Unsettled Weather Pattern Brings Showers and High Humidity to Thunder Bay

THUNDER BAY – Thunder Bay residents should prepare for a damp and cool Sunday, with showers expected throughout the day and a risk of thunderstorms by late morning into the afternoon. With humidity nearing saturation and falling barometric pressure, the atmosphere is primed for continued precipitation. This trend will persist into Monday before clearing later in the week.

Today’s Weather Overview

Current Conditions

As of 7:16 AM EDT at Thunder Bay Airport:

• Temperature: 10.4°C

• Condition: Mostly Cloudy

• Humidity: 97%

• Dew Point: 9.9°C

• Wind: East at 12 km/h

• Visibility: 13 km

• Pressure: 100.2 kPa and falling

These saturated conditions are indicative of ongoing showers and a possible brief but intense thunderstorm later today.

Sunday Forecast

• Morning: Cloudy with a 30% chance of early showers transitioning to consistent rain.

• Afternoon: Showers continuing with a risk of thunderstorms.

• Rainfall: Local amounts between 10 and 15 mm possible.

• High: 16°C

• UV Index: 3 (moderate)

Tomorrow’s Forecast

Monday, June 9

• Morning: Cloudy with 60% chance of showers.

• Afternoon: Showers becoming likely with another risk of thunderstorms.

• High: 13°C

• Night: Cloudy periods with a 30% chance of showers.

• Low: 10°C

Tuesday, June 10

• Day: A mix of sun and cloud with a 30% chance of showers.

• High: 21°C

• Night: Cloudy periods with 40% chance of showers.

• Low: 11°C

Wardrobe Recommendations

• Today: Keep your rain jacket and waterproof shoes ready, especially if heading out in the afternoon when thunderstorms are possible.

• Monday: Cooler temperatures and continued wet weather suggest layering and water-resistant outerwear.

• Tuesday: A light jacket is recommended with on-and-off sunshine and potential for showers.

Weather Trivia

Did You Know?
Thunder Bay’s average rainfall in June is approximately 90 mm, but in 2012, the city recorded over 140 mm due to several days of thunderstorms and flooding. This year is already trending above average for early June rainfall.