Sioux Lookout greets the day under light rain and fully saturated air, but clearer skies are on the horizon. After a damp start, a mix of sun and cloud will develop, though a lingering chance of showers and possible thunderstorm remains for the morning hours. Warmer, sunnier weather is expected midweek before a return to showers by Friday.
Today’s Weather Overview
Current Conditions
As observed at 6:00 AM CDT at Sioux Lookout Airport:
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Temperature: 14.8°C
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Condition: Light Rain
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Wind: East at 5 km/h
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Pressure: 101.7 kPa and steady
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Humidity: 100% (fully saturated air)
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Dew Point: 14.8°C
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Visibility: 13 km
Today will feature a mix of sun and cloud with a 30% chance of early morning showers and the risk of a thunderstorm. Temperatures are forecast to rise to 25°C, with a humidex of 27. The UV index will reach 7, classified as high, so UV protection is recommended when skies brighten.
Tomorrow’s Forecast
Expected Conditions
Wednesday, July 9, 2025
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Daytime: A sunny day with warmer temperatures and no precipitation expected.
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High: 26°C
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Humidex: 29
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UV Index: 8 (Very High)
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Night: Clear skies persist.
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Low: 16°C
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Thursday, July 10, 2025
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Daytime: A mix of sun and cloud continues the pleasant stretch.
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High: 28°C
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Night: Skies turn cloudy, with a 40% chance of showers overnight.
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Low: 17°C
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Friday, July 11, 2025
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Daytime: Cloudy skies dominate, with a 60% chance of rain during the day.
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High: 25°C
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Night: Showers continue.
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Low: 15°C
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Wardrobe Recommendations
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Today: Waterproof footwear and a light jacket are smart choices early on. Keep an umbrella handy just in case. Layer for mild but muggy conditions.
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Wednesday–Thursday: Shorts, t-shirts, and sun protection are ideal. With rising UV levels, sunscreen and a hat are essential.
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Friday: Prepare for rain—carry a raincoat or umbrella and consider water-resistant shoes.
Weather Trivia
Did you know?
Sioux Lookout is located in a transition zone between the boreal forest and prairie ecosystems, making it one of the most storm-prone areas in Northern Ontario during summer. It regularly experiences more than 25 thunderstorm days per season, especially during humid July afternoons.
