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Weather in Brockville, Ontario, Canada

Now
30 °F

Chilly.


Feels Like: 30 °F
Forecast: 38 / 26 °F
Wind: No wind

Location: Grenadier Island
Current Time: Mar 21, 2026 at 10:14:07 am
Latest Report: Mar 21, 2026 at 9:00 am
Visibility: N/A
Pressure: 30.02 "Hg
Humidity: 87%
Dew Point: 26 °F

Upcoming 5 hours

Now 11:00 am 12:00 pm 1:00 pm 2:00 pm 3:00 pm
30 °F 33 °F 35 °F 36 °F 37 °F 37 °F

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Forecast for the next 48 hours

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  Saturday Sunday
  Morning Afternoon Evening Night Morning Afternoon Evening
Forecast
Temperature 29 °F 37 °F 32 °F 32 °F 33 °F 33 °F 30 °F
Mostly cloudy. Overcast. Light snow. Overcast. Moderate snow. Overcast. Moderate snow. Overcast. Snow. Overcast. Light snow. Mostly cloudy.
Feels Like 29 °F 37 °F 29 °F 24 °F 24 °F 24 °F 21 °F
Wind Speed 3 mph 2 mph 4 mph 9 mph 12 mph 13 mph 11 mph
Wind Direction NW
NE
E
ENE
NE
NNE
NNE
Humidity 85% 61% 78% 89% 91% 83% 81%
Dew Point 25 °F 25 °F 26 °F 29 °F 31 °F 28 °F 25 °F
Visibility 5 mi 5 mi 4 mi 0 mi 2 mi 2 mi 2 mi
Probability of Precipitation 2% 0% 2% 24% 25% 16% 24%
Amount of Rain 0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Amount of Snow 0.00" 0.00" 0.27" 1.75" 1.26" 0.76" 0.24"
* Updated Saturday, March 21, 2026 3:42:42 am Brockville time - Weather by CustomWeather, © 2026

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

Yesterday's weather

Chilly. 32 / 28 °F
Humidity: 86%. Wind: 5 mph from Northeast

More weather last week

Currently at nearby stations

14 °F

Upper Rideau Lake: (31 mi)

Sunny. (2 hours ago)

28 °F

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

Low clouds.

29 °F

Watertown International Airport: (44 mi)

Overcast. (1 hour ago)

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Forecast for the next 2 weeks

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Sun Mon Tue Wed Thu Fri Sat
15
16
17
18
19
20

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Detailed forecast for 14 days