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Weather in Brockville, Ontario, Canada

Now
20 °F

Cold.


Feels Like: 15 °F
Forecast: 31 / 15 °F
Wind: 3 mph from South

Location: Grenadier Island
Current Time: Jan 21, 2026 at 7:20:07 pm
Latest Report: Jan 21, 2026 at 6:00 pm
Visibility: N/A
Pressure: 29.96 "Hg
Humidity: 87%
Dew Point: 17 °F
Location of BrockvilleLocation

Upcoming 5 hours

Now8:00 pm9:00 pm10:00 pm11:00 pm12:00 am
20 °F24 °F25 °F26 °F27 °F28 °F

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Forecast for the next 48 hours

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 WednesdayThursdayFriday
 EveningNightMorningAfternoonEveningNightMorning
Forecast
Temperature25 °F30 °F27 °F28 °F17 °F15 °F13 °F
Snow. Overcast.Light snow. Overcast.Light snow showers. Broken clouds.Light snow. Partly cloudy.Mostly clear.Cloudy.Mostly cloudy.
Feels Like12 °F19 °F15 °F16 °F3 °F1 °F-2 °F
Wind Speed16 mph15 mph15 mph16 mph13 mph12 mph13 mph
Wind DirectionS
SSW
WSW
WSW
SW
WSW
W
Humidity80%81%76%62%68%70%68%
Dew Point20 °F25 °F20 °F17 °F8 °F7 °F5 °F
Visibility2 mi0 mi7 mi2 mi6 mi6 mi5 mi
Probability of Precipitation15%16%2%27%4%0%0%
Amount of Rain0.00"0.00"0.00"0.00"0.00"0.00"0.00"
Amount of Snow0.58"0.37"0.17"0.17"0.00"0.00"0.00"
* Updated Wednesday, January 21, 2026 2:42:41 pm Brockville time - Weather by CustomWeather, © 2026

14 day forecast, day-by-dayHour-by-hour forecast for next week

Yesterday's weather

Cold. 18 / 8 °F
Humidity: 55%. Wind: 4 mph from West

More weather last week

Currently at nearby stations

13 °F

Upper Rideau Lake: (31 mi)

Light snow. Low clouds. (3 hours ago)

22 °F

Fort Drum / Wheeler-Sack U. S. Army Airfield: (37 mi)

Overcast.

26 °F

Watertown International Airport: (44 mi)

Light snow. Overcast.

More weather in Canada

Forecast for the next 2 weeks

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SunMonTueWedThuFriSat
18
19
20
21

View historic weather

6
7

Detailed forecast for 14 days