Thunder Bay Weather Report: A Chilly Start with Warmer Afternoon Ahead

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Thunder Bay Sleeping Giant from Red River Road
Thunder Bay Sleeping Giant from Red River Road

Thunder Bay experiences a brisk and mainly clear morning with a current temperature of -1.7°C, as recorded at Thunder Bay Airport. The day promises a significant shift in weather conditions, transitioning from clear skies to possible showers and thunderstorms by the afternoon.

Today’s Weather Overview:

Current Conditions:

As of 6:00 AM EDT, the temperature at Thunder Bay Airport is -1.7°C with a wind chill making it feel like -4°C. The barometric pressure is at 101.4 kPa but is falling, indicating possible changes in the weather pattern. Humidity is exceptionally high at 97%, with a dew point of -2.1°C. Winds are mild, blowing from the west at 6 km/h, and visibility is excellent at 32 kilometers.

Expected Conditions:

Today starts sunny, but cloudiness will increase around noon followed by a few showers. There’s also a risk of a thunderstorm in the afternoon. The temperature will climb significantly to a high of 14°C, with a moderate UV index of 4. It’s advisable to prepare for sudden weather changes, especially with potential thunderstorms.

Tonight, showers are expected to end late in the evening, but the sky will remain cloudy with a 40% chance of additional showers and an early risk of another thunderstorm. Fog patches will develop overnight. The temperature will be milder with a low of around 4°C.

Tomorrow’s Forecast

Saturday, May 11, will see a mix of sun and cloud. Morning fog patches will dissipate, and winds will become north, reaching 20 km/h and gusting to 40 km/h, then becoming lighter in the afternoon. The high will be warmer at 17°C, with a UV index of 5, indicating moderate sun exposure.

The night will feature cloudy periods with a low of around 5°C.

Sunday, May 12, will continue with a mix of sun and cloud, including a 30% chance of showers, and temperatures will rise further to a high of 24°C. The night will be clear with a low of 3°C.

Wardrobe Recommendations:

Due to the variable weather conditions—from chilly mornings to potentially warm afternoons—layering will be essential today. Include a waterproof jacket and possibly an umbrella to handle the forecasted showers and thunderstorm risk. As temperatures rise, lighter layers will be more comfortable, especially in the sunnier parts of the day.

Weather Trivia:

Thunder Bay is known for its dynamic weather, influenced by its geographical location on Lake Superior. This large body of water can significantly modify local weather, leading to rapid temperature changes and sudden storm conditions.

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