Current Conditions

Cornwall, Ontario

58°F14°C

Light Rain

Wind

N 7 mph12 km/h

Humidity

93%

Cloud Cover

100%

As of Monday, October 12, 2026 at 5:41 PM EDT

Today's Outlook

Day

Overcast and mild, with a high of 60°F16°C and morning low of 54°F12°C. Breezy from the WSW at 8 mph13 km/h. 84% chance of light rain in the afternoon.

Night

Overcast, with a low around 50°F10°C. Breezy from the NE at 7 to 9 mph12 to 14 km/h. 100% chance of light rain in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Light Rain	High 60°F16°C	Low 50°F10°CFeels 46°F8°C	Precip 0.15 in3.8 mm100%	Cloud 97%	Wind W 8 mph13 km/h	Monday: Overcast and mild, with a high of 60°F16°C and morning low of 54°F12°C. Breezy from the WSW at 8 mph13 km/h. 84% chance of light rain in the afternoon. Monday Night: Overcast, with a low around 50°F10°C. Breezy from the NE at 7 to 9 mph12 to 14 km/h. 100% chance of light rain in the evening.
Rain	High 49°F9°CFeels 45°F7°C	Low 44°F6°CFeels 38°F3°C	Precip 1.51 in38.3 mm100%	Cloud 100%	Wind NE 8 mph13 km/h	Tuesday: Overcast and cool, with a high of 47°F9°C. Breezy from the NE at 8 to 10 mph13 to 16 km/h. 100% chance of rain in the morning. Dry air. Tuesday Night: Overcast, with a low around 44°F6°C. Breezy from the NE at 8 to 10 mph13 to 17 km/h. 98% chance of rain overnight.
Light Rain	High 51°F11°C	Low 43°F6°CFeels 40°F4°C	Precip 0.1 in2.6 mm77%	Cloud 99%	Wind W 7 mph11 km/h	Wednesday: Overcast and mild, with a high of 51°F11°C and morning low of 44°F7°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. 33% chance of drizzle in the morning. Dry air. Wednesday Night: Overcast, with a low around 43°F6°C. Breezy from the WNW at 7 to 9 mph11 to 14 km/h. 77% chance of light rain overnight.
Cloudy	High 52°F11°C	Low 42°F6°CFeels 38°F3°C	Precip 0 in0.1 mm1%	Cloud 83%	Wind NNW 6 mph10 km/h	Thursday: Mostly cloudy and mild, with a high of 52°F11°C and morning low of 42°F6°C. Breezy from the NNW at 6 to 8 mph9 to 12 km/h. Dry air. Thursday Night: Overcast, with a low around 42°F6°C. Breezy from the NNW at 7 to 9 mph11 to 15 km/h.
Rain	High 46°F8°CFeels 41°F5°C	Low 39°F4°CFeels 32°F0°C	Precip 0.61 in15.6 mm98%	Cloud 90%	Wind NW 9 mph14 km/h	Friday: Overcast and cool, with a high of 46°F8°C. Breezy from the NNW at 9 to 10 mph14 to 16 km/h. 98% chance of rain in the morning. Dry air. Friday Night: Overcast, with a low around 39°F4°C. Breezy from the NW at 9 to 11 mph15 to 18 km/h. 64% chance of light rain overnight.
Freezing Drizzle	High 41°F5°CFeels 34°F1°C	Low 34°F1°CFeels 25°F-4°C	Precip 0.06 in1.4 mm35%	Cloud 51%	Wind W 11 mph18 km/h	Saturday: Mostly cloudy and cool, with a high of 41°F5°C and morning low of 34°F1°C — feels like 34°F1°C. Breezy from the W at 12 to 14 mph20 to 22 km/h. 18% chance of freezing drizzle in the afternoon. Very dry. Saturday Night: Partly cloudy, with a low around 34°F1°C. Frost likely. Breezy from the W at 11 to 12 mph17 to 19 km/h. 35% chance of freezing drizzle overnight.
