Current Conditions and Forecast
Thunder Bay is currently experiencing cool and clear conditions, with a temperature of 14°C. The humidity is very high at 99%, making the air feel slightly damp. Winds are light, coming from the west-southwest at 6 km/h, and visibility is excellent at 16 km.
Today’s forecast predicts sunny conditions this morning, with clouds increasing in the afternoon. There is a 30% chance of showers, and a risk of thunderstorms later in the day. Temperatures will rise significantly, reaching a high of 28°C, with a humidex value making it feel more like 36°C. Winds will pick up from the south at 20 km/h later this morning. The UV index is high at 7, so sun protection is recommended.
Barometric Pressure: The pressure is currently 101.0 kPa and rising, indicating generally stable weather but with a potential for afternoon instability.
Tonight’s Forecast
Tonight, expect partly cloudy skies with a 40% chance of showers in the evening and a continued risk of thunderstorms. Fog patches may develop overnight as the temperature drops to a low of 16°C.
Tomorrow’s Outlook
Thursday will start with increasing cloudiness in the morning, leading to a 40% chance of showers in the afternoon, again with a risk of thunderstorms. The day will be warm, with a high of 28°C and a humidex of 36°C. Winds will shift to the southeast at 20 km/h by late morning.
Extended Outlook
- Friday: Sunny with a high of 28°C and a low of 16°C.
- Saturday: Continued sunshine with a high of 24°C and a low of 12°C.
- Sunday: A mix of sun and cloud with a high of 23°C and a low of 11°C.
What to Wear
With the rising temperatures and high humidity, lightweight and breathable clothing is recommended. Sunscreen, sunglasses, and a hat are advisable for protection against the sun. Keep an umbrella or rain jacket handy in case of showers or thunderstorms in the afternoon.
Thunder Bay Weather Trivia
Did you know? Thunder Bay’s record high for July 31st is 34.4°C, set in 1949. While today’s temperatures won’t reach those extremes, the high humidity will make it feel significantly warmer.
