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Casey, ON Weather Forecast
Casey, ON Weather Forecast Dated: 854 PM Thu Sep 17 2026
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Thursday, September 17, 2026
Mid-Morning
10°C 50°F
Overcast
Mid-Afternoon
16°C 61°F
Sunny
Early-Evening
16°C 61°F
Overcast
Refreshing around 16°C 61°F, overcast in the morning, sunny in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling.
Friday, September 18, 2026
Mid-Morning
5°C 42°F
Sunny
Mid-Afternoon
10°C 50°F
Sunny
Early-Evening
8°C 47°F
Sunny
Cool and brisk at 10°C 50°F, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the NNW to the NW at 7 km/h 4 mph.
Saturday, September 19, 2026
Mid-Morning
4°C 40°F
Overcast
Mid-Afternoon
14°C 57°F
Cloudy
Early-Evening
12°C 53°F
Sunny
Chilly near 14°C 57°F, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, September 20, 2026
Mid-Morning
8°C 47°F
Scattered Showers
Mid-Afternoon
15°C 60°F
Cloudy
Early-Evening
9°C 48°F
Sunny
Cool with a high near 15°C 60°F, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds switching from the WNW to the N at 16 km/h 10 mph.
Monday, September 21, 2026
Mid-Morning
3°C 38°F
Overcast
Mid-Afternoon
11°C 51°F
Overcast
Early-Evening
9°C 49°F
Overcast
Brisk around 11°C 51°F, overcast throughout the day, with lower humidity and barometric pressure falling.
Tuesday, September 22, 2026
Mid-Morning
8°C 46°F
Partly Cloudy
Mid-Afternoon
16°C 60°F
Overcast
Early-Evening
13°C 55°F
Scattered Showers
Mildly cool near 16°C 60°F, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds moving from the E to the SE at 16 km/h 10 mph. Gusts up to 39 km/h 24 mph.
Wednesday, September 23, 2026
Mid-Morning
10°C 49°F
Fog
Mid-Afternoon
11°C 52°F
Fog
Early-Evening
13°C 56°F
Scattered Showers
Chilly near 11°C 52°F, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds swinging from the SE to the SSE at 13 km/h 8 mph. Gusts up to 32 km/h 20 mph.
Thursday, September 24, 2026
Mid-Morning
12°C 54°F
Scattered Showers
Mid-Afternoon
11°C 52°F
Light Showers
Early-Evening
11°C 52°F
Scattered Showers
Crisp with a high near 11°C 52°F, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the SW to the WSW at 20 km/h 12 mph. Gusts up to 41 km/h 26 mph.
Friday, September 25, 2026
Mid-Morning
6°C 42°F
Scattered Showers
Mid-Afternoon
6°C 43°F
Overcast
Early-Evening
6°C 41°F
Overcast
Cold with a high near 6°C 43°F, locally heavy downpours at times, with lower humidity and barometric pressure rising. Winds NW at 22 km/h 13 mph. Gusts up to 35 km/h 22 mph.
Saturday, September 26, 2026
Mid-Morning
5°C 42°F
Overcast
Mid-Afternoon
14°C 56°F
Overcast
Early-Evening
12°C 54°F
Sunny
Cool and brisk at 14°C 56°F, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the W to the WSW at 8 km/h 5 mph.
Sunday, September 27, 2026
Mid-Morning
12°C 53°F
Overcast
Mid-Afternoon
21°C 70°F
Overcast
Early-Evening
18°C 63°F
Scattered Showers
Pleasant near 21°C 70°F, scattered downpours possible, with lower humidity and barometric pressure falling. Winds moving from the SW to the SSW at 19 km/h 12 mph. Gusts up to 43 km/h 27 mph.
Monday, September 28, 2026
Mid-Morning
13°C 55°F
Scattered Showers
Mid-Afternoon
17°C 63°F
Scattered Showers
Early-Evening
19°C 66°F
Sunny
Cool with a high near 17°C 63°F, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds SW at 18 km/h 11 mph. Gusts up to 40 km/h 25 mph.
Tuesday, September 29, 2026
Mid-Morning
15°C 59°F
Partly Cloudy
Mid-Afternoon
19°C 66°F
Overcast
Early-Evening
15°C 60°F
Light Showers
Refreshing around 19°C 66°F, drier conditions through late afternoon before showers move in, with lower humidity and steady pressure. Winds shifting from the W to the NW at 17 km/h 10 mph. Gusts up to 33 km/h 21 mph.
Wednesday, September 30, 2026
Mid-Morning
4°C 39°F
Sunny
Mid-Afternoon
10°C 50°F
Sunny
Early-Evening
8°C 45°F
Sunny
Cool and brisk at 10°C 50°F, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the NW at 19 km/h 12 mph.
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