Current Conditions

Grimsby, Ontario

65°F19°C

Partly Cloudy

Wind

SW 13 mph20 km/h

Humidity

86%

Cloud Cover

16%

As of Monday, October 12, 2026 at 10:56 PM EDT

Today's Outlook

Night

Partly cloudy, with a low around 65°F19°C. Breezy from the SW at 12 to 13 mph20 to 20 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 67°F20°C	Low 65°F19°C	Precip 0 in0 mm—	Cloud 54%	Wind SW 12 mph20 km/h	Monday: Mostly cloudy and mild, with a high of 67°F20°C. Breezy from the SW at 13 mph21 km/h. Monday Night: Partly cloudy, with a low around 65°F19°C. Breezy from the SW at 12 to 13 mph20 to 20 km/h.
Showers	High 72°F22°C	Low 65°F19°C	Precip 0.08 in2 mm58%	Cloud 39%	Wind SW 14 mph22 km/h	Tuesday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 66°F19°C. Windy from the SW at 15 to 17 mph24 to 28 km/h. 58% chance of showers in the morning. Tuesday Night: Partly cloudy, with a low around 65°F19°C. Breezy from the WSW at 13 mph20 km/h. 50% chance of showers before dawn.
Drizzle	High 65°F19°C	Low 57°F14°C	Precip 0.02 in0.5 mm25%	Cloud 84%	Wind WNW 9 mph14 km/h	Wednesday: Overcast and mild, with a high of 62°F16°C. Breezy from the WNW at 8 to 10 mph13 to 16 km/h. 25% chance of drizzle in the morning. Wednesday Night: Mostly cloudy, with a low around 57°F14°C. Breezy from the NW at 10 mph16 km/h.
Light Rain	High 56°F14°C	Low 52°F11°C	Precip 0.04 in0.9 mm35%	Cloud 95%	Wind NE 11 mph17 km/h	Thursday: Overcast and mild, with a high of 54°F12°C. Breezy from the ENE at 11 mph18 km/h. Dry air. Thursday Night: Overcast, with a low around 52°F11°C. Breezy from the NE at 11 mph17 km/h. 35% chance of light rain overnight.
Rain	High 57°F14°C	Low 46°F8°CFeels 39°F4°C	Precip 0.54 in13.6 mm96%	Cloud 82%	Wind NW 13 mph21 km/h	Friday: Overcast and mild, with a high of 57°F14°C. Windy from the WNW at 14 to 16 mph22 to 26 km/h. 96% chance of rain in the morning. Friday Night: Mostly cloudy, with a low around 46°F8°C. Windy from the NNW at 13 to 17 mph21 to 28 km/h. 92% chance of rain overnight.
Drizzle	High 49°F9°CFeels 44°F6°C	Low 39°F4°CFeels 32°F0°C	Precip 0.01 in0.2 mm14%	Cloud 35%	Wind WNW 13 mph21 km/h	Saturday: Partly cloudy and cool, with a high of 49°F9°C and morning low of 39°F4°C — feels like 43°F6°C. Breezy from the WNW at 13 mph21 km/h. Very dry. Saturday Night: Partly cloudy, with a low around 40°F5°C. Windy from the WNW at 14 to 17 mph22 to 27 km/h. 14% chance of drizzle.
Clear	High 56°F14°C	Low 44°F7°CFeels 38°F4°C	Precip 0 in0.1 mm2%	Cloud 17%	Wind SW 12 mph19 km/h	Sunday: Mostly clear and mild, with a high of 56°F14°C and morning low of 45°F7°C. Breezy from the SW at 12 to 13 mph19 to 20 km/h. Dry air. Sunday Night: Mostly clear, with a low around 44°F7°C. Breezy from the SW at 12 mph19 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	MondayOct 12	67°F20°C	65°F19°C	0 in0 mm· —	54%	Partly Cloudy	SW 12 mph20 km/h
DayMostly cloudy and mild, with a high of 67°F20°C. Breezy from the SW at 13 mph21 km/h. NightPartly cloudy, with a low around 65°F19°C. Breezy from the SW at 12 to 13 mph20 to 20 km/h.
	TuesdayOct 13	72°F22°C	65°F19°C	0.08 in2 mm· 58%	39%	Showers	SW 14 mph22 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 66°F19°C. Windy from the SW at 15 to 17 mph24 to 28 km/h. 58% chance of showers in the morning. NightPartly cloudy, with a low around 65°F19°C. Breezy from the WSW at 13 mph20 km/h. 50% chance of showers before dawn.
	WednesdayOct 14	65°F19°C	57°F14°C	0.02 in0.5 mm· 25%	84%	Drizzle	WNW 9 mph14 km/h
DayOvercast and mild, with a high of 62°F16°C. Breezy from the WNW at 8 to 10 mph13 to 16 km/h. 25% chance of drizzle in the morning. NightMostly cloudy, with a low around 57°F14°C. Breezy from the NW at 10 mph16 km/h.
	ThursdayOct 15	56°F14°C	52°F11°C	0.04 in0.9 mm· 35%	95%	Light Rain	NE 11 mph17 km/h
DayOvercast and mild, with a high of 54°F12°C. Breezy from the ENE at 11 mph18 km/h. Dry air. NightOvercast, with a low around 52°F11°C. Breezy from the NE at 11 mph17 km/h. 35% chance of light rain overnight.
