset

10 hours 16 minutes of sunlight today

Moon

18:12

Moonrise

08:24

Moonset

Daily Forecast

Today

4°39°
15°59°

Tuesday

1°33°
8°46°

Wednesday

-1°30°
10°50°

Thursday

0°32°
11°52°

Friday

1°34°
9°47°

Saturday

0°32°
8°46°

Sunday

0°32°
7°45°

Sunday

0°33°
16°60°

Monday

9°49°
14°58°

Tuesday

10°50°
20°68°

UV Index

No protection needed
0Low
LowExtreme

Humidity

85%Humid
LowHigh

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Weather in St. Catharines today, October 26, 2026

Expect a mostly clear day in St. Catharines on October 26, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Expect a grey start, with morning cloud around 100% by 06:00. Outdoor plans early on should not rely on bright skies.Expect a mostly clear day in St. Catharines on October 26, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Expect a grey start, with morning cloud around 100% by 06:00. Outdoor plans early on should not rely on bright skies.

The day peaks near 15°C and cools toward 4°C. The air stays humid, with relative humidity between 52% and 96% and the peak around 07:00. Winds turn strong, with the highest speeds near 17:00 at about 33 km/h.The day peaks near 59°F and cools toward 39°F. The air stays humid, with relative humidity between 52% and 96% and the peak around 07:00. Winds turn strong, with the highest speeds near 17:00 at about 21 mph.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 15:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.7 km, with poorer spells close to 13.7 km. Sunrise is at 07:52 and sunset at 18:08, giving 10 hours 16 minutes of sunlight today.The afternoon keeps an overcast feel, as cloud reaches about 100% around 15:00. Outdoor plans may still want a flexible backup. Expect visibility near 9.7 mi, with poorer spells close to 8.5 mi. Sunrise is at 07:52 and sunset at 18:08, giving 10 hours 16 minutes of sunlight today.

In short, secure loose items and expect a blustery October 26, 2026 in St. Catharines, peaking near 15°C.In short, secure loose items and expect a blustery October 26, 2026 in St. Catharines, peaking near 59°F.

Frequently asked questions about weather in St. Catharines

How warm does it get in St. Catharines?

The warmest month in St. Catharines is July, with average high temperatures of 25°C. The average temperature during this period is around 23°C.The warmest month in St. Catharines is July, with average high temperatures of 78°F. The average temperature during this period is around 73°F.

How cold does it get in St. Catharines?

The coldest month in St. Catharines is January, with average low temperatures of -4°C. The average temperature during this period is around -2°C.The coldest month in St. Catharines is January, with average low temperatures of 25°F. The average temperature during this period is around 29°F.

What is the wettest time of year in St. Catharines?

The wettest month in St. Catharines is April, with an average of 108 mm of precipitation.The wettest month in St. Catharines is April, with an average of 4.2 in of precipitation.

What is the driest time of year in St. Catharines?

The driest month in St. Catharines is September, with an average of 63 mm of precipitation.The driest month in St. Catharines is September, with an average of 2.5 in of precipitation.

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