Thunder Bay – WEATHER – Thunder Bay is starting Tuesday on a chilly, moisture-laden note, with low cloud, near-saturated air, and a lingering risk of drizzle.
Environment Canada shows no alerts in effect for the city this morning, but the forecast still calls for a raw day with drizzle early, rain showers later this morning, and a risk of freezing drizzle early today.
Today’s Weather Overview
At 6:00 AM EDT, Thunder Bay Airport was reporting partly cloudy skies, a temperature of 0.0°C, pressure at 101.2 kPa and falling, humidity at 99 percent, northwest wind at 5 km/h, a wind chill of -2, and visibility of 13 km.
That combination points to a damp, borderline setup where even light precipitation can make the morning feel colder and slicker than the thermometer alone suggests.
Environment Canada’s forecast for today calls for cloudy skies, a 40 percent chance of drizzle this morning, and a few rain showers beginning late this morning. There is also a risk of freezing drizzle early this morning, while fog patches are expected to dissipate this morning. Winds will turn east at 20 km/h late this afternoon, and the high should reach 5°C. The UV index is 2, or low.
Tonight and the Next Three Days
Tonight stays unsettled. The forecast calls for cloudy skies with a 40 percent chance of showers changing to a 40 percent chance of drizzle this evening. Fog patches will develop this evening, winds ease after sunset, and the overnight low will hold near 1°C.
Wednesday keeps the grey look a little longer, with cloudy skies and a 40 percent chance of drizzle early in the morning, but Environment Canada says skies should begin clearing late in the afternoon.
The high reaches 6°C, followed by increasing cloudiness Wednesday night and a low of -1°C. Thursday looks milder again, with cloudy skies and a high of 9°C.
Travel and Local Outlook
This is not a major storm day, but the mix of near-freezing temperatures early, possible freezing drizzle, and fog patches means the morning commute could still bring a few slick spots and lower visibility in places.
Conditions should improve as the day goes on and temperatures rise above freezing.
Wardrobe Recommendations
A water-resistant jacket and shoes with good grip make sense today. It will not be brutally cold, but the damp air and lingering drizzle will make it feel raw. A slightly warmer layer is still worth having for the morning and again Wednesday night, when temperatures dip back below freezing.
Weather Trivia
Thunder Bay often gets these drawn-out April transitions where drizzle, fog, and low cloud linger even as daytime highs edge upward. Lake Superior helps hold cool moisture over the city, which is one reason spring here can feel slower and greyer than places farther inland. This is an inference based on the regional forecast setup rather than a direct statement from Environment Canada.
Overview
Thunder Bay weather overview for April 14, 2026: cloudy skies, morning drizzle, a risk of freezing drizzle early, then rain showers and a high of 5°C before a damp night and gradual midweek improvement.
