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Grimsby, ON Weather Forecast
Grimsby, ON Weather Forecast Dated: 803 PM Wed Nov 11 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Wednesday, November 11, 2026
Mid-Morning
7°C 45°F
Overcast
Mid-Afternoon
10°C 50°F
Scattered Showers
Early-Evening
8°C 46°F
Scattered Showers
Brisk around 10°C 50°F, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling.
Thursday, November 12, 2026
Mid-Morning
7°C 44°F
Drizzle
Mid-Afternoon
6°C 42°F
Scattered Showers
Early-Evening
6°C 41°F
Scattered Showers
Biting cold near 6°C 42°F, scattered downpours possible, with lower humidity and steady pressure. Winds turning from the NE to the NNE at 22 km/h 14 mph. Gusts up to 37 km/h 23 mph.
Friday, November 13, 2026
Mid-Morning
3°C 37°F
Light Snow
Mid-Afternoon
4°C 39°F
Light Snow
Early-Evening
3°C 36°F
Light Snow
Cold with a high near 4°C 39°F, on-and-off snow throughout the day, with steady humidity and steady pressure. Winds switching from the N to the NW at 8 km/h 5 mph.
Saturday, November 14, 2026
Mid-Morning
2°C 35°F
Scattered Showers
Mid-Afternoon
6°C 42°F
Scattered Showers
Early-Evening
4°C 40°F
Scattered Showers
Nippy around 6°C 42°F, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure rising. Winds NW at 19 km/h 12 mph. Gusts up to 32 km/h 20 mph.
Sunday, November 15, 2026
Mid-Morning
4°C 39°F
Scattered Showers
Mid-Afternoon
7°C 44°F
Scattered Showers
Early-Evening
6°C 42°F
Overcast
Biting cold near 7°C 44°F, scattered downpours possible, with lower humidity and steady pressure.
Monday, November 16, 2026
Mid-Morning
5°C 41°F
Partly Cloudy
Mid-Afternoon
8°C 46°F
Scattered Showers
Early-Evening
6°C 43°F
Overcast
Cool and brisk at 8°C 46°F, locally heavy downpours at times, with steady humidity and steady pressure.
Tuesday, November 17, 2026
Mid-Morning
4°C 39°F
Sunny
Mid-Afternoon
8°C 46°F
Sunny
Early-Evening
4°C 40°F
Clear
Chilly near 8°C 46°F, sunny throughout the day, with steady humidity and steady pressure.
Wednesday, November 18, 2026
Mid-Morning
4°C 38°F
Sunny
Mid-Afternoon
9°C 47°F
Sunny
Early-Evening
5°C 41°F
Clear
Crisp with a high near 9°C 47°F, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Thursday, November 19, 2026
Mid-Morning
7°C 44°F
Light Fog
Mid-Afternoon
10°C 51°F
Partly Cloudy
Early-Evening
8°C 46°F
Partly Cloudy
Brisk around 10°C 51°F, cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds out of the SW at 15 km/h 9 mph.
Friday, November 20, 2026
Mid-Morning
9°C 49°F
Overcast
Mid-Afternoon
11°C 53°F
Cloudy
Early-Evening
10°C 49°F
Cloudy
Cool and brisk at 11°C 53°F, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Saturday, November 21, 2026
Mid-Morning
9°C 49°F
Overcast
Mid-Afternoon
12°C 54°F
Overcast
Early-Evening
12°C 54°F
Overcast
Chilly near 12°C 54°F, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds blowing from the SSW at 18 km/h 11 mph. Gusts up to 39 km/h 24 mph.
Sunday, November 22, 2026
Mid-Morning
12°C 53°F
Overcast
Mid-Afternoon
15°C 58°F
Cloudy
Early-Evening
14°C 56°F
Overcast
Cool with a high near 15°C 58°F, overcast throughout the day, with steady humidity and barometric pressure falling. Winds SSW at 26 km/h 16 mph. Gusts up to 55 km/h 34 mph.
Monday, November 23, 2026
Mid-Morning
11°C 52°F
Light Showers
Mid-Afternoon
12°C 54°F
Drizzle
Early-Evening
13°C 55°F
Scattered Showers
Brisk around 12°C 54°F, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds switching from the SE to the E at 17 km/h 10 mph. Gusts up to 46 km/h 29 mph.
Tuesday, November 24, 2026
Mid-Morning
4°C 39°F
Scattered Showers
Mid-Afternoon
3°C 37°F
Overcast
Early-Evening
1°C 33°F
Partly Cloudy
Biting cold near 3°C 37°F, scattered downpours possible, with lower humidity and barometric pressure rising. Winds blowing from the SW at 19 km/h 12 mph. Gusts up to 43 km/h 27 mph.
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