Thunder Risk Today, but Glorious Sunshine for July 1st Celebrations

Saturday Starts Warm and Humid with Storms on the Radar

Winnipeg is waking up to a warm, muggy morning this Saturday, June 28, with a temperature of 18.6°C and mostly cloudy skies, recorded at 5:00 AM from Winnipeg Richardson International Airport. The air is thick with 89% humidity, and the dew point is a sticky 16.7°C, which means yes — that’s definitely sweat and not just your morning coffee.

A southerly wind at 22 km/h is helping stir the air, and visibility sits at 24 km. However, the barometric pressure is falling at 100.8 kPa, a sure sign that instability is building.

Today will bring a mix of sun and cloud and a 60% chance of showers or thunderstorms late this afternoon. The temperature will spike to 29°C, and with the humidex of 35, it’s officially tropical. Slap on that sunscreen — the UV index hits 8, rated very high.

Saturday Night: Stormy to Start, Then Calmer Skies

There’s still a 60% chance of showers or thunderstorms early this evening, but skies are expected to clear as the night progresses. Winds will stay southwest at 20 km/h, becoming light later on. Overnight low: a comfortable 17°C.

Sunday: Windy but Mostly Dry

Sunday brings better odds for outdoor fun. Sunny in the morning, with a 30% chance of showers and a risk of a thunderstorm late in the afternoon. Temperatures will be more moderate, hitting 26°C with a humidex of 28. Winds pick up significantly — expect it to be blustery from the west at 30 km/h, gusting up to 50. Secure that patio furniture!

Sunday night will see cloudy periods with a 30% chance of showers, and an overnight low of 16°C.

Canada Day Monday: As Good as It Gets

If you’re planning to wave the flag, fire up the grill, or head to Assiniboine Park, Monday, June 30, is shaping up to be your day. Sunny, dry, and 27°C, with light winds and minimal humidity — the kind of weather that deserves its own anthem.

And for Canada Day itself (Tuesday, July 1)? Even better! Full sun, a high of 27°C, and a crisp overnight low of 13°C. That’s chef’s kiss summer weather perfection.

What to Wear and Pack for the Long Weekend

For Saturday: light, breathable clothing is a must. Consider rain gear or an umbrella if you’re out in the late afternoon. Sunday will still be warm but windy, so something wind-resistant might come in handy. Monday and Tuesday? That’s tank-top, shorts, and sunglasses weather — just toss in some SPF and a hat, and you’re ready for fireworks, festivals, and flags.

Winnipeg Weather Trivia

Did you know? Winnipeg holds the record for Canada’s hottest Canada Day — a sweltering 40.6°C on July 1, 1937! While we’re not quite hitting that mark this year, the 2025 weekend forecast still delivers sunshine and sizzle — minus the heatwave drama.