Current Conditions

St. Catharines, Ontario

58°F14°C
Breeze

A breeze from the SSW at 8 mph. Temperatures will hold near 58°F. Mostly cloudy.A breeze from the SSW at 13 km/h. Temperatures will hold near 14°C. Mostly cloudy.

Wind

SSW 8 mph13 km/h

Humidity

75%

Cloud Cover

78%

As of Monday, November 2, 2026 at 9:07 AM EST

Today's Outlook

Day

A breeze from the SSW at 8 mph. Temperatures will range from 54°F to 62°F. Mostly cloudy.A breeze from the SSW at 13 km/h. Temperatures will range from 12°C to 17°C. Mostly cloudy.

Night

There is a medium chance of drizzle before dawn. Temperatures will hold near 60°F. Cloudy, with a breeze from the SSW at 10–11 mph.There is a medium chance of drizzle before dawn. Temperatures will hold near 16°C. Cloudy, with a breeze from the SSW at 16–18 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
CloudyHigh 62°F17°CLow 53°F12°CPrecip 0 in0 mm—Cloud 90%Wind SSW 8 mph12 km/hA breeze from the SSW at 8 mph. Temperatures will range from 54°F to 62°F. Mostly cloudy.A breeze from the SSW at 13 km/h. Temperatures will range from 12°C to 17°C. Mostly cloudy.There is a medium chance of drizzle before dawn. Temperatures will hold near 60°F. Cloudy, with a breeze from the SSW at 10–11 mph.There is a medium chance of drizzle before dawn. Temperatures will hold near 16°C. Cloudy, with a breeze from the SSW at 16–18 km/h.
Medium chance of drizzleHigh 64°F18°CLow 59°F15°CPrecip 0.04 in1.1 mm42%Cloud 70%Wind SSW 11 mph18 km/hThere is a medium chance of drizzle in the morning. Temperatures will range from 60°F to 64°F. Mostly cloudy, with a strong breeze from the SW at 13 mph.There is a medium chance of drizzle in the morning. Temperatures will range from 16°C to 18°C. Mostly cloudy, with a strong breeze from the SW at 21 km/h.A breeze from the SSW at 11–13 mph. Temperatures will range from 59°F to 64°F. Partly cloudy.A breeze from the SSW at 18–21 km/h. Temperatures will range from 15°C to 18°C. Partly cloudy.
Light rainHigh 68°F20°CLow 59°F15°CPrecip 0.05 in1.2 mm59%Cloud 64%Wind S 10 mph15 km/hThere is a low chance of brief light rain in the afternoon. Temperatures will range from 59°F to 68°F. Partly cloudy, with a breeze from the S at 8–9 mph.There is a low chance of brief light rain in the afternoon. Temperatures will range from 15°C to 20°C. Partly cloudy, with a breeze from the S at 13–14 km/h.Light rain is expected throughout the night. Temperatures will range from 62°F to 66°F. Cloudy, with a strong breeze from the SSW at 13–14 mph.Light rain is expected throughout the night. Temperatures will range from 17°C to 19°C. Cloudy, with a strong breeze from the SSW at 21–23 km/h.
Light rainHigh 64°F18°CLow 57°F14°CPrecip 0.19 in4.7 mm90%Cloud 60%Wind SW 12 mph20 km/hThere is a medium chance of brief drizzle in the morning. Temperatures will hold near 61°F. Mostly clear, with a strong breeze from the SW at 14–15 mph.There is a medium chance of brief drizzle in the morning. Temperatures will hold near 16°C. Mostly clear, with a strong breeze from the SW at 23–24 km/h.A breeze from the SW at 9–11 mph, and there is a marginal chance of drizzle throughout the night. Temperatures will range from 55°F to 60°F. Mostly cloudy.A breeze from the SW at 14–18 km/h, and there is a marginal chance of drizzle throughout the night. Temperatures will range from 13°C to 16°C. Mostly cloudy.
