Rainy Start, But Prairie Sunshine Makes a Comeback
WINNIPEG – WEATHER – If you’re heading west to Winnipeg for the weekend, you might want to pack both an umbrella and your sunglasses—because this forecast has a bit of everything.
While there is always something to do in Winnipeg, this weekend, expect the Prairie sky to be starting grey, soggy, and moody, but hang tight: brighter, warmer days are on the horizon by the end of the weekend.
Thursday: Drizzly Start, Showery Finish
As of 6:00 AM CDT, it’s a mostly cloudy morning at Winnipeg Richardson International Airport, with a current temperature of 13.4°C and humidity sitting at 89%. There’s a damp feel to the air, as you might expect when the dew point is 11.6°C. A northeast wind at 10 km/h adds a bit of chill, and visibility is solid at 24 km.
The barometric pressure is at 102.3 kPa and falling, suggesting that the approaching moisture-laden system isn’t done with us yet.
Today’s forecast brings a 30 percent chance of drizzle this morning, escalating to a 60 percent chance of showers late this afternoon. The high will only reach 17°C, with a moderate UV index of 4—not a beach day, but not freezing either.
Tonight: More Rain Rolls In
Tonight, the clouds stick around, along with a 60 percent chance of showers continuing into the evening. The overnight low will be 13°C, keeping things mild but damp.
Friday: A Washout in the Making
Friday, September 19, will stay cloudy with a 60 percent chance of showers throughout the day. The high will once again hover at 17°C, and you’ll likely need waterproof footwear and a decent raincoat if you plan to be outside.
The UV index will hold at 4, but it’s not likely to be needed unless the clouds surprise us with a sudden break.
Friday night ramps up the rainfall with a shift to steady rain, and the overnight low will sit at 14°C—a mild but soggy setup for the weekend.
Saturday: Rain Keeps Falling
Saturday, September 20, is expected to bring periods of rain throughout the day, so it’s the ideal time to catch up on indoor plans—art gallery, museum, or a cozy café afternoon, perhaps? The high will rise slightly to 18°C, but any warmth will likely be overshadowed by the damp conditions.
Saturday night keeps the rain chances going, with a 60 percent chance of showers and a low of 14°C.
Sunday & Monday: The Turnaround You’ve Been Waiting For
Sunday, September 21, is your silver lining—literally. Skies will clear, and sunshine returns with a warmer high of 22°C. It’s shaping up to be a beautiful day for outdoor events, strolls through Assiniboine Park, or a late-season backyard BBQ.
Sunday night will be clear, with an overnight low of 12°C, setting the stage for an even better start to the new week.
Monday, September 22, brings sunny skies and a high of 23°C, making it feel more like early September than the edge of autumn. Monday night will feature cloudy periods and a cool, comfortable low of 10°C.
What to Wear?
For Thursday through Saturday: bring rain gear—umbrellas, waterproof shoes, and jackets are a must. By Sunday and Monday, it’s back to light layers and sunglasses. Winnipeg’s weather is flipping the switch from wet to wonderful, just in time to salvage your weekend plans.
Weather Trivia: Winnipeg’s “Boomerang” Falls
Did you know Winnipeg can experience a quick return of sunshine within 24–36 hours of a major rainfall system thanks to fast-moving prairie air masses? This means grey and rainy Saturdays can be followed by sun-filled Sundays—just like this week’s forecast.
