Sioux Lookout and Lac Seul face a heat warning today with highs of 29°C and a humidex of 38°C. Thunderstorms are possible in the afternoon

Sioux Lookout – Weather – Sioux Lookout and Lac Seul are under a heat warning today, with temperatures reaching 29°C and feeling as high as 38°C due to the humidex.

The day started with mainly sunny skies, but expect increasing cloudiness by late morning, bringing a 30% chance of showers in the afternoon, along with a risk of thunderstorms. Winds will be from the south at 20 km/h, gusting up to 40 km/h, adding to the warm and somewhat unstable atmosphere.

What’s Ahead
Tonight, temperatures will cool down to around 19°C, but the risk of showers and thunderstorms continues, with a 60% chance of rain through the evening. The start of the week brings slightly cooler weather, with Monday seeing a high of 26°C and a mix of sun and cloud, though there’s still a chance of morning showers and thunderstorms.

By midweek, temperatures will dip further to around 22°C, with more clouds and potential showers continuing through Thursday.

Wardrobe Tip
Given the high temperatures and risk of storms, it’s a good idea to dress in light, breathable clothing today but keep a rain jacket or umbrella handy. Stay hydrated and avoid strenuous activities during the hottest parts of the day.

Fun Fact
Lac Seul, a large lake near Sioux Lookout, is well-known for its excellent fishing opportunities, particularly for walleye—so even with the warm weather, it’s a popular spot for anglers!