Grimsby, ON Weekly 7-Day Weather

Wednesday

Sep 30, 2026

High 22°C • Low 17°C Overcast

Morning

17°C

Feels 15°C

Overcast

💧 25%

Afternoon

21°C

Feels 18°C

Overcast

💧 15%

Evening

20°C

Feels 19°C

Overcast

💧 19%

Overnight

17°C

Feels 15°C

Overcast

💧 20%

Thursday

Oct 1, 2026

High 26°C • Low 16°C Overcast

Morning

20°C

Feels 16°C

Overcast

💧 20%

Afternoon

25°C

Feels 20°C

Partly Cloudy

💧 5%

Evening

24°C

Feels 20°C

Overcast

💧 15%

Overnight

18°C

Feels 14°C

Light drizzle

💧 44%

Friday

Oct 2, 2026

High 23°C • Low 13°C Overcast

Morning

20°C

Feels 17°C

Patchy rain nearby

💧 33%

Afternoon

16°C

Feels 12°C

Light rain

💧 74%

Evening

15°C

Feels 11°C

Overcast

💧 21%

Overnight

21°C

Feels 20°C

Overcast

💧 23%

Saturday

Oct 3, 2026

High 13°C • Low 11°C Sunny

Morning

11°C

Feels 7°C

Sunny

💧 5%

Afternoon

12°C

Feels 9°C

Sunny

💧 3%

Evening

12°C

Feels 9°C

Overcast

💧 14%

Overnight

12°C

Feels 9°C

Clear

💧 6%

Sunday

Oct 4, 2026

High 17°C • Low 11°C Overcast

Morning

12°C

Feels 10°C

Overcast

💧 16%

Afternoon

15°C

Feels 13°C

Sunny

💧 5%

Evening

16°C

Feels 11°C

Clear

💧 4%

Overnight

12°C

Feels 11°C

Overcast

💧 15%

Monday

Oct 5, 2026

High 13°C • Low 9°C Sunny

Morning

10°C

Feels 7°C

Overcast

💧 12%

Afternoon

12°C

Feels 9°C

Patchy rain nearby

💧 14%

Evening

11°C

Feels 7°C

Clear

💧 3%

Overnight

11°C

Feels 7°C

Clear

💧 6%

Tuesday

Oct 6, 2026

High 14°C • Low 7°C Sunny

Morning

8°C

Feels 7°C

Sunny

💧 4%

Afternoon

13°C

Feels 10°C

Partly Cloudy

💧 2%

Evening

12°C

Feels 7°C

Cloudy

💧 13%

Overnight

8°C

Feels 6°C

Clear

💧 4%

Grimsby, ON

Hourly Forecast

September 1, 2026

7 Day Forecast

Precipitation Map

Grimsby, ON Weekly 7-Day Weather

Wednesday

Sep 30, 2026

High 22°C • Low 17°C Overcast

Morning

17°C

Feels 15°C

Overcast

💧 25%

Afternoon

21°C

Feels 18°C

Overcast

💧 15%

Evening

20°C

Feels 19°C

Overcast

💧 19%

Overnight

17°C

Feels 15°C

Overcast

💧 20%

Thursday

Oct 1, 2026

High 26°C • Low 16°C Overcast

Morning

20°C

Feels 16°C

Overcast

💧 20%

Afternoon

25°C

Feels 20°C

Partly Cloudy

💧 5%

Evening

24°C

Feels 20°C

Overcast

💧 15%

Overnight

18°C

Feels 14°C

Light drizzle

💧 44%

Friday

Oct 2, 2026

High 23°C • Low 13°C Overcast

Morning

20°C

Feels 17°C

Patchy rain nearby

💧 33%

Afternoon

16°C

Feels 12°C

Light rain

💧 74%

Evening

15°C

Feels 11°C

Overcast

💧 21%

Overnight

21°C

Feels 20°C

Overcast

💧 23%

Saturday

Oct 3, 2026

