Steady Sunshine and Rising Temps Mark a Glorious Mid-June Forecast
Friday: Calm Start, Sunny Finish
The day kicks off quietly across Fort Frances, Mine Centre, Seine River, and Rat Gut First Nation, where it’s 8.2°C at 5:00 AM CDT. While the observation is officially “not observed,” the readings tell us everything we need to know. With 90% humidity, a dew point of 6.6°C, and a light east-southeast breeze at 9 km/h, the air is fresh and slightly damp — typical of a serene Northwestern Ontario morning. The pressure is rising at 102.3 kPa, indicating a pleasant stretch of weather ahead.
Today will bring sunny skies, with some clouds developing this afternoon, and a high of 21°C — perfect weather for patio coffees, late spring gardening, or lakeside relaxing. The UV index is 8, which is very high, so sunscreen is essential, even with a few clouds in play.
Tonight: Calm, Clear, and Comfortable
Tonight will feature partly cloudy skies early on, then clearing as the evening progresses. Expect a cool and calm overnight low of 8°C — ideal for sleeping with the windows open or enjoying an evening fire under the stars.
Saturday: Sunshine Stays Strong
Saturday keeps the beautiful weather streak going. Expect mainly sunny skies and another high of 21°C, paired with a UV index of 9, which is very high. It’ll be a top-tier day for outdoor plans — from morning market strolls to boat rides on Rainy Lake.
Saturday night brings cloudier skies, but no precipitation is expected. The low remains comfortable at 8°C.
Sunday: A Touch More Cloud, A Bit More Warmth
Sunday turns cloudy, but dry, with a high of 23°C — just warm enough to feel like summer without tipping into heatwave territory. By nightfall, skies will clear again, and the low will settle at a mild 12°C — a sign that summer evenings are here to stay.
What to Wear
Mornings still call for a light sweater or jacket, but daytime conditions are pure T-shirt weather. With UV indexes sitting in the “very high” zone, sunscreen, sunglasses, and hats are a must for anyone spending time outdoors. Evenings may still require a hoodie or light jacket, especially if you’re lakeside.
Historic Weather Trivia
June 13 has been a mixed bag for Fort Frances in the past. The record high is a sizzling 32.0°C, set in 1995, while the record low was a brisk 2.5°C back in 1966. Today’s forecast is far from record-breaking but sits right in the sweet spot — the kind of day that reminds you why June is such a gem in Northwestern Ontario.