Medium chance of light rainHigh 57°F14°CLow 54°F12°CPrecip 0.1 in2.5 mm42%Cloud 75%Wind SSE 9 mph14 km/hThere is a medium chance of light rain in the afternoon. Temperatures will hold near 56°F. Mostly cloudy, with a breeze from the SSE at 8–10 mph.There is a medium chance of light rain in the afternoon. Temperatures will hold near 13°C. Mostly cloudy, with a breeze from the SSE at 13–16 km/h.There is a medium chance of drizzle throughout the night. Temperatures will range from 50°F to 56°F. Mostly cloudy, with a breeze from the NE at 11 mph.There is a medium chance of drizzle throughout the night. Temperatures will range from 10°C to 13°C. Mostly cloudy, with a breeze from the NE at 18 km/h.
Medium chance of light rainHigh 53°F12°CLow 48°F9°CFeels 43°F6°CPrecip 0.18 in4.5 mm57%Cloud 90%Wind N 11 mph17 km/hThere is a medium chance of light rain around midday. Temperatures will hold near 50°F. Cloudy, with a breeze from the N at 10–11 mph.There is a medium chance of light rain around midday. Temperatures will hold near 10°C. Cloudy, with a breeze from the N at 16–18 km/h.There is a low chance of drizzle throughout the night. Temperatures will hold near 48°F, feeling as cold as 41°F. Mostly cloudy, with a breeze from the WNW at 10 mph.There is a low chance of drizzle throughout the night. Temperatures will hold near 9°C, feeling as cold as 5°C. Mostly cloudy, with a breeze from the WNW at 16 km/h.
Low chance of light rainHigh 49°F9°CFeels 44°F7°CLow 46°F8°CFeels 41°F5°CPrecip 0.11 in2.8 mm32%Cloud 82%Wind W 10 mph17 km/hThere is a low chance of light rain in the afternoon. Temperatures will hold near 48°F, feeling as cold as 41°F. Cloudy, with a breeze from the W at 10–11 mph.There is a low chance of light rain in the afternoon. Temperatures will hold near 9°C, feeling as cold as 5°C. Cloudy, with a breeze from the W at 16–18 km/h.There is a low chance of showers overnight. Temperatures will hold near 47°F, feeling as cold as 40°F. Mostly cloudy, with a breeze from the W at 11–12 mph.There is a low chance of showers overnight. Temperatures will hold near 8°C, feeling as cold as 4°C. Mostly cloudy, with a breeze from the W at 18–19 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
MondayNov 262°F17°C53°F12°C0 in0 mm· —90%CloudySSW 8 mph12 km/h
TuesdayNov 364°F18°C59°F15°C0.04 in1.1 mm· 42%70%Medium chance of drizzleSSW 11 mph18 km/h
WednesdayNov 468°F20°C59°F15°C0.05 in1.2 mm· 59%64%Light rainS 10 mph15 km/h
ThursdayNov 564°F18°C57°F14°C0.19 in4.7 mm· 90%60%Light rainSW 12 mph20 km/h
FridayNov 657°F14°C54°F12°C0.1 in2.5 mm· 42%75%Medium chance of light rainSSE 9 mph14 km/h
SaturdayNov 753°F12°C48°F9°C
Feels 43°F6°C
0.18 in4.5 mm· 57%90%Medium chance of light rainN 11 mph17 km/h
SundayNov 849°F9°C
Feels 44°F7°C
46°F8°C
Feels 41°F5°C
0.11 in2.8 mm· 32%82%Low chance of light rainW 10 mph17 km/h
MondayNov 949°F10°C
Feels 44°F7°C
46°F8°C
Feels 40°F4°C
0.13 in3.2 mm· 34%68%Low chance of showersW 12 mph20 km/h
TuesdayNov 1050°F10°C
Feels 44°F7°C
46°F8°C
Feels 41°F5°C
0.11 in2.7 mm· 33%60%Low chance of showersW 13 mph21 km/h
WednesdayNov 1147°F8°C
Feels 42°F5°C
44°F7°C
Feels 38°F3°C
0.05 in1.2 mm· 14%64%BreezeW 12 mph19 km/h
ThursdayNov 1247°F8°C
Feels 42°F6°C
42°F6°C
Feels 37°F3°C
0.03 in0.8 mm· 12%66%BreezeW 10 mph16 km/h
FridayNov 1348°F9°C
Feels 44°F7°C
43°F6°C
Feels 37°F3°C
0.07 in1.7 mm· 16%67%Low chance of light rainWSW 10 mph17 km/h
SaturdayNov 1450°F10°C45°F7°C
Feels 39°F4°C
0.14 in3.5 mm· 25%70%Low chance of showersWSW 12 mph19 km/h
SundayNov 1551°F10°C46°F8°C
Feels 40°F5°C
0.18 in4.6 mm· 25%65%Low chance of showersWSW 12 mph19 km/h
MondayNov 1650°F10°C45°F7°C
Feels 40°F4°C
0.1 in2.5 mm· 21%66%Low chance of showersWSW 12 mph19 km/h

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Coordinates: 43.1713°N, 79.2427°W·Elevation: 102m·Timezone: America/Toronto·Population: 136,803