nearly a month of below normal temperatures in Winnipeg. Since July 18, Winnipeg has only maxed out at 25.2°C... in a period where normal highs are generally between 26 and 27°C. In this period (July 18 to Aug 13), the average high has been 22.3°C, a good 4 degrees below normal for the period. Lows have averaged 9.1°C, also a good 4 degrees below normal for the period.
Over the next few days this will be changing as things begin to shift eastward. Areas that have been hot for the past few weeks will now cool down a bit and areas that have been cold will finally warm up. For the Winnipeg area, highs in the mid 20's are expected today, with temperatures reaching 30°C by Friday. Saturday at this point looks like a scorcher as temperatures rise to the 32 to 34°C range along with moderate to high humidity. Humidex values will likely reach the high 30's and potentially close to 40.
Chances for showers and thunderstorms return to end the weekend. Seasonal to above seasonal temperatures are expected to continue next week.