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


Arnprior, ON Weather Forecast Dated: 516 PM Fri Sep 18 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.
Friday, September 18, 2026
Mid-Morning
14°C 57°F
Sunny
Mid-Afternoon
18°C 64°F
Overcast
Early-Evening
14°C 56°F
Cloudy
Refreshing around 18°C 64°F, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the NNW to the NNE at 13 km/h 8 mph.
Saturday, September 19, 2026
Mid-Morning
8°C 46°F
Overcast
Mid-Afternoon
16°C 60°F
Sunny
Early-Evening
12°C 54°F
Sunny
Mildly cool near 16°C 60°F, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, September 20, 2026
Mid-Morning
10°C 50°F
Overcast
Mid-Afternoon
18°C 65°F
Sunny
Early-Evening
14°C 57°F
Sunny
Comfortable at 18°C 65°F, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds switching from the ESE to the N at 16 km/h 10 mph. Gusts up to 32 km/h 20 mph.
Monday, September 21, 2026
Mid-Morning
7°C 44°F
Overcast
Mid-Afternoon
13°C 56°F
Overcast
Early-Evening
11°C 51°F
Overcast
Crisp with a high near 13°C 56°F, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the N to the NNE at 9 km/h 6 mph.
Tuesday, September 22, 2026
Mid-Morning
7°C 45°F
Overcast
Mid-Afternoon
15°C 59°F
Overcast
Early-Evening
11°C 52°F
Overcast
Refreshing around 15°C 59°F, overcast throughout the day, with steady humidity and steady pressure. Winds out of the E at 14 km/h 9 mph.
Wednesday, September 23, 2026
Mid-Morning
8°C 46°F
Sunny
Mid-Afternoon
17°C 62°F
Cloudy
Early-Evening
13°C 56°F
Sunny
Mildly cool near 17°C 62°F, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the E at 17 km/h 10 mph.
Thursday, September 24, 2026
Mid-Morning
10°C 50°F
Sunny
Mid-Afternoon
18°C 65°F
Overcast
Early-Evening
14°C 57°F
Cloudy
Comfortable at 18°C 65°F, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling.
Friday, September 25, 2026
Mid-Morning
9°C 48°F
Scattered Showers
Mid-Afternoon
8°C 46°F
Scattered Showers
Early-Evening
7°C 45°F
Scattered Showers
Crisp with a high near 8°C 46°F, scattered downpours possible, with steady humidity and barometric pressure falling. Winds WNW at 25 km/h 16 mph. Gusts up to 47 km/h 29 mph.
Saturday, September 26, 2026
Mid-Morning
12°C 53°F
Sunny
Mid-Afternoon
20°C 68°F
Sunny
Early-Evening
12°C 52°F
Overcast
Mild temperatures up to 20°C 68°F, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, September 27, 2026
Mid-Morning
7°C 45°F
Sunny
Mid-Afternoon
19°C 67°F
Sunny
Early-Evening
16°C 61°F
Sunny
Mildly cool near 19°C 67°F, cloudy through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds switching from the WNW to the SW at 12 km/h 7 mph.
Monday, September 28, 2026
Mid-Morning
12°C 54°F
Overcast
Mid-Afternoon
23°C 74°F
Sunny
Early-Evening
20°C 68°F
Overcast
Pleasant near 23°C 74°F, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds blowing from the WSW at 21 km/h 13 mph. Gusts up to 35 km/h 21 mph.
Tuesday, September 29, 2026
Mid-Morning
17°C 63°F
Cloudy
Mid-Afternoon
22°C 72°F
Light Showers
Early-Evening
20°C 68°F
Light Showers
Comfortable with temperatures reaching 22°C 72°F, dry early, with showers continuing through afternoon and evening, with increasing humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
18°C 65°F
Overcast
Mid-Afternoon
27°C 81°F
Overcast
Early-Evening
23°C 74°F
Light Showers
Quite warm around 27°C 81°F, drier conditions through late afternoon before showers move in, with lower humidity and barometric pressure falling. Winds swinging from the WSW to the SW at 12 km/h 8 mph.
Thursday, October 1, 2026
Mid-Morning
17°C 63°F
Light Showers
Mid-Afternoon
18°C 65°F
Light Showers
Early-Evening
14°C 58°F
Heavy Rain Showers
Mildly cool near 18°C 65°F, persistent showers off and on through the day, with steady humidity and steady pressure. Winds shifting from the SSW to the WNW at 12 km/h 8 mph.
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