Thunder Bay Weather: Cloudy with Showers and Thunderstorm Risk

McVicar's Creek in Thunder Bay
McVicar's Creek in Thunder Bay

Current Weather Observations for Thunder Bay

As of 6:28 AM EDT, Thursday, June 13, 2024

At Thunder Bay Airport, the temperature is currently 10.4°C under foggy conditions. The humidity is at 100%, with a matching dew point of 10.4°C, indicating fully saturated air. Winds are blowing from the west-northwest at 8 km/h. Visibility is significantly reduced to 0.4 km due to the dense fog. The barometric pressure stands at 100.2 kPa and is falling.

Detailed Weather Forecast for Today and Tomorrow

Today: Thursday, June 13, 2024

Thunder Bay will experience mainly cloudy skies today with a 70% chance of showers and a risk of thunderstorms. Fog patches will dissipate by this morning. Winds will shift to the northwest at 20 km/h. The high temperature will reach 22°C, with a humidex making it feel like 26°C. The UV index will be moderate at 5, so some sun protection is recommended.


The evening will be partly cloudy with a 30% chance of showers early on. The skies will clear overnight. Winds from the northwest at 20 km/h will become light by the evening. The overnight low will be 7°C, providing a cool and clear night.

Tomorrow: Friday, June 14, 2024

Friday will be mainly sunny with a high of 20°C. The UV index will be high at 7, indicating a need for strong sun protection during the day.


Clear skies will persist through the night, with temperatures dropping to a low of 11°C, ensuring a pleasant and cool evening.

Extended Outlook

Saturday, June 15, 2024: The day will feature a mix of sun and cloud with a 30% chance of showers. The high will be 26°C. During the night, expect cloudy periods with a 30% chance of showers and a low of 15°C.

Sunday, June 16, 2024: The weather will be sunny with a high of 26°C. The night will see increasing cloudiness, with a low of 15°C.

Historical Weather Data for June 13

The historical high for this date in Thunder Bay is 33.3°C, recorded in 1995, while the record low is 2.0°C, set in 1963.

Wardrobe Suggestions

For today, layered clothing is recommended to adapt to the varying temperatures and conditions. Waterproof clothing and an umbrella will be useful due to the likelihood of showers and the risk of thunderstorms. For tonight and tomorrow, a light jacket or sweater will be beneficial as temperatures drop during the evening.

Weather Trivia

Did you know? Thunder Bay is known for its dramatic temperature swings due to its location on the shores of Lake Superior. The lake’s influence can lead to rapid changes in weather conditions, making it a unique spot for meteorological observations.

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