Fort Frances Region Weather Forecast – Warm Days, Clear Skies, and a Frost Advisory Wake-Up Call
Chilly Start with a Frost Warning for Gardeners and Green Thumbs
Fort Frances – Emo – Red Gut First Nation – Rainy River, ON – Thursday, May 22, 2025: It’s a cold start to the day, and not just “where’s my sweater” cold. At 4:00 AM, the temperature in Fort Frances is just 0.4°C, hovering dangerously close to the freezing mark. Environment Canada has issued a Frost Advisory, warning residents of potential near-freezing temperatures early this morning, and again tonight into Friday. With humidity at 95%, any residual moisture could turn to frost, especially in low-lying or sheltered areas. The barometric pressure sits at 102.1 kPa and is rising, which means we’re in for calm and clear conditions — great for sunshine, not so great for your tomato plants.
Winds are currently calm at 2 km/h from the north-northeast, but they’re expected to pick up later this morning, becoming north at 20 km/h, gusting to 40 km/h. Despite the frosty start, things will warm up nicely today, with sunny skies and a high of 18°C. The UV index is 6, so sunscreen is still a must if you’re spending any time outdoors.
Frost Risk Lingers Tonight
Tonight, skies remain clear turning partly cloudy, and the winds will stay from the northeast at 20 km/h, helping draw in cooler air. The overnight low is expected to dip to +1°C, with patchy frost again likely, especially in the countryside and frost-prone locations. Keep your plants protected — one more night of cover should do the trick.
The Weekend Forecast is Pure Spring Gold
Friday offers more sunshine and a high of 19°C. Winds from the northeast ease in the morning, and by the afternoon it should be a comfortable day to be outside. The UV index stays high at 6, and Friday night will be clear with a low of +4°C, giving us some breathing room from the frost threat.
Saturday continues the streak with sunny skies and a high of 20°C, followed by a repeat performance on Sunday, with a high of 23°C and overnight lows climbing steadily to +6°C. It’s safe to say spring is finally locking in — but tonight will be the last little jab from old man winter.
What to Wear?
This morning calls for gloves, a jacket, and possibly a quick conversation with your plants to apologize for the cold. As the day warms up, ditch the layers for lighter clothing and sunglasses. You’ll need sun protection, but you’ll also want a windbreaker for those gusts — 40 km/h can flip your hair and your lunch plans.
Historic Temperatures for May 22
On this date, Fort Frances has seen some real extremes. The record high is a summery 30.0°C, while the record low plummeted to -4.0°C — so today’s chilly morning isn’t unheard of, but the warm-up is right on cue for the season.
Rainy River District Weather Trivia
Did you know that Fort Frances is one of the sunniest spots in Northwestern Ontario? The region clocks over 2,200 hours of sunshine annually, making days like today more common than you’d think. But with all that sun comes the classic Canadian contradiction — you might get sunburned in the afternoon and frostbitten overnight!