Freezing Drizzle	High 46°F8°CFeels 42°F6°C	Low 31°F-1°CFeels 23°F-5°C	Precip 0.01 in0.3 mm19%	Cloud 24%	Wind W 7 mph12 km/h	Sunday: Mostly clear and cool, with a high of 46°F8°C and morning low of 31°F-1°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h. Very dry. Sunday Night: Mostly clear, with a low around 31°F-1°C. Frost likely. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 19% chance of freezing drizzle overnight.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	MondayOct 12	60°F16°C	50°F10°C Feels 46°F8°C	0.15 in3.8 mm· 100%	97%	Light Rain	W 8 mph13 km/h
DayOvercast and mild, with a high of 60°F16°C and morning low of 54°F12°C. Breezy from the WSW at 8 mph13 km/h. 84% chance of light rain in the afternoon. NightOvercast, with a low around 50°F10°C. Breezy from the NE at 7 to 9 mph12 to 14 km/h. 100% chance of light rain in the evening.
	TuesdayOct 13	49°F9°C Feels 45°F7°C	44°F6°C Feels 38°F3°C	1.51 in38.3 mm· 100%	100%	Rain	NE 8 mph13 km/h
DayOvercast and cool, with a high of 47°F9°C. Breezy from the NE at 8 to 10 mph13 to 16 km/h. 100% chance of rain in the morning. Dry air. NightOvercast, with a low around 44°F6°C. Breezy from the NE at 8 to 10 mph13 to 17 km/h. 98% chance of rain overnight.
	WednesdayOct 14	51°F11°C	43°F6°C Feels 40°F4°C	0.1 in2.6 mm· 77%	99%	Light Rain	W 7 mph11 km/h
DayOvercast and mild, with a high of 51°F11°C and morning low of 44°F7°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. 33% chance of drizzle in the morning. Dry air. NightOvercast, with a low around 43°F6°C. Breezy from the WNW at 7 to 9 mph11 to 14 km/h. 77% chance of light rain overnight.
	ThursdayOct 15	52°F11°C	42°F6°C Feels 38°F3°C	0 in0.1 mm· 1%	83%	Cloudy	NNW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 52°F11°C and morning low of 42°F6°C. Breezy from the NNW at 6 to 8 mph9 to 12 km/h. Dry air. NightOvercast, with a low around 42°F6°C. Breezy from the NNW at 7 to 9 mph11 to 15 km/h.
	FridayOct 16	46°F8°C Feels 41°F5°C	39°F4°C Feels 32°F0°C	0.61 in15.6 mm· 98%	90%	Rain	NW 9 mph14 km/h
DayOvercast and cool, with a high of 46°F8°C. Breezy from the NNW at 9 to 10 mph14 to 16 km/h. 98% chance of rain in the morning. Dry air. NightOvercast, with a low around 39°F4°C. Breezy from the NW at 9 to 11 mph15 to 18 km/h. 64% chance of light rain overnight.
	SaturdayOct 17	41°F5°C Feels 34°F1°C	34°F1°C Feels 25°F-4°C	0.06 in1.4 mm· 35%	51%	Freezing Drizzle	W 11 mph18 km/h
DayMostly cloudy and cool, with a high of 41°F5°C and morning low of 34°F1°C — feels like 34°F1°C. Breezy from the W at 12 to 14 mph20 to 22 km/h. 18% chance of freezing drizzle in the afternoon. Very dry. NightPartly cloudy, with a low around 34°F1°C. Frost likely. Breezy from the W at 11 to 12 mph17 to 19 km/h. 35% chance of freezing drizzle overnight.
	SundayOct 18	46°F8°C Feels 42°F6°C	31°F-1°C Feels 23°F-5°C	0.01 in0.3 mm· 19%	24%	Freezing Drizzle	W 7 mph12 km/h
DayMostly clear and cool, with a high of 46°F8°C and morning low of 31°F-1°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h. Very dry. NightMostly clear, with a low around 31°F-1°C. Frost likely. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 19% chance of freezing drizzle overnight.
