Thunder Bay Weather Forecast: Chilly Rain to Start May 2024

Street cleaning is ongoing across the city. At 5:00 am in the downtown Waterfront District the crews were hard at work
Street cleaning is ongoing across the city. At 5:00 am in the downtown Waterfront District the crews were hard at work

Persistent Rain and Chilly Winds Define Early May in Thunder Bay

Thunder Bay – WEATHER – Street sweepers were out early this morning in the downtown Waterfront District. There is a lot of work needed every spring to try to make our roads, sidewalks and bike lanes easier to navigate. 

It is actually hard to believe it is already May. Is it just us or does the calendar seem to roll the dates by faster?

Thunder Bay will experience a rainy and brisk morning this May 1, 2024, as light rain continues to affect the region, marking a damp start to the month.

Today’s Weather Overview

Current Conditions

Recorded at Thunder Bay Airport, the temperature is at a chilly 3.2°C with light rain currently falling. The humidity level is high at 95%, with a dew point of 2.5°C, indicating a very moist atmosphere. The barometric pressure is at 100.8 kPa and showing a downward trend. Winds are brisk from the east-northeast at 27 km/h, reducing visibility to 6 km.

Expected Conditions

Today: Thunder Bay will see cloudy skies with periods of rain starting early in the morning, expected to accumulate 10 to 15 mm. Winds will slow down from 20 km/h in the east to lighter speeds late this morning. The temperature will peak at a modest 8°C with a low UV index of 2.

Tonight: The likelihood of rain decreases to 60% early in the evening, followed by clearing skies. Fog is expected to develop later in the evening with temperatures dropping to the freezing mark.

Tomorrow’s Forecast

Thursday, May 2: The day will bring a mix of sun and cloud, turning cloudy by the afternoon. Morning fog patches will clear away. The temperature will slightly improve to a high of 10°C with a higher UV index of 7, indicating more sunshine.

Night: The chance of showers resumes at 60%, with the low resting at a warmer 5°C.

Friday, May 3: Cloudy conditions continue, along with a 60% chance of showers throughout the day. The high will increase to a more comfortable 14°C.

Night: Expect cloudy periods with a 30% chance of showers, and a low around 6°C.

Saturday, May 4: The weather will shift to a mix of sun and cloud with the same high of 14°C experienced on Friday.

Night: The evening will experience cloudy periods with the temperature holding steady at 6°C.

Wardrobe Recommendations

Given the cool and damp conditions, dressing in waterproof outerwear is advisable. Warm layers, such as a thermal and a fleece jacket, will help combat the chilly temperatures, especially in the early morning and evening.

Weather Trivia

Thunder Bay’s geographic location near Lake Superior can amplify weather effects, leading to sudden shifts in temperature and increased rainfall, especially during the spring months.

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