The climate of Eastern Ontario is humid continental with large seasonal variation. Snow and ice are dominant during the winter season. Summers are fairly warm and humid, usually lasting a little longer than winter does. The average July maximum temperature is 27C (80F). Temperatures rarely exceed 35C (95F), but during periods of hot weather, high humidity is often an aggravating factor.

Spring and fall are changabale seasons, prone to extremes in temperature and unpredictable swings in conditions. So when you visit here, make sure you bring clothes that can be worn in layers. Cornwall is generally a flat plain, dotted with some extensive woodlots and marshes, but is primarily farmland.

Current Cornwall Weather

Observed at Saint-Anicet on 2010-07-30 11:00:00

18°C
	Feels Like		Wind	WNW 13 km/
	Humidity	59 %	Pressure	101.5 kPa rising
	Dew Point	9.6°C	Visibility
	Air Quality		Temperature	17.8°C

Short Term Forecast

	Friday	Friday Night	Saturday	Sunday	Monday
	A Mix Of Sun And Cloud	Clear	Sunny	A Mix Of Sun And Cloud	A Mix Of Sun And Cloud
Low		10°C		12°C	16°C
High	21°C		24°C	28°C	28°C

Detailed Cornwall Weather Forecast

Friday	Sunny. Becoming a mix of sun and cloud this afternoon. Wind becoming northwest 20 km/h this afternoon. High 21. UV index 8 or very high. Forecast issued 11:00 AM EDT Friday 30 July 2010
Friday Night	Clear. Low 10. Forecast issued 11:00 AM EDT Friday 30 July 2010
Saturday	Sunny. High 24. Forecast issued 11:00 AM EDT Friday 30 July 2010
Sunday	A mix of sun and cloud. Low 12. High 28. Forecast issued 11:00 AM EDT Friday 30 July 2010
Monday	A mix of sun and cloud. Low 16. High 28. Forecast issued 11:00 AM EDT Friday 30 July 2010
Tuesday	Showers. Low 18. High 27. Forecast issued 11:00 AM EDT Friday 30 July 2010
Wednesday	Cloudy with 60 percent chance of showers. Low 20. High 27. Forecast issued 11:00 AM EDT Friday 30 July 2010
Thursday	A mix of sun and cloud. Low 19. High 29. Forecast issued 11:00 AM EDT Friday 30 July 2010