☀️ Current Conditions – Thunder Bay Airport

• Time: 6:00 AM EDT

• Temperature: 8.3°C

• Condition: Partly Cloudy

• Pressure: 102.0 kPa (falling)

• Dew Point: 8.0°C

• Humidity: 98%

• Wind: WNW at 6 km/h

• Visibility: 16 km

Thunder Bay – Weather – A crisp and calm morning starts the day in Thunder Bay, with partly cloudy skies and nearly saturated humidity. Skies will shift throughout the day as the forecast heads toward a more unsettled pattern later this afternoon.

🌤️ Weekend Forecast for Thunder Bay

Make plans to get out and enjoy the weekend! Can you believe it is already the 18th of July? Its like summer is in rush mode.

Check out the Farmer’s Market, Goods & Co., head to Boulevard Lake or the Splash Pad and help pull the kids off the video screen! The weekend weather likely will fill the patios along Red River Road and Cumberland Street as well as across the city.

Friday, July 18

• Morning: Sunny with increasing cloudiness by noon.

• Afternoon: 30% chance of scattered showers late in the day.

• High: 21°C

• UV Index: 7 (High)

Tonight

• Mostly cloudy early with 30% chance of showers this evening.

• Skies will clear overnight.

• Low: 10°C

Saturday, July 19

• Mix of sun and cloud expected.

• Local smoke may return in the afternoon from nearby wildfire activity.

• High: 23°C | Humidex: 27

• UV Index: 7 (High)

Saturday Night: Clear skies, ideal for evening activities.
Low: 12°C

Sunday, July 20

• Sunny and warm, a picture-perfect summer day.

• High: 25°C
  Sunday Night: Clear. Low 11°C

Monday, July 21

• Sunny skies to start the week.

• High: 23°C
  Night: Cloudy periods with 60% chance of showers. Low 14°C

👕 Wardrobe Tips

• Mornings are cool, so light jackets or sweaters are recommended early in the day.

• Afternoon sun will bring warmth—opt for UV-protective clothing, sunglasses, and sunscreen.

• If you’re sensitive to smoke, carry a mask on Saturday just in case.

🧠 Weather Trivia

Thunder Bay’s geographic location along Lake Superior often causes rapid weather shifts. Cool lake breezes in the morning can be replaced by inland heat and moisture later in the day—ideal conditions for afternoon convection and summer showers.