High 13°C • Low 11°C Sunny

Morning

11°C

Feels 7°C

Sunny

💧 5%

Afternoon

12°C

Feels 9°C

Sunny

💧 3%

Evening

12°C

Feels 9°C

Overcast

💧 14%

Overnight

12°C

Feels 9°C

Clear

💧 6%

Sunday

Oct 4, 2026

High 17°C • Low 11°C Overcast

Morning

12°C

Feels 10°C

Overcast

💧 16%

Afternoon

15°C

Feels 13°C

Sunny

💧 5%

Evening

16°C

Feels 11°C

Clear

💧 4%

Overnight

12°C

Feels 11°C

Overcast

💧 15%

Monday

Oct 5, 2026

High 13°C • Low 9°C Sunny

Morning

10°C

Feels 7°C

Overcast

💧 12%

Afternoon

12°C

Feels 9°C

Patchy rain nearby

💧 14%

Evening

11°C

Feels 7°C

Clear

💧 3%

Overnight

11°C

Feels 7°C

Clear

💧 6%

Tuesday

Oct 6, 2026

High 14°C • Low 7°C Sunny

Morning

8°C

Feels 7°C

Sunny

💧 4%

Afternoon

13°C

Feels 10°C

Partly Cloudy

💧 2%

Evening

12°C

Feels 7°C

Cloudy

💧 13%

Overnight

8°C

Feels 6°C

Clear

💧 4%

Grimsby, ON Weekly 7-Day Weather

Wednesday

Sep 30, 2026

High 22°C • Low 17°C Overcast

Morning

17°C

Feels 15°C

Overcast

💧 25%

Afternoon

21°C

Feels 18°C

Overcast

💧 15%

Evening

20°C

Feels 19°C

Overcast

💧 19%

Overnight

17°C

Feels 15°C

Overcast

💧 20%

Thursday

Oct 1, 2026

High 26°C • Low 16°C Overcast

Morning

20°C

Feels 16°C

Overcast

💧 20%

Afternoon

25°C

Feels 20°C

Partly Cloudy

💧 5%

Evening

24°C

Feels 20°C

Overcast

💧 15%

Overnight

18°C

Feels 14°C

Light drizzle

💧 44%

Friday

Oct 2, 2026

High 23°C • Low 13°C Overcast

Morning

20°C

Feels 17°C

Patchy rain nearby

💧 33%

Afternoon

16°C

Feels 12°C

Light rain

💧 74%

Evening

15°C

Feels 11°C

Overcast

💧 21%

Overnight

21°C

Feels 20°C

Overcast

💧 23%

Saturday

Oct 3, 2026

High 13°C • Low 11°C Sunny

Morning

11°C

Feels 7°C

Sunny

💧 5%

Afternoon

12°C

Feels 9°C

Sunny

💧 3%

Evening

12°C

Feels 9°C

Overcast

💧 14%

Overnight

12°C

Feels 9°C

Clear

💧 6%

Sunday

Oct 4, 2026

High 17°C • Low 11°C Overcast

Morning

12°C

Feels 10°C

Overcast

💧 16%

Afternoon

15°C

Feels 13°C

Sunny

💧 5%

Evening

16°C

Feels 11°C

Clear

💧 4%

Overnight

12°C

Feels 11°C

Overcast

💧 15%

Monday

Oct 5, 2026

High 13°C • Low 9°C Sunny

Morning

10°C

Feels 7°C

Overcast

💧 12%

Afternoon

12°C

Feels 9°C

Patchy rain nearby

💧 14%

Evening

11°C

Feels 7°C

Clear

💧 3%

Overnight

11°C

Feels 7°C

Clear

💧 6%

Tuesday

Oct 6, 2026

High 14°C • Low 7°C Sunny

Morning

8°C

Feels 7°C

Sunny

💧 4%

Afternoon

13°C

Feels 10°C

Partly Cloudy

💧 2%

Evening

12°C

Feels 7°C

Cloudy

💧 13%

Overnight

8°C

Feels 6°C

Clear

💧 4%