Current Conditions

Cornwall, Ontario

76°F24°C

Clear

Wind

WSW 9 mph15 km/h

Humidity

43%

Cloud Cover

48%

As of Thursday, July 23, 2026 at 5:23 PM EDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 76°F24°C. Breezy from the WSW at 10 to 11 mph16 to 17 km/h.

Night

Mostly clear, with a low around 62°F17°C. Breezy from the SW at 9 mph15 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
ThursdayJul 23	Clear	High 76°F24°C	Low 62°F17°C	Precip 0 in0.1 mm2%	Cloud 32%	Wind WSW 10 mph16 km/h	Thursday: Mostly cloudy and warm, with a high of 76°F24°C. Breezy from the WSW at 10 to 11 mph16 to 17 km/h. Thursday Night: Mostly clear, with a low around 62°F17°C. Breezy from the SW at 9 mph15 km/h.
FridayJul 24	Clear	High 82°F28°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 25%	Wind SW 6 mph10 km/h	Friday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. Friday Night: Mostly clear, with a low around 55°F13°C. Breezy from the SSW at 6 to 8 mph10 to 13 km/h.
SaturdayJul 25	Clear	High 86°F30°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 36%	Wind SSW 4 mph6 km/h	Saturday: Partly cloudy and warm, with a high of 86°F30°C and morning low of 65°F19°C. Light wind from the SSW around 4 mph6 km/h. Saturday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the S around 4 mph7 km/h.
SundayJul 26	Drizzle	High 84°F29°C	Low 63°F17°C	Precip 0.02 in0.6 mm22%	Cloud 47%	Wind SW 4 mph7 km/h	Sunday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Light wind from the SW around 4 mph7 km/h. 13% chance of drizzle in the afternoon. Sunday Night: Mostly cloudy, with a low around 63°F17°C. Light wind from the SSW around 4 mph7 km/h. 22% chance of drizzle in the evening.
MondayJul 27	Showers	High 82°F28°C	Low 65°F18°C	Precip 0.13 in3.3 mm48%	Cloud 59%	Wind SSW 5 mph7 km/h	Monday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 69°F21°C. Light wind from the SW around 4 mph7 km/h. 48% chance of showers throughout the day. Humid. Monday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the SSW around 5 mph8 km/h. 48% chance of showers throughout the night.
TuesdayJul 28	Rain	High 77°F25°C	Low 67°F19°C	Precip 0.43 in11 mm75%	Cloud 82%	Wind SSW 5 mph8 km/h	Tuesday: Overcast and warm, with a high of 77°F25°C and morning low of 69°F21°C. Light wind from the S around 5 mph8 km/h. 75% chance of rain throughout the day. Humid. Tuesday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the SSW around 5 mph8 km/h. 73% chance of light rain throughout the night.
WednesdayJul 29	Light Rain	High 74°F23°C	Low 64°F18°C	Precip 0.35 in8.8 mm53%	Cloud 70%	Wind NNW 6 mph10 km/h	Wednesday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 66°F19°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 53% chance of light rain throughout the day. Wednesday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the NW around 6 mph9 km/h. 46% chance of showers throughout the night.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	ThursdayJul 23	76°F24°C	62°F17°C	0 in0.1 mm· 2%	32%	Clear	WSW 10 mph16 km/h
DayMostly cloudy and warm, with a high of 76°F24°C. Breezy from the WSW at 10 to 11 mph16 to 17 km/h. NightMostly clear, with a low around 62°F17°C. Breezy from the SW at 9 mph15 km/h.
	FridayJul 24	82°F28°C	55°F13°C	0 in0 mm· —	25%	Clear	SW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. NightMostly clear, with a low around 55°F13°C. Breezy from the SSW at 6 to 8 mph10 to 13 km/h.
	SaturdayJul 25	86°F30°C	55°F13°C	0 in0 mm· —	36%	Clear	SSW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 65°F19°C. Light wind from the SSW around 4 mph6 km/h. NightPartly cloudy, with a low around 55°F13°C. Light wind from the S around 4 mph7 km/h.
	SundayJul 26	84°F29°C	63°F17°C	0.02 in0.6 mm· 22%	47%	Drizzle	SW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Light wind from the SW around 4 mph7 km/h. 13% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 63°F17°C. Light wind from the SSW around 4 mph7 km/h. 22% chance of drizzle in the evening.
