Stonewall, Manitoba is seeing a cool start to the week with a mix of sun and cloud on Monday, but residents should be ready for a shift as showers and a chance of thunderstorms are expected to roll in on Tuesday. Environment Canada is forecasting a high of 22 degrees C today, with a very high UV index of 8, so sun protection is important. Tonight will be mainly cloudy with a low of 13 degrees C.
Tuesday will bring cloudy skies and showers starting in the morning, with a risk of thunderstorms late in the morning and into the afternoon. The weather agency is calling for rainfall amounts between 10 and 15 mm, and the wind will pick up from the east at 20 km/h. The high temperature will reach 18 degrees C, and the UV index will be moderate at 3.
The unsettled weather comes as a relief for some after Stonewall was hit by an extreme storm just under two weeks ago. On June 9 and 10, the community was drenched with over 255 mm of rain, causing severe flooding and overwhelming the town’s sewage system. That storm system also brought confirmed tornado activity, wind gusts up to 130 km/h, and hail as big as tennis balls across southern Manitoba, leaving more than 25,000 hydro customers without power.
Looking ahead, conditions are expected to improve by mid-week. Wednesday is forecast to clear up with a high of 22 degrees C, and Thursday will be sunny with temperatures climbing to 24 degrees C. According to long-range outlooks, summer 2026 on the Prairies is shaping up to be warmer and wetter than usual, with the hottest stretches predicted for late June and early to mid-August.
