Fort Frances – WEATHER – A Heat Warning and severe thunderstorm risk with humidex near 39°C and 40+ mm rain possible. Weekend brings cooler, drier air.
A Special Weather Statement and Heat Warning are in effect for Fort Frances, Couchiching, Mitaanjigamiing, Naicatchewenin, and Nigigoonsiminikaaning First Nations today, July 4, 2025. With temperatures near 30°C, a humidex reaching 39, and the potential for heavy thunderstorms with hail and flooding, residents are urged to stay alert and take safety precautions.
Today’s Weather Overview
Current Conditions
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Temperature: 17.7°C
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Humidity: 92%
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Wind: Northwest 13 km/h, gusting to 36 km/h
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Pressure: 101.3 kPa (rising)
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Visibility: Unavailable due to early morning fog/cloud
Forecast Details
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Showers taper off this morning, then mainly cloudy with another round of showers and thunderstorms possible this afternoon
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Rainfall: 15 to 25 mm today, plus 10–15 mm tonight
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Temperature High: 30°C
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Humidex: 39 — extremely humid and uncomfortable
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UV Index: 8 — very high
Tomorrow’s Forecast
Expected Conditions
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Saturday, July 5:
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Cloudy early with 40% chance of morning showers
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Afternoon clearing, north winds gusting to 40 km/h
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High: 25°C | Low: 14°C
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Humidex: More comfortable at 27
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Sunday, July 6:
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A pleasant day with a mix of sun and cloud
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High: 23°C | Low: 13°C
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Wardrobe Recommendations
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Today: Lightweight, breathable clothes are essential. Consider rain gear and waterproof footwear for intermittent downpours.
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Saturday & Sunday: Light layering is ideal — cooler nights call for a hoodie or light jacket, especially in breezy conditions.
Health & Safety Advisory
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Heat Risk:
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Stay hydrated with water — avoid caffeine or alcohol
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Schedule outdoor activities in the morning or evening
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Monitor for heat exhaustion (dizziness, nausea, dark urine) and take immediate action if symptoms occur
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Heat stroke is a 911 emergency — red skin, confusion, or unconsciousness require urgent medical care
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Storm Preparedness:
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Storms could bring hail, strong winds, and localized flooding
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Avoid low-lying areas during downpours
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Stay indoors during thunderstorm activity and unplug sensitive electronics
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Visit Ontario.ca/floods for localized flood updates and resources.
Weather Trivia
Fort Frances once recorded over 80 mm of rain in less than 36 hours in July 2002, causing drainage issues across town and temporary road closures. This event was driven by a nearly stationary storm cell—similar to the pattern expected today.
