Gravenhurst

District Municipality of Muskoka, Ontario, Canada

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Current Weather

21°

Overcast

Feels Like: 21°

Min: 18°

Max: 24°

The next few hours will be overcast, with today reaching 24°C and dropping to 14°C. The coming days will be drizzle

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Hourly Forecast

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Today
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Daylight Hours

06:55

Sunrise

19:32

Sunset

12 hours 36 minutes of sunlight today

Moon

Waning Crescent

04:51

Moonrise

18:59

Moonset

Daily Forecast

Today

18°
24°

Thursday

13°
19°

Friday

21°

Saturday

11°
24°

Sunday

15°
22°

Monday

12°
21°

Tuesday

16°
22°

Wednesday

13°
20°

Thursday

11°
20°

Friday

21°

Air Quality Data Available

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UV Index

No protection needed
1 Low
Low Extreme

Humidity

83% Humid
Low High

Weather in Gravenhurst today, September 09, 2026

Gravenhurst stays under cloudy skies on September 09, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The morning sky stays heavily clouded, with cover near 100% around 10:00. Grey conditions set the early tone before any later change.

Temperatures climb from an overnight low near 18°C toward a daytime high of about 24°C. The air stays humid, with relative humidity between 77% and 94% and the peak around 20:00. Expect gentle winds, highest near 16:00 at 6.1 km/h.

Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 11.7 km, briefly nearer 3.1 km. Daylight runs from 06:55 to 19:32, lasting 12 hours 36 minutes of sunlight today.

Taken together, overcast skies in Gravenhurst on September 09, 2026 favour indoor or covered options, with temperatures near 24°C.

Frequently asked questions about weather in Gravenhurst

How warm does it get in Gravenhurst?

The warmest month in Gravenhurst is July, with average high temperatures of 25°C. The average temperature during this period is around 20°C.

How cold does it get in Gravenhurst?

The coldest month in Gravenhurst is January, with average low temperatures of -11°C. The average temperature during this period is around -8°C.

What is the wettest time of year in Gravenhurst?

The wettest month in Gravenhurst is August, with an average of 123mm of precipitation.

What is the driest time of year in Gravenhurst?

The driest month in Gravenhurst is February, with an average of 80mm of precipitation.

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Metric (°C, km/h)