	MondayOct 19	57°F14°C	32°F0°C Feels 25°F-4°C	0.01 in0.3 mm· 3%	54%	Partly Cloudy	S 8 mph13 km/h
DayMostly cloudy and mild, with a high of 57°F14°C and morning low of 33°F1°C. Breezy from the S at 8 mph13 km/h. Dry air. NightMostly cloudy, with a low around 32°F0°C. Breezy from the S at 8 to 9 mph14 to 15 km/h.
	TuesdayOct 20	59°F15°C	44°F7°C Feels 39°F4°C	0.05 in1.2 mm· 18%	57%	Drizzle	SW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 44°F7°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 18% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 44°F7°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 12% chance of drizzle before dawn.
	WednesdayOct 21	57°F14°C	40°F5°C Feels 35°F2°C	0.02 in0.4 mm· 6%	42%	Partly Cloudy	WSW 7 mph11 km/h
DayPartly cloudy and mild, with a high of 57°F14°C and morning low of 40°F5°C. Light wind from the W around 6 mph10 km/h. Dry air. NightPartly cloudy, with a low around 40°F5°C. Breezy from the SW at 7 mph11 km/h.
	ThursdayOct 22	56°F13°C	40°F5°C Feels 35°F2°C	0.16 in4.1 mm· 33%	69%	Light Freezing Rain	SSW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 56°F13°C and morning low of 41°F5°C. Breezy from the SSW at 8 mph12 km/h. 28% chance of light freezing rain in the morning. Dry air. NightMostly cloudy, with a low around 40°F5°C. Breezy from the SSW at 8 mph13 km/h. 33% chance of light freezing rain overnight.
	FridayOct 23	53°F12°C	43°F6°C Feels 38°F4°C	0.15 in3.8 mm· 31%	71%	Light Rain	WSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 53°F12°C and morning low of 44°F7°C. Breezy from the W at 8 mph13 km/h. 29% chance of light rain in the morning. Dry air. NightMostly cloudy, with a low around 43°F6°C. Breezy from the WSW at 8 mph13 km/h. 31% chance of showers overnight.
	SaturdayOct 24	54°F12°C	42°F5°C Feels 37°F3°C	0.1 in2.5 mm· 21%	65%	Freezing Drizzle	WSW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 54°F12°C and morning low of 42°F6°C. Breezy from the WSW at 8 mph12 km/h. 20% chance of freezing drizzle in the morning. Dry air. NightMostly cloudy, with a low around 42°F5°C. Breezy from the WSW at 8 mph13 km/h. 21% chance of freezing drizzle overnight.
	SundayOct 25	52°F11°C	42°F6°C Feels 37°F3°C	0.08 in2 mm· 18%	67%	Freezing Drizzle	WSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 52°F11°C and morning low of 42°F6°C. Breezy from the WSW at 8 mph13 km/h. 18% chance of freezing drizzle in the morning. Dry air. NightMostly cloudy, with a low around 42°F6°C. Breezy from the WSW at 8 mph13 km/h. 16% chance of freezing drizzle overnight.
	MondayOct 26	50°F10°C	41°F5°C Feels 36°F2°C	0.1 in2.5 mm· 26%	68%	Freezing Drizzle	WSW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 50°F10°C and morning low of 41°F5°C. Breezy from the WSW at 8 mph12 km/h. 26% chance of freezing drizzle in the morning. Dry air. NightMostly cloudy, with a low around 41°F5°C. Breezy from the WSW at 8 mph12 km/h. 22% chance of freezing drizzle overnight.

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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 45.0181°N, 74.7281°W·Elevation: 59m·Timezone: America/Toronto·Population: 48,821