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Forecast Information Radar Information
Cornwall, Ontario, Canada  Lat: 45.03N, Lon: 74.74W
Current Conditions
Updated:
Sun & Moon Information:
Temp: N/A
Humidity: N/A
Wind Speed: N/A
Barometer: N/A
Dewpoint: N/A
Heat Index: N/A
Wind Chill: N/A
Civil Twilight: 6:58 AM EST Moon Phase:
Waxing Crescent Moon
Waxing Crescent Moon
Sunrise: 7:30 AM EST
Sunset: 4:46 PM EST
Civil Twilight: 5:18 PM EST
Forecast for Cornwall, Ontario:
Dated: 1000 UTC JAN 19 2026
  
TODAY TONIGHT TUESDAY TUESDAY
NIGHT
WEDNESDAY WEDNESDAY
NIGHT
THURSDAY
Blowing Snow Blowing Snow Sunny Cloudy Periods Chance of Snow Flurries Partly Cloudy
Blowing
Snow
Blowing
Snow
Sunny Cloudy
Periods
Chance
Of
Snow
Flurries Partly
Cloudy
Hi: -5°C
Lo: -13°C Hi: -10°C
Lo: -14°C
Lo: -14°C Hi: -6°C
Lo: -11°C
Lo: -7°C Hi: -3°C
Lo: -12°C
Pop: 40% Pop: 60% Pop: 60% Pop: 40%
ZoneCast:
Dated: 1000 UTC JAN 19 2026
Today...Flurries and snow squalls. Local amount 5 cm. Local blowing snow late this afternoon. Wind becoming southwest 30 km/h gusting to 60 this afternoon. High minus 5. Wind chill minus 14 this morning and minus 9 this afternoon.
Tonight...Flurries and snow squalls ending near midnight then partly cloudy with 40 percent chance of flurries. Local amount 2 cm. Local blowing snow. Wind southwest 30 km/h gusting to 60. Low minus 13. Wind chill minus 14 this evening and minus 21 overnight.
Tuesday...Mainly sunny. Wind west 20 km/h gusting to 40. High minus 10. Wind chill near minus 22. Uv index 1 or low.
Tuesday Night...Cloudy periods. Low minus 14.
Wednesday...Cloudy with 60 percent chance of snow. High minus 6.
Wednesday Night...Cloudy with 60 percent chance of flurries. Low minus 7.
Thursday...A mix of sun and cloud with 40 percent chance of flurries. High minus 3.
Thursday Night...Cloudy periods. Low minus 15.
Friday...A mix of sun and cloud with 30 percent chance of flurries. High minus 10.
Friday Night...Cloudy periods with 40 percent chance of flurries. Low minus 18.
Saturday...A mix of sun and cloud. High minus 13.
Saturday Night...Cloudy periods with 30 percent chance of flurries. Low minus 23.
Sunday...A mix of sun and cloud with 30 percent chance of flurries. High minus 15.

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