Buffalo, N.Y. – A surge of cool Canadian air is setting the stage for a crisp start to September in western New York. Temperatures are plunging into the 40s at night, hinting at an early taste of fall just as Labor Day weekend begins.
According to the National Weather Service, Buffalo will stay mostly sunny through the holiday with highs near 76°F, but drivers on I-90 and I-190 should expect fog patches late at night and early mornings due to the sharp temperature drop. Residents should prepare for fluctuating conditions, including midweek showers that could dampen outdoor events.
The holiday weekend looks favorable for picnics, boating, and travel, with Sunday and Monday both sunny and dry. By late Tuesday, however, a shift brings scattered showers and a 60% chance of rain overnight Wednesday. Those planning outdoor gatherings should keep umbrellas close and avoid travel on slick roads after midnight.
The bigger story extends beyond New York. A deep trough of cool air is spreading across the Great Lakes, leaving much of the Midwest and Northeast running 5–10 degrees below normal next week. That pattern signals a preview of autumn, with Buffalo among the first cities to feel the seasonal change.
Warnings aren’t in place, but residents should monitor updates as cooler, unsettled air lingers into late week.
Five Day Forecast for Buffalo, NY
- Sunday: Sunny, high 73°F, low 53°F.
- Labor Day (Monday): Sunny, high 76°F, low 57°F.
- Tuesday: Mostly sunny, high 76°F, low 58°F.
- Wednesday: Mostly sunny early, showers likely late. High 76°F, low 59°F.
- Thursday: Chance of showers, high 68°F, low 50°F.





