Clarkson, ON 14 Day Weather - WeatherWorld.com
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Clarkson, ON Weather Forecast


Clarkson, ON Weather Forecast Dated: 322 PM Sun Sep 20 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and a stable pattern will dominate.
Sunday, September 20, 2026
Mid-Morning
13°C 56°F
Overcast
Mid-Afternoon
20°C 69°F
Overcast
Early-Evening
18°C 64°F
Overcast
Pleasant near 20°C 69°F, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the N to the NNW at 16 km/h 10 mph.
Monday, September 21, 2026
Mid-Morning
9°C 48°F
Overcast
Mid-Afternoon
13°C 56°F
Overcast
Early-Evening
13°C 56°F
Overcast
Cool and brisk at 13°C 56°F, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the NE to the ENE at 15 km/h 10 mph.
Tuesday, September 22, 2026
Mid-Morning
10°C 50°F
Partly Cloudy
Mid-Afternoon
16°C 60°F
Overcast
Early-Evening
15°C 59°F
Overcast
Comfortable at 16°C 60°F, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the NE to the E at 18 km/h 11 mph. Gusts up to 34 km/h 21 mph.
Wednesday, September 23, 2026
Mid-Morning
12°C 54°F
Partly Cloudy
Mid-Afternoon
17°C 62°F
Sunny
Early-Evening
15°C 59°F
Sunny
Cool with a high near 17°C 62°F, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the ENE to the E at 17 km/h 11 mph. Gusts up to 33 km/h 21 mph.
Thursday, September 24, 2026
Mid-Morning
14°C 57°F
Sunny
Mid-Afternoon
17°C 62°F
Partly Cloudy
Early-Evening
15°C 59°F
Overcast
Refreshing around 17°C 62°F, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds blowing from the E at 21 km/h 13 mph.
Friday, September 25, 2026
Mid-Morning
12°C 54°F
Sunny
Mid-Afternoon
20°C 69°F
Sunny
Early-Evening
17°C 63°F
Sunny
Pleasant near 20°C 69°F, sunny throughout the day, with lower humidity and steady pressure. Winds ESE at 14 km/h 9 mph.
Saturday, September 26, 2026
Mid-Morning
15°C 59°F
Overcast
Mid-Afternoon
21°C 69°F
Partly Cloudy
Early-Evening
18°C 64°F
Partly Cloudy
Comfortable with temperatures reaching 21°C 69°F, partly cloudy in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure.
Sunday, September 27, 2026
Mid-Morning
14°C 58°F
Sunny
Mid-Afternoon
20°C 68°F
Sunny
Early-Evening
17°C 63°F
Sunny
Enjoyable around 20°C 68°F, sunny throughout the day, with steady humidity and steady pressure.
Monday, September 28, 2026
Mid-Morning
15°C 58°F
Sunny
Mid-Afternoon
21°C 69°F
Sunny
Early-Evening
19°C 65°F
Overcast
Mild temperatures up to 21°C 69°F, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds switching from the ESE to the SE at 19 km/h 12 mph. Gusts up to 39 km/h 24 mph.
Tuesday, September 29, 2026
Mid-Morning
13°C 55°F
Light Showers
Mid-Afternoon
14°C 56°F
Overcast
Early-Evening
12°C 55°F
Partly Cloudy
Cool and brisk at 14°C 56°F, early showers breaking for a drier afternoon, with lower humidity and barometric pressure rising. Winds blowing from the W at 21 km/h 13 mph.
Wednesday, September 30, 2026
Mid-Morning
10°C 50°F
Cloudy
Mid-Afternoon
17°C 62°F
Partly Cloudy
Early-Evening
16°C 60°F
Overcast
Comfortable at 17°C 62°F, partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds swinging from the SSW to the S at 12 km/h 8 mph.
Thursday, October 1, 2026
Mid-Morning
16°C 60°F
Partly Cloudy
Mid-Afternoon
19°C 66°F
Sunny
Early-Evening
16°C 61°F
Sunny
Cool with a high near 19°C 66°F, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds out of the W at 18 km/h 11 mph.
Friday, October 2, 2026
Mid-Morning
13°C 55°F
Sunny
Mid-Afternoon
17°C 63°F
Cloudy
Early-Evening
14°C 57°F
Scattered Showers
Refreshing around 17°C 63°F, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the W to the WNW at 15 km/h 9 mph.
Saturday, October 3, 2026
Mid-Morning
12°C 53°F
Partly Cloudy
Mid-Afternoon
15°C 58°F
Overcast
Early-Evening
14°C 56°F
Sunny
Mildly cool near 15°C 58°F, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the WNW to the NW at 12 km/h 8 mph.
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