Cornwall, ON

Current Conditions

Not observed

ForecastIssued: 5:00 AM EDT Monday 23 October 2017

Detailed ForecastIssued: 5:00 AM EDT Monday 23 October 2017

Mainly sunny
Today
21°C 70°F
Mainly sunny. Wind becoming south 20 km/h gusting to 40 near noon. High 21. UV index 3 or moderate.
Showers
Tonight
18°C 64°F
Increasing cloudiness. Showers beginning overnight. Risk of a thunderstorm overnight. Wind southeast 20 km/h gusting to 40. Low 18.
Showers
Tue, 24 Oct
17°C 63°F
Showers ending near noon then a mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm in the morning. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 in the afternoon. Temperature steady near 17.
Night:  Cloudy with 40 percent chance of showers. Low 10.
Chance of showers
Wed, 25 Oct
15°C 59°F
Cloudy with 40 percent chance of showers. High 15.
Night:  Cloudy with 30 percent chance of showers. Low 7.
A mix of sun and cloud
Thu, 26 Oct
14°C 57°F
A mix of sun and cloud. High 14.
Night:  Cloudy periods. Low plus 5.
Chance of showers
Fri, 27 Oct
16°C 61°F
A mix of sun and cloud with 30 percent chance of showers. High 16.
Night:  Cloudy periods with 30 percent chance of showers. Low plus 5.
Chance of showers
Sat, 28 Oct
C 48°F
Cloudy with 30 percent chance of showers. High 9.
Night:  Cloudy with 30 percent chance of showers. Low plus 2.
Chance of showers
Sun, 29 Oct
C 45°F
A mix of sun and cloud with 30 percent chance of showers. High 7.
Normals:
Max 11°C.52°F. Min C.36°F.
Sunrise:
7:25 EDT
Sunset:
18:01 EDT

Averages and extremes

Yesterday's Data

Max:
21.0°C 69.8°F
Min:
6.5°C 43.7°F
Total Precipitation:
0.0 mm 0.00 in

What we are doing

Features

Summer 2017: Significant weather across Canada

By analyzing weather events, ECCC is collecting more information as to how our climate is changing.

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