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


Waterdown, ON Weather Forecast Dated: 646 PM Fri Sep 18 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.
Friday, September 18, 2026
Mid-Morning
17°C 62°F
Sunny
Mid-Afternoon
22°C 71°F
Overcast
Early-Evening
19°C 66°F
Overcast
Pleasant near 22°C 71°F, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds out of the NE at 12 km/h 7 mph.
Saturday, September 19, 2026
Mid-Morning
15°C 59°F
Overcast
Mid-Afternoon
17°C 63°F
Overcast
Early-Evening
16°C 61°F
Overcast
Mildly cool near 17°C 63°F, overcast throughout the day, with steady humidity and barometric pressure falling. Winds switching from the E to the ENE at 21 km/h 14 mph.
Sunday, September 20, 2026
Mid-Morning
15°C 60°F
Scattered Showers
Mid-Afternoon
18°C 65°F
Overcast
Early-Evening
17°C 63°F
Overcast
Comfortable at 18°C 65°F, locally heavy downpours at times, with steady humidity and steady pressure. Winds ENE at 17 km/h 11 mph.
Monday, September 21, 2026
Mid-Morning
13°C 55°F
Scattered Showers
Mid-Afternoon
14°C 57°F
Cloudy
Early-Evening
14°C 57°F
Overcast
Crisp with a high near 14°C 57°F, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the ENE to the E at 27 km/h 17 mph. Gusts up to 38 km/h 24 mph.
Tuesday, September 22, 2026
Mid-Morning
14°C 57°F
Overcast
Mid-Afternoon
15°C 59°F
Overcast
Early-Evening
14°C 57°F
Overcast
Refreshing around 15°C 59°F, overcast throughout the day, with increasing humidity and steady pressure. Winds blowing from the E at 32 km/h 20 mph. Gusts up to 42 km/h 26 mph.
Wednesday, September 23, 2026
Mid-Morning
12°C 54°F
Scattered Showers
Mid-Afternoon
11°C 53°F
Heavy Rain
Early-Evening
12°C 53°F
Heavy Rain
Cool and brisk at 11°C 53°F, locally heavy downpours at times, with increasing humidity and steady pressure. Winds E at 25 km/h 16 mph. Gusts up to 40 km/h 25 mph.
Thursday, September 24, 2026
Mid-Morning
13°C 55°F
Light Showers
Mid-Afternoon
13°C 56°F
Light Showers
Early-Evening
13°C 55°F
Overcast
Chilly near 13°C 56°F, intermittent showers through midday, easing by evening, with steady humidity and steady pressure. Winds switching from the E to the SE at 17 km/h 11 mph.
Friday, September 25, 2026
Mid-Morning
12°C 54°F
Scattered Showers
Mid-Afternoon
15°C 59°F
Sunny
Early-Evening
15°C 58°F
Sunny
Cool with a high near 15°C 59°F, scattered downpours possible, with lower humidity and steady pressure. Winds moving from the E to the NW at 20 km/h 12 mph. Gusts up to 33 km/h 21 mph.
Saturday, September 26, 2026
Mid-Morning
14°C 57°F
Sunny
Mid-Afternoon
17°C 63°F
Sunny
Early-Evening
15°C 58°F
Sunny
Refreshing around 17°C 63°F, sunny throughout the day, with lower humidity and barometric pressure falling.
Sunday, September 27, 2026
Mid-Morning
12°C 54°F
Sunny
Mid-Afternoon
20°C 68°F
Sunny
Early-Evening
17°C 63°F
Sunny
Mild with a high of 20°C 68°F, sunny in the morning, becoming partly cloudy through the afternoon and evening, with increasing humidity and barometric pressure falling. Winds swinging from the WSW to the SW at 17 km/h 11 mph.
Monday, September 28, 2026
Mid-Morning
16°C 60°F
Sunny
Mid-Afternoon
23°C 73°F
Sunny
Early-Evening
20°C 68°F
Sunny
Pleasant near 23°C 73°F, sunny throughout the day, with lower humidity and steady pressure. Winds out of the SW at 20 km/h 12 mph.
Tuesday, September 29, 2026
Mid-Morning
19°C 67°F
Overcast
Mid-Afternoon
24°C 75°F
Sunny
Early-Evening
23°C 73°F
Sunny
Comfortable with temperatures reaching 24°C 75°F, overcast in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds blowing from the SW at 14 km/h 9 mph.
Wednesday, September 30, 2026
Mid-Morning
20°C 68°F
Sunny
Mid-Afternoon
25°C 77°F
Overcast
Early-Evening
23°C 72°F
Overcast
Enjoyable around 25°C 77°F, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds SSW at 17 km/h 11 mph.
Thursday, October 1, 2026
Mid-Morning
19°C 66°F
Overcast
Mid-Afternoon
20°C 68°F
Scattered Showers
Early-Evening
16°C 61°F
Light Showers
Mild temperatures up to 20°C 68°F, scattered downpours possible, with steady humidity and steady pressure. Winds moving from the WSW to the NW at 20 km/h 12 mph.
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