Thunder Bay Weather: Gusts Reach 60 km/h Before Flurries Tonight
Thunder Bay weather started Monday with mostly cloudy skies, 12.8°C at 6:00 AM EDT, and southwest winds already gusting as colder air edged closer. The day is set for showers, a high of 13°C, and west winds reaching 30 km/h with gusts to 60 this morning.
At Thunder Bay Airport, the morning reading also showed 38% humidity, pressure at 98.6 kPa and falling, and visibility at 24 km. The UV index is 2.
Thunder Bay Airport Morning Reading
The airport observation gives the clearest snapshot of the change underway: SSW wind at 23 km/h, gusting to 36, with the temperature still in double digits before the afternoon cool-down. For anyone planning time outdoors, the stronger gusts are the main immediate constraint, especially before the wind shifts west and then northwest later.
Monday’s setup is the first step in a quick swing. Thunder Bay can move from mild daytime conditions to flurries in the same day during spring, and this forecast follows that pattern as a wind shift brings colder air behind the low-pressure system.
Tonight In Thunder Bay
Tonight, rain showers change to a few flurries late this evening as the northwest wind holds at 30 km/h with gusts to 60. The temperature falls to 0°C, leaving little room for the daytime high to carry into the night.
That drop leaves a narrow window for anyone trying to finish outdoor work, travel, or errands before conditions turn colder. The combination of wind and the rain-to-flurries transition is the part most likely to change plans after sunset.
Tuesday Weather Outlook
Tuesday stays unsettled after the overnight change, with mainly cloudy skies and a 40% chance of flurries in the morning. The northwest wind eases to 20 km/h, but the high only reaches 7°C.
Tuesday night brings cloudy periods, a 30% chance of flurries or rain showers, and a low of -2°C. For Thunder Bay residents, the practical takeaway is to expect a sharp shift from a mild Monday morning to near-freezing conditions by tonight and a colder start to Tuesday.
