THUNDER BAY – Weather – Thunder Bay begins Saturday under light rain and heavy humidity, with visibility reduced and skies grey. However, the day promises improvement—showers will taper off this afternoon, and by tonight skies will begin to clear.
A sunny and stable stretch is expected through Sunday and Monday.
Today’s Weather Overview
Current Conditions – 8:00 AM EDT
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Temperature: 15.0°C
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Humidity: 99%
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Dew Point: 14.8°C
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Wind: Southwest at 8 km/h
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Pressure: 101.0 kPa (rising)
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Visibility: 6 km (due to rain and low cloud)
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Sky: Light Rain
Forecast Details
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Morning: 30% chance of lingering showers turns into steady rain, then becomes 40% chance of light showers by afternoon
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Thunderstorm Risk: Possible this morning and into early afternoon
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Rainfall Total: 10–20 mm possible
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High: 22°C | Humidex: 29
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UV Index: 4 – Moderate (but increasing with clearing skies)
Tomorrow’s Forecast
Sunday, July 6
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Morning: Clear and sunny
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Afternoon: Winds ease and skies stay bright
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High: 22°C | Humidex: 25
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Wind: Northeast 20 km/h, becoming light
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UV Index: 9 – Very High
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Night: Clear skies, low of 10°C
Monday, July 7
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Daytime: Sunny with continued highs near 22°C
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Evening: Cloudy periods with a 30% chance of showers, low of 12°C
Wardrobe Recommendations
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Today: Waterproof jacket or umbrella for morning/early afternoon. By evening, transition to light, breathable clothes as humidity lingers.
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Sunday–Monday: Dress for warm sun – short sleeves, sunglasses, and sunscreen are a must. Keep a light jacket handy for cool mornings and evenings.
Health & Safety Tips
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Driving Caution: With reduced visibility and wet roads this morning, allow extra travel time and increase following distance.
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Thunderstorm Alert: Be aware of sudden downpours or gusty winds – seek shelter if skies darken or thunder is heard.
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UV Alert Tomorrow: With a UV index of 9, use SPF 30+ and reapply often.
Weather Trivia
Thunder Bay’s highest one-day July rainfall was 64.3 mm, set in 1988. While today’s rainfall totals (10–20 mm) are much lower, the combination of saturated ground and high humidity can still lead to minor pooling and drainage delays.
