Steinbach, Manitoba is in for a warm but unsettled start to the week, and residents should keep an umbrella handy as unsettled weather moves in. Environment Canada‘s forecast for Monday, August 24, 2026 calls for a high of 26°C, with cloudy skies and a 60 percent chance of showers near noon before a mix of sun and cloud moves in, along with a risk of a thunderstorm. Tonight, mainly cloudy skies bring a 70 percent chance of thunderstorms in the evening.
The humidex is expected to reach 32, which Environment Canada says can cause some discomfort for people spending time outdoors. The UV index is forecast to be 7, or high, so anyone heading outside should wear sunscreen, a hat, and sunglasses.
Showers are expected to continue into Tuesday, with a risk of thunderstorms and wind gusts up to 50 km/h. Conditions should improve by mid-week, with clearing skies and a return to seasonal daytime highs around 25°C.
While the official forecast calls for showers, an independent weather service notes the potential for more severe weather across southern Manitoba on Monday. Instant Weather Inc. reports that conditions could support supercell thunderstorms, large hail, and damaging wind gusts, with the greatest tornado risk west of Winnipeg. Residents should monitor local alerts and be prepared for rapidly changing conditions.
There are currently no active road advisories listed on Manitoba 511, so travel on provincial highways remains clear as of Monday afternoon. Steinbach sits in the Red River Valley, an area known for summer heat and humidity, and August is typically a transition month as temperatures gradually cool toward fall norms.
