THUNDER BAY – WEATHER DESK – Sioux Lookout is starting Monday with light rain and temperatures just above freezing. The day will stay unsettled, with snow, rain, and a brief risk of freezing rain early this morning.

Today’s Weather Overview

Current Conditions

At 6:00 AM CDT at Sioux Lookout Airport, it was 3.5°C with light rain. Humidity was 78%, the dew point was 0.0°C, and visibility was 24 km.

Winds were light from the southeast at 5 km/h, while pressure was 101.9 kPa and falling.

Forecast Overview

Expected Conditions

Today will be cloudy, with periods of snow or rain beginning early this morning, then changing to rain this afternoon. There is a risk of freezing rain early this morning.

Snowfall may reach 2 cm, with rainfall amounts of 5 to 10 mm. Winds will become northeast at 20 km/h, gusting to 40, and the high will reach 5°C.

Tonight, rain mixed with snow will change to snow near midnight before ending before morning. Another 5 mm of rainand 2 cm of snow are possible. North winds will blow at 20 km/h, gusting to 40, with a low near 0°C.

Tuesday will be mainly cloudy with north winds at 20 km/h, gusting to 40 and a high of 6°C. Tuesday night turns colder, with cloudy periods and a low of -5°C.

Wardrobe Recommendations

This is a day for a waterproof jacket, warm layers, and footwear with good traction. Roads, sidewalks, and steps may be slippery early due to the freezing rain risk, and again tonight as rain changes to snow.

Weather Trivia

Spring storms in Northwestern Ontario often bring several precipitation types in one day. Sioux Lookout’s forecast today is a good example: freezing rain risk, snow, rain, then snow again tonight.

Overview:
Sioux Lookout weather update for April 27, 2026: light rain, periods of snow or rain, freezing rain risk, gusty north winds, and colder temperatures tonight.