Weather in Grimsby

Ontario, 88 m · continuously updated

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Wind: –
Humidity: –
Rain ahead: –
Sunset: –

Temperature · last 4 and next 28 hours

Grimsby weather: the next 24 hours

Updated hourly.

Grimsby 14-day forecast

Two-week trend.

Rain radar

Sun and golden hours

Sunrise –, golden light until –

Sunset –, golden light from –

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Air quality

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European index, measured continuously.

UV index

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Daily maximum — protection advised from 3.

Freezing level

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Snow settles about 300 m below it.

Around Grimsby

Neighbouring towns, as the crow flies.

Stoney Creek16 km Hamilton24 km St. Catharines26 km Oakville29 km Waterdown30 km Burlington30 km Thorold31 km Dunnville34 km

7-day forecast for Grimsby

Today (Thursday 15 Oct) in Grimsby: overcast, 11 to 13 °C, precipitation 0.0 mm (35 %), wind up to 25 km/h. Tomorrow: drizzle, 7 to 20 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	overcast	11 °C	13 °C	0.0 mm	25 km/h
Tomorrow	drizzle	7 °C	20 °C	2.6 mm	38 km/h
Sat 17 Oct	overcast	3 °C	10 °C	0.0 mm	36 km/h
Sun 18 Oct	overcast	2 °C	16 °C	0.0 mm	35 km/h
Mon 19 Oct	overcast	10 °C	19 °C	0.0 mm	29 km/h
Tue 20 Oct	overcast	9 °C	19 °C	0.0 mm	14 km/h
Wed 21 Oct	overcast	8 °C	13 °C	0.0 mm	22 km/h

Forecast updated on 15.10.2026 at 11:44 (Open-Meteo model, elevation 88 m). The live block at the top of the page is refreshed hourly and covers 14 days.

Tomorrow's weather in Grimsby

Tomorrow, Friday 16 Oct, in Grimsby: drizzle, from 7 to 20 °C, 2.6 mm of precipitation (probability 66 %), wind up to 38 km/h.

Hour	Weather	Temp.	Precip.	Chance	Wind
00:00	light drizzle	12 °C	0.4 mm	39 %	3 km/h
03:00	light drizzle	12 °C	0.4 mm	64 %	5 km/h
06:00	overcast	20 °C	0.0 mm	19 %	29 km/h
09:00	overcast	20 °C	0.0 mm	33 %	33 km/h
12:00	overcast	17 °C	0.0 mm	9 %	32 km/h
15:00	overcast	12 °C	0.0 mm	3 %	24 km/h
18:00	overcast	10 °C	0.0 mm	6 %	30 km/h
21:00	overcast	8 °C	0.0 mm	1 %	32 km/h

Frequently asked questions

Will it rain tomorrow in Grimsby?

Yes: 2.6 mm expected, probability 66 %.

How warm will it be tomorrow in Grimsby?

Between 7 and 20 °C.

The weekend

This weekend in Grimsby: Saturday overcast, 3 to 10 °C, Sunday overcast, 2 to 16 °C.

Day	Weather	Min	Max	Precip.	Wind
Sat 17 Oct	overcast	3 °C	10 °C	0.0 mm	36 km/h
Sun 18 Oct	overcast	2 °C	16 °C	0.0 mm	35 km/h

Hour by hour

The next 48 hours in Grimsby, hour by hour: temperature from 3 to 20 °C, 2.6 mm of rain expected.

Hour	Weather	Temp.	Precip.	Chance	Wind
11:00	overcast	11 °C	0.0 mm	0 %	18 km/h
12:00	overcast	11 °C	0.0 mm	0 %	15 km/h
13:00	overcast	11 °C	0.0 mm	0 %	12 km/h
14:00	overcast	13 °C	0.0 mm	0 %	16 km/h
15:00	overcast	13 °C	0.0 mm	0 %	19 km/h
16:00	partly cloudy	12 °C	0.0 mm	0 %	21 km/h
17:00	partly cloudy	12 °C	0.0 mm	1 %	21 km/h
18:00	overcast	12 °C	0.0 mm	1 %	21 km/h
19:00	overcast	12 °C	0.0 mm	3 %	22 km/h
20:00	overcast	12 °C	0.0 mm	8 %	20 km/h
21:00	overcast	11 °C	0.0 mm	5 %	18 km/h
22:00	overcast	11 °C	0.0 mm	15 %	15 km/h
23:00	overcast	11 °C	0.0 mm	35 %	9 km/h
00:00	light drizzle	12 °C	0.4 mm	39 %	3 km/h
01:00	overcast	11 °C	0.0 mm	41 %	2 km/h
02:00	drizzle	11 °C	0.7 mm	44 %	4 km/h
03:00	light drizzle	12 °C	0.4 mm	64 %	5 km/h
04:00	drizzle	13 °C	0.7 mm	66 %	15 km/h
05:00	partly cloudy	19 °C	0.0 mm	37 %	36 km/h
06:00	overcast	20 °C	0.0 mm	19 %	29 km/h
07:00	overcast	20 °C	0.0 mm	17 %	30 km/h
08:00	overcast	20 °C	0.0 mm	20 %	27 km/h
09:00	overcast	20 °C	0.0 mm	33 %	33 km/h
10:00	overcast	19 °C	0.0 mm	31 %	33 km/h
11:00	overcast	17 °C	0.0 mm	21 %	29 km/h
12:00	overcast	17 °C	0.0 mm	9 %	32 km/h
13:00	overcast	16 °C	0.0 mm	9 %	30 km/h
14:00	light drizzle	14 °C	0.4 mm	3 %	25 km/h
15:00	overcast	12 °C	0.0 mm	3 %	24 km/h
16:00	overcast	12 °C	0.0 mm	3 %	26 km/h
17:00	overcast	11 °C	0.0 mm	6 %	29 km/h
18:00	overcast	10 °C	0.0 mm	6 %	30 km/h
19:00	overcast	9 °C	0.0 mm	5 %	32 km/h
20:00	overcast	8 °C	0.0 mm	2 %	35 km/h
21:00	overcast	8 °C	0.0 mm	1 %	32 km/h
22:00	overcast	7 °C	0.0 mm	1 %	34 km/h
23:00	overcast	7 °C	0.0 mm	4 %	38 km/h
00:00	overcast	6 °C	0.0 mm	4 %	36 km/h
01:00	overcast	5 °C	0.0 mm	4 %	32 km/h
02:00	overcast	5 °C	0.0 mm	4 %	31 km/h
03:00	sunny	4 °C	0.0 mm	1 %	28 km/h
04:00	overcast	4 °C	0.0 mm	1 %	27 km/h
05:00	overcast	4 °C	0.0 mm	1 %	28 km/h
06:00	overcast	3 °C	0.0 mm	1 %	28 km/h
07:00	overcast	3 °C	0.0 mm	1 %	27 km/h
08:00	overcast	3 °C	0.0 mm	1 %	26 km/h
09:00	sunny	4 °C	0.0 mm	0 %	27 km/h
10:00	sunny	4 °C	0.0 mm	0 %	26 km/h

Location of Grimsby

Grimsby lies at 88 m, 116 m below the average of the 187 places we cover in Ontario (204 m). That makes it the 25th lowest of the 187. The main town, Toronto, lies 58 km to the north. The nearest places we cover are Stoney Creek (16 km to the west), Hamilton (24 km to the west), St. Catharines (26 km to the east) and Oakville (29 km to the north). With about 27,314 inhabitants according to GeoNames, Grimsby is the 69th largest of the 187 places we cover in Ontario.