Northwestern Ontario Weather

Official weather conditions from Environment Canada.

Search for your town or choose from the list below.

Town lookup

Current conditions

Sioux Lookout

Sioux Lookout - Eastern Lac Seul

Mostly Cloudy

Mostly Cloudy
14.2°C

Updated: 2026-09-12T05:00:00Z

Open official page

Wind

11 km/h, gust 28 km/h

Humidity

78%

Pressure

100.3 kPa rising

Visibility

N/A

Forecast periods

Next forecast blocks

Tonight

Mainly cloudy. 40 percent chance of showers this evening and after midnight with risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 after midnight. Low 11.

Temp: Low 11.

Wind: W, 10 km/h

Saturday

Cloudy. 40 percent chance of showers in the afternoon. Wind west 30 km/h gusting to 50. High 14. UV index 3 or moderate.

Temp: High 14.

Wind: W, 20 km/h, gust 40 km/h

Saturday night

Cloudy with 40 percent chance of showers. Wind northwest 30 km/h gusting to 50. Low 6.

Temp: Low 6.

Wind: NW, 30 km/h, gust 50 km/h

Sunday

A mix of sun and cloud with 30 percent chance of showers. High 15.

Temp: High 15.

Sunday night

Clear. Low 6.

Temp: Low 6.

Monday

A mix of sun and cloud with 40 percent chance of showers. High 15.

Temp: High 15.