Grimsby, ON 14 Day Weather - WeatherWorld.com
Quick Weather Clicks
Settings
Sun & Moon


Grimsby, ON Weather Forecast


Grimsby, ON Weather Forecast Dated: 636 PM Tue Sep 15 2026
Expect a cool pattern with more clouds than sun and mostly dry weather over the coming period. generally humid conditions and no major pressure swings will dominate.
Tuesday, September 15, 2026
Mid-Morning
17°C 62°F
Overcast
Mid-Afternoon
23°C 73°F
Overcast
Early-Evening
24°C 74°F
Overcast
Pleasant near 23°C 73°F, overcast throughout the day, with lower humidity and steady pressure. Winds turning from the S to the SW at 20 km/h 12 mph.
Wednesday, September 16, 2026
Mid-Morning
20°C 67°F
Overcast
Mid-Afternoon
21°C 69°F
Overcast
Early-Evening
21°C 70°F
Overcast
Comfortable with temperatures reaching 21°C 69°F, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the N to the NE at 6 km/h 4 mph.
Thursday, September 17, 2026
Mid-Morning
18°C 64°F
Overcast
Mid-Afternoon
19°C 66°F
Cloudy
Early-Evening
20°C 68°F
Overcast
Comfortable at 19°C 66°F, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
16°C 60°F
Partly Cloudy
Mid-Afternoon
16°C 62°F
Overcast
Early-Evening
16°C 61°F
Overcast
Cool with a high near 16°C 62°F, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the NNE to the NE at 13 km/h 8 mph.
Saturday, September 19, 2026
Mid-Morning
14°C 57°F
Scattered Showers
Mid-Afternoon
11°C 52°F
Scattered Showers
Early-Evening
13°C 55°F
Cloudy
Brisk around 11°C 52°F, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds swinging from the ESE to the E at 15 km/h 9 mph.
Sunday, September 20, 2026
Mid-Morning
15°C 59°F
Scattered Showers
Mid-Afternoon
16°C 60°F
Overcast
Early-Evening
16°C 61°F
Overcast
Mildly cool near 16°C 60°F, locally heavy downpours at times, with lower humidity and steady pressure. Winds shifting from the NE to the E at 28 km/h 18 mph. Gusts up to 36 km/h 23 mph.
Monday, September 21, 2026
Mid-Morning
16°C 60°F
Scattered Showers
Mid-Afternoon
16°C 62°F
Overcast
Early-Evening
17°C 62°F
Overcast
Comfortable at 16°C 62°F, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the ENE to the E at 28 km/h 17 mph. Gusts up to 32 km/h 20 mph.
Tuesday, September 22, 2026
Mid-Morning
17°C 62°F
Scattered Showers
Mid-Afternoon
18°C 64°F
Partly Cloudy
Early-Evening
18°C 65°F
Sunny
Cool with a high near 18°C 64°F, scattered downpours possible, with steady humidity and steady pressure. Winds out of the ENE at 33 km/h 21 mph. Gusts up to 32 km/h 20 mph.
Wednesday, September 23, 2026
Mid-Morning
17°C 62°F
Cloudy
Mid-Afternoon
17°C 63°F
Sunny
Early-Evening
18°C 64°F
Cloudy
Refreshing around 17°C 63°F, overcast in the morning, sunny in the afternoon, and cloudy this evening, with increasing humidity and steady pressure. Winds moving from the NE to the E at 15 km/h 9 mph.
Thursday, September 24, 2026
Mid-Morning
19°C 66°F
Partly Cloudy
Mid-Afternoon
23°C 74°F
Cloudy
Early-Evening
22°C 71°F
Overcast
Mild with a high of 23°C 74°F, partly cloudy through the afternoon, turning overcast this evening, with steady humidity and barometric pressure falling. Winds swinging from the S to the SSE at 21 km/h 13 mph.
Friday, September 25, 2026
Mid-Morning
21°C 69°F
Overcast
Mid-Afternoon
23°C 73°F
Light Showers
Early-Evening
21°C 69°F
Light Showers
Pleasant near 23°C 73°F, clouds and showers taking over for the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the S to the SE at 17 km/h 11 mph.
Saturday, September 26, 2026
Mid-Morning
18°C 65°F
Scattered Showers
Mid-Afternoon
16°C 62°F
Light Showers
Early-Evening
14°C 57°F
Overcast
Cool with a high near 16°C 62°F, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds turning from the SSW to the NNW at 37 km/h 23 mph. Gusts up to 47 km/h 29 mph.
Sunday, September 27, 2026
Mid-Morning
11°C 52°F
Overcast
Mid-Afternoon
15°C 59°F
Sunny
Early-Evening
14°C 58°F
Sunny
Refreshing around 15°C 59°F, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds N at 17 km/h 11 mph.
Monday, September 28, 2026
Mid-Morning
12°C 53°F
Sunny
Mid-Afternoon
15°C 59°F
Cloudy
Early-Evening
15°C 59°F
Overcast
Mildly cool near 15°C 59°F, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the NNW to the SE at 9 km/h 6 mph.
Grimsby, ON Weather Radar Map
Use the map search tool if you want to place a location marker on the radar map...
Weather World