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Gravenhurst, ON — 3 hour detailed weather forecast


ON, Canada » Gravenhurst


Forecast for today, Monday, May 18, 2026
Detailed forecast - 3 hours intervals

23:00

Overcast
+15°
feels like: +15°
Overcast
Relative humidity: 78%, pressure: 741 mm
Precipitations: 0.0 mm
Wind: 4 km/h, east
02:00

Light showers
+14°
feels like: +14°
Light showers
Relative humidity: 95%, pressure: 741 mm
Precipitations: 2.7 mm
Wind: 11 km/h, southeast
05:00

Showers
+14°
feels like: +14°
Showers
Relative humidity: 100%, pressure: 740 mm
Precipitations: 1.6 mm
Wind: 11 km/h, southeast
08:00

Partly cloudy
+16°
feels like: +16°
Partly cloudy
Relative humidity: 99%, pressure: 739 mm
Precipitations: 0.1 mm
Wind: 11 km/h, south
11:00

Partly cloudy
+23°
feels like: +23°
Partly cloudy
Relative humidity: 72%, pressure: 740 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
14:00

Partly cloudy
+28°
feels like: +29°
Partly cloudy
Relative humidity: 53%, pressure: 739 mm
Precipitations: 0.1 mm
Wind: 18 km/h, southwest
17:00

Chance of thunderstorms
+27°
feels like: +28°
Chance of thunderstorms
Relative humidity: 63%, pressure: 738 mm
Precipitations: 0.2 mm
Wind: 14 km/h, southwest
20:00

Showers
+22°
feels like: +23°
Showers
Relative humidity: 81%, pressure: 740 mm
Precipitations: 10.6 mm
Wind: 7 km/h, southwest
23:00

Light showers
+20°
feels like: +20°
Light showers
Relative humidity: 92%, pressure: 740 mm
Precipitations: 0.3 mm
Wind: 11 km/h, south