Rainfall Warning in Effect — Up to 50 mm of Rain Expected with Risk of Localized Flooding

WINNIPEG – WEATHER – If you’re in Winnipeg this weekend, be prepared for a significant soaking. Environment Canada has issued a Rainfall Warning for the city, with heavy, persistent rain expected to begin Saturday evening and continue into Sunday afternoon.

A slow-moving frontal system will stall over southern Manitoba, bringing up to 50 mm of rain, localized flooding, and gusty winds. The stormy weather clears gradually late Sunday, but cooler, showery conditions remain into Monday.

⚠️ Rainfall Warning Details – Issued by Environment Canada

• Location: City of Winnipeg and southern Manitoba

• Total Rainfall Expected: Up to 50 mm

• Timing: Beginning Saturday evening, tapering off Sunday afternoon

• Hazards:

  • Flash flooding and water pooling on roads

  • Localized flooding in low-lying areas

  • Washouts near creeks, rivers, and culverts

• Precautions:

  • Avoid driving through flooded areas

  • Secure outdoor drains

  • Clear gutters and downspouts

  • Stay weather-aware for potential watches or warnings

Current Conditions (as of 5:00 AM CDT – Winnipeg Richardson Int’l)

• Temperature: 13.6°C

• Dew Point: 13.1°C

• Humidity: 97%

• Wind: WNW at 18 km/h

• Visibility: 24 km

• Pressure: 100.2 kPa (rising)

• Condition: Mostly Cloudy

Weekend Forecast Breakdown

Saturday, October 4:

• Morning: Fog patches dissipating.

• Afternoon: Increasing clouds, with 30% chance of showers late day.

• Winds north 20 km/h, gusting to 40 km/h.

• High: 20°C

• UV Index: 4 (moderate)

Tonight:

• Early evening: 30% chance of showers.

• Later evening: Rain at times heavy, with 10–20 mm expected overnight.

• Wind north 20 km/h, gusting to 40 km/h.

• Low: 11°C

Sunday, October 5:

• Morning: Heavy rain continues, tapering off midday.

• Afternoon: Cloudy with 60% chance of showers.

• Rainfall total: 10–20 mm more.

• Wind north 30 km/h, gusting to 50, becoming light by late day.

• High: 12°C, falling to 8°C in the afternoon.

• UV Index: 1 (low)

Sunday Night:

• Scattered showers, continued cloud cover.

• Low: +4°C

Monday, October 6:

• Cloudy with 60% chance of lingering showers.

• High: 11°C

Monday Night:

• Cloudy periods

• Low: +1°C

Wardrobe & Travel Tips

• Saturday:

  • Early in the day: light fall layers.

  • Rain gear (umbrella, waterproof jacket, boots) essential for the evening.

• Sunday:

  • Heavy-duty rain protection needed. Expect wet roads, puddles, and possibly street flooding.

  • Cooler air means a layered approach with waterproof outerwear.

• Monday:

  • Warm and waterproof layers with fall temperatures returning to seasonal normals.

Aviation & Road Conditions

• Pilots: Expect MVFR to IFR conditions Saturday night through Sunday due to low ceilings, heavy rain, and gusty winds.

• Motorists: Hydroplaning risk on highways and reduced visibility in downpours. Slow down and keep headlights on.

Weather Trivia

Did you know?
October rainfall events in Winnipeg are usually brief and light, but fall frontal systems like this can produce rainfall totals similar to summer storms. A 50 mm total would place this event in the top 5 wettest October rainfalls in recent decades. The last comparable fall rainstorm in Winnipeg occurred in October 2019, when 46 mm fell in under 24 hours.