	FridayOct 16	57°F14°C	46°F8°C Feels 39°F4°C	0.54 in13.6 mm· 96%	82%	Rain	NW 13 mph21 km/h
DayOvercast and mild, with a high of 57°F14°C. Windy from the WNW at 14 to 16 mph22 to 26 km/h. 96% chance of rain in the morning. NightMostly cloudy, with a low around 46°F8°C. Windy from the NNW at 13 to 17 mph21 to 28 km/h. 92% chance of rain overnight.
	SaturdayOct 17	49°F9°C Feels 44°F6°C	39°F4°C Feels 32°F0°C	0.01 in0.2 mm· 14%	35%	Drizzle	WNW 13 mph21 km/h
DayPartly cloudy and cool, with a high of 49°F9°C and morning low of 39°F4°C — feels like 43°F6°C. Breezy from the WNW at 13 mph21 km/h. Very dry. NightPartly cloudy, with a low around 40°F5°C. Windy from the WNW at 14 to 17 mph22 to 27 km/h. 14% chance of drizzle.
	SundayOct 18	56°F14°C	44°F7°C Feels 38°F4°C	0 in0.1 mm· 2%	17%	Clear	SW 12 mph19 km/h
DayMostly clear and mild, with a high of 56°F14°C and morning low of 45°F7°C. Breezy from the SW at 12 to 13 mph19 to 20 km/h. Dry air. NightMostly clear, with a low around 44°F7°C. Breezy from the SW at 12 mph19 km/h.
	MondayOct 19	60°F16°C	50°F10°C	0.04 in1.1 mm· 11%	59%	Drizzle	SW 11 mph18 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 51°F10°C. Breezy from the SW at 11 to 12 mph18 to 19 km/h. Dry air. NightMostly cloudy, with a low around 50°F10°C. Breezy from the SW at 11 to 12 mph17 to 19 km/h. 11% chance of drizzle overnight.
	TuesdayOct 20	62°F16°C	52°F11°C	0.03 in0.7 mm· 11%	42%	Drizzle	SW 8 mph13 km/h
DayPartly cloudy and mild, with a high of 62°F16°C and morning low of 52°F11°C. Breezy from the SW at 8 mph12 km/h. Dry air. NightPartly cloudy, with a low around 53°F12°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. 11% chance of drizzle overnight.
	WednesdayOct 21	61°F16°C	51°F11°C	0.02 in0.5 mm· 10%	43%	Drizzle	SSE 8 mph12 km/h
DayPartly cloudy and mild, with a high of 61°F16°C and morning low of 51°F11°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. Dry air. NightPartly cloudy, with a low around 51°F11°C. Breezy from the SSE at 8 to 9 mph12 to 14 km/h. 10% chance of drizzle in the evening.
	ThursdayOct 22	60°F16°C	54°F12°C	0.15 in3.8 mm· 27%	62%	Showers	SW 10 mph15 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 54°F12°C. Breezy from the SW at 10 mph16 km/h. 27% chance of showers in the morning. NightMostly cloudy, with a low around 54°F12°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 24% chance of showers overnight.
	FridayOct 23	57°F14°C	53°F12°C	0.13 in3.4 mm· 23%	64%	Showers	W 11 mph17 km/h
DayMostly cloudy and mild, with a high of 57°F14°C. Breezy from the W at 11 mph17 km/h. 19% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the W at 10 to 11 mph17 to 18 km/h. 23% chance of showers overnight.
	SaturdayOct 24	57°F14°C	51°F11°C	0.11 in2.7 mm· 18%	66%	Drizzle	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 57°F14°C and morning low of 51°F11°C. Breezy from the W at 10 to 11 mph17 to 17 km/h. 17% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 51°F11°C. Breezy from the W at 10 mph16 km/h. 18% chance of drizzle overnight.
	SundayOct 25	56°F13°C	51°F11°C	0.15 in3.8 mm· 28%	63%	Showers	WSW 11 mph17 km/h
DayMostly cloudy and mild, with a high of 56°F13°C. Breezy from the WSW at 11 mph17 km/h. 22% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 51°F11°C. Breezy from the WSW at 10 to 11 mph17 to 17 km/h. 28% chance of showers overnight.
	MondayOct 26	53°F12°C	48°F9°C Feels 44°F7°C	0.12 in3 mm· 25%	62%	Showers	W 10 mph17 km/h
DayMostly cloudy and mild, with a high of 53°F12°C and morning low of 48°F9°C. Breezy from the W at 11 mph17 km/h. 22% chance of showers in the morning. Dry air. NightMostly cloudy, with a low around 49°F9°C. Breezy from the W at 10 mph17 km/h. 25% chance of drizzle overnight.

Nearby Cities

Stoney Creek10 mi16 km Hamilton15 mi24 km St. Catharines16 mi26 km Oakville18 mi29 km Waterdown18 mi30 km Burlington19 mi30 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 43.2001°N, 79.5663°W·Elevation: 88m·Timezone: America/Toronto·Population: 27,314