	MondayJul 27	82°F28°C	65°F18°C	0.13 in3.3 mm· 48%	59%	Showers	SSW 5 mph7 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 69°F21°C. Light wind from the SW around 4 mph7 km/h. 48% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 65°F18°C. Light wind from the SSW around 5 mph8 km/h. 48% chance of showers throughout the night.
	TuesdayJul 28	77°F25°C	67°F19°C	0.43 in11 mm· 75%	82%	Rain	SSW 5 mph8 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 69°F21°C. Light wind from the S around 5 mph8 km/h. 75% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 67°F19°C. Light wind from the SSW around 5 mph8 km/h. 73% chance of light rain throughout the night.
	WednesdayJul 29	74°F23°C	64°F18°C	0.35 in8.8 mm· 53%	70%	Light Rain	NNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 66°F19°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 53% chance of light rain throughout the day. NightMostly cloudy, with a low around 64°F18°C. Light wind from the NW around 6 mph9 km/h. 46% chance of showers throughout the night.
	ThursdayJul 30	78°F26°C	60°F16°C	0.11 in2.9 mm· 27%	50%	Drizzle	WNW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 64°F18°C. Light wind from the WNW around 6 mph10 km/h. 27% chance of drizzle throughout the day. NightPartly cloudy, with a low around 60°F16°C. Light wind from the W around 6 mph9 km/h. 22% chance of drizzle throughout the night.
	FridayJul 31	81°F27°C	60°F16°C	0.06 in1.5 mm· 13%	45%	Drizzle	WSW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 65°F18°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 13% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 60°F16°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 13% chance of drizzle throughout the night.
	SaturdayAug 1	81°F27°C	63°F17°C	0.12 in3.1 mm· 31%	55%	Showers	SW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 31% chance of showers throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 30% chance of showers throughout the night.
	SundayAug 2	81°F27°C	63°F17°C	0.12 in3.1 mm· 28%	55%	Showers	SW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Light wind from the WSW around 6 mph9 km/h. 28% chance of showers throughout the day. NightMostly cloudy, with a low around 63°F17°C. Light wind from the SW around 6 mph9 km/h. 21% chance of drizzle throughout the night.
	MondayAug 3	82°F28°C	63°F17°C	0.08 in2.1 mm· 19%	54%	Drizzle	SW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 67°F20°C. Breezy from the WSW at 6 to 7 mph10 to 12 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 63°F17°C. Light wind from the SSW around 6 mph10 km/h. 15% chance of drizzle throughout the night.
	TuesdayAug 4	82°F28°C	64°F18°C	0.13 in3.2 mm· 25%	59%	Showers	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the SW at 7 mph11 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 21% chance of drizzle throughout the night.
	WednesdayAug 5	80°F27°C	65°F18°C	0.15 in3.8 mm· 30%	57%	Showers	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 68°F20°C. Breezy from the WSW at 7 to 8 mph11 to 12 km/h. 30% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 19% chance of showers throughout the night.
	ThursdayAug 6	79°F26°C	64°F18°C	0.21 in5.3 mm· 29%	59%	Showers	SW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 67°F19°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 29% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Light wind from the SW around 6 mph10 km/h. 27% chance of showers throughout the night.

Nearby Cities

Les Coteaux30 mi49 km Salaberry-de-Valleyfield33 mi53 km Saint-Lazare39 mi63 km Vaudreuil-Dorion43 mi69 km Clarence-Rockland46 mi74 km Orléans48 mi78 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: 45.0181°N, 74.7281°W·Elevation: 59m·Timezone: America/Toronto·Population: 48,821