Humidity High and Umbrellas Essential as Showers Continue
THUNDER BAY – WEATHER REPORT – A fresh and misty Thursday morning greets Thunder Bay with temperatures sitting at 12.1°C and air thick with moisture. With 100% humidity, you might think the sky itself is doing deep breathing exercises. Winds are light from the north at 2 km/h, and barometric pressure is at 101.2 kPa and rising, hinting at a modest shift in the weather pattern—though not necessarily to sunshine just yet.
Tonight at Port Arthur Stadium, the Border Cats are now set to host the Waterloo Bucks for a pair of games, beginning on Thursday. It’s ‘Thirsty Thursday’ with Sleeping Giant Brewing Company’s RBI Lager tall cans on sale for $7.
It’s also the annual Bark in the Park night on Thursday, with the first 100 dogs receiving a baggie of treats courtesy of Pet Valu.
Today’s Forecast: Overcast and Wet Conditions Continue
Thursday’s skies remain stubbornly cloudy, with a 60 percent chance of showers in the forecast. If you’re heading out, bring rain gear and maybe a splash of patience. The high temperature will peak at just 16°C, with the UV index sitting at a moderate 5—so while you may not need sunscreen, a raincoat is still a smart wardrobe move.
Tonight, expect continued cloud cover and a 60% chance of rain into the evening, with an overnight low of 11°C. A perfect night to curl up indoors with a good book—or a soggy umbrella drying in the corner.
Looking Ahead: Slight Warm-Up but More Rain
Friday sees a mostly cloudy sky again, but slightly warmer temperatures reaching 19°C. Don’t be fooled by the occasional sun peeking through—the UV index jumps to 8 (very high), so if that sunshine breaks through, it’s intense. Another bout of showers is likely Friday night (70% chance), with the mercury dipping back to 11°C.
Saturday offers a mix of sun and cloud but with a 60% chance of showers—so we’re not quite out of the damp woods yet. Temperatures climb to 22°C, giving us a brief summery tease before more clouds and potential showers continue Saturday night into Sunday, with highs around 21°C and lows near 17°C.
What to Wear?
Layers and waterproofs are your best friends right now. Think light rain jacket, water-resistant footwear, and if you’re venturing out on Friday afternoon, don’t forget the sunscreen, even if it feels counterintuitive under grey skies.
Thunder Bay Weather Trivia 🌦️
Did you know? Thunder Bay holds the record for Ontario’s largest one-day snowfall—an incredible 48.3 cm fell on December 15, 1996. While today’s showers may dampen your plans, at least we don’t need a snow shovel… yet.
