Midweek Mists Lead into a Cool, Wet Forecast for the Prairie City
WINNIPEG – WEATHER – It’s a foggy start to Wednesday in Winnipeg, and the weather ahead is looking equally moody. If you’re a fan of sunshine, you might want to bottle up any rays you find this morning—because the rest of the week is shaping up to be mostly cloudy with on-and-off showers and seasonally cool temperatures.
Think rain gear, not sunglasses.
Wednesday Morning: Fog, Humidity, and Low Visibility
As of 6:00 AM CDT, Winnipeg Richardson International Airport is reporting fog, with visibility reduced to just 0.6 km—so take it slow on those early commutes. The temperature is sitting at 11.8°C, with a matching dew point, creating 100% humidity. That’s about as damp as it gets without full-on rain. Winds are light from the northwest at 8 km/h, and barometric pressure is steady at 102.1 kPa and rising—a sign of a brief improvement before more unsettled weather rolls in.
Fog patches will clear later this morning, but don’t expect blue skies. The rest of the day will remain mainly cloudy, with a 30% chance of showers late this morning and into the afternoon. Winds will increase from the north to 20 km/h by early afternoon. Today’s high is a cooler-than-normal 20°C, and the UV index is moderate at 5—not much sun, but still worth putting on a bit of SPF if you’re outside.
Tonight: A Bit Dreary with a Chance of Showers
Tonight stays mainly cloudy, with a lingering 30% chance of early evening showers. Winds will ease as the night progresses, becoming light, and temperatures will dip to a mild low of 12°C.
Thursday & Friday: Wet Weather on the Way
Thursday, September 18, will stay mainly cloudy, and winds will shift to the northeast at 20 km/h by late afternoon. The high will be 19°C, and the UV index remains moderate at 5. The real action begins Thursday night, as showers are expected, and the temperature stays mild at 14°C.
Friday, September 19, continues the wet theme with showers all day and a steady high of 19°C. Showers will persist into Friday night, with a low of 15°C.
Saturday: More Rain on the Horizon
The start of the weekend doesn’t offer much relief. Saturday, September 20, will be cloudy with a 70% chance of showers, and the high will remain around 20°C. While not cold, the dampness could make it feel cooler. Saturday nightstays cloudy with a low of 13°C, continuing the soggy stretch.
What to Wear?
Today is all about the layers and waterproof footwear. You’ll want a light rain jacket handy, especially this afternoon. Foggy mornings call for high visibility if you’re cycling or walking, and if you’re holding out hope for dry socks this week… maybe invest in a good pair of rain boots.
Weather Trivia: Foggy Prairie Mornings
Fog in Winnipeg may not be as common as in coastal cities, but when it does roll in, it’s usually due to radiation fog—a result of cool overnight temps and high humidity. It’s often gone by mid-morning, but it can lead to some dramatic prairie sunrise views… if you can see through it.





