Today’s Forecast for Thunder Bay
Good morning Thunder Bay! As of 7:00 AM EDT, it’s a frosty start with a temperature of -0.4°C at the Thunder Bay Airport.
That wind from the north is brisk, and gloves for walking are a nice need.
The rainfall has local waterways flowing at a very fast and high rate. Keep care with small children near creeks and rivers.
Light snow is also making an appearance with morning, reducing visibility slightly to 16 kilometres.
With a brisk north wind blowing at 28 km/h, and gusting up to 52 km/h, it feels much colder than it looks — the wind chill makes it feel like a shivery -7°C. Atmospheric pressure sits at 100.7 kPa, and humidity is sitting pretty at 81%, giving the air that raw, snowy bite typical of a spring cold snap.
Today, expect the snow or ice pellets to end this morning, leaving behind mainly cloudy skies and a 30% chance of a few lingering flurries. Things improve dramatically this afternoon, as skies are set to clear. Winds will maintain their pace from the north at 30 km/h, gusting up to 50 km/h, before easing later on. We’ll reach a high of 7°C — a refreshing improvement after the frosty dawn!
Tonight and Tomorrow: A Picture-Perfect Spring Day Awaits
Tonight, the skies clear completely. Winds will calm down to about 15 km/h, and the temperature will slip to a low of -4°C, with a wind chill near -7°C overnight — a little nip in the air to remind us winter’s grip isn’t fully gone yet.
Wednesday, April 30th, brings a welcome sight: mainly sunny skies and gentle breezes up to 15 km/h. After a brisk morning windchill of -5°C, temperatures will climb to a cheerful 10°C. With another high UV index of 6, you might finally get to air out those sunglasses and lighter spring jackets! Wednesday night turns cloudier, with a 40% chance of showers and a low of +3°C.
Looking Ahead: Showers, but Warmer!
Thursday, May 1st, is shaping up to be a bit soggier, with cloudy skies and a 60% chance of showers throughout the day. Highs will rise to a mild 12°C, which should make the rain a little more bearable. Thursday night stays damp and cloudy, with another 60% chance of showers and a low near +3°C. Friday offers a bit of a break — mostly cloudy skies with a 30% chance of showers and a high of 9°C, before clearing out Friday night with a crisp low of -5°C.
Historic Highs and Lows for April 29
In Thunder Bay’s weather history, the record high for April 29th is a toasty 25.6°C, set in 1952. Meanwhile, the coldest April 29th saw the thermometer dip to a brisk -9.7°C back in 1985. So today’s chilly start? Pretty typical for this time of year around here!
What to Wear?
Today is a day for strategic layering: think warm jackets, scarves, and a sturdy hat to fight that gusty northern wind. This afternoon, as the sun peeks out, you might peel down to a lighter jacket. Tomorrow’s mostly sunny weather means dressing in lighter layers will be perfect — but keep an umbrella handy for those sneaky evening showers.
Thunder Bay Weather Trivia
Did you know? Thunder Bay is one of Canada’s sunniest cities during springtime, averaging about 300 hours of sunshine each spring! So even though snow is still sneaking around this morning, the odds are in your favour for a bright, sunny afternoon.
