Cooler weather is on tap earlier this week as a series of cold front usher in a much cooler air mass. While temperatures will remain only slightly below seasonal averages, some areas will stand a risk of frost.
This Week
Today will be cool and breezy as a series of cold front brings cooler weather to southern Manitoba. The first cold front passed through late Sunday, with a secondary cold front coming through later today. The initial cold front dropped temperatures into the teens for today, and was followed by fairly extensive cloud cover. The second cold front will bring a chance of showers to most of southern Manitoba today as it passes through and picks up any residual moisture. Parts of western Manitoba that clear out tonight may experience light frost as temperatures drop rapidly after sunset. Winds will be gusty out of the north-west at 30 km/h gusting to 50 km/h.
Following today’s frontal passage, we’ll experience one of the coolest days in awhile on Tuesday. High temperatures will only be in the mid teens. Some cloud cover is expected to develop during the day, but no precipitation is expected, save for perhaps an isolated light shower. There will be a risk of frost again Tuesday night, but it should be more isolated and mainly in traditionally frost-prone low-lying areas. Most parts of southern Manitoba should remain just above freezing due to a weak southerly flow overnight. Daytime winds will be westerly at 20 km/h.
Temperatures will begin to warm on Wednesday as we see a southwesterly flow begin to develop over southern Manitoba. Highs should climb up toward the 20°C mark under mainly sunny skies.
Long Range
The long range forecast suggests that summer weather may not be quite over yet! Weather models hints at more days with temperatures in the mid or perhaps upper twenties before September is over.