Western New York Weather Alert: September Brings Cool Air and Midweek Storm Risk Through Thursday

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Buffalo, New York – After a crisp, fall-like morning across western New York, Buffalo will enjoy a picture-perfect Labor Day with plenty of sunshine and dry skies. But residents shouldn’t get too comfortable—wet weather is creeping in by midweek and could affect post-holiday travel on I-190 and other major roadways.

According to the National Weather Service, Labor Day will be calm and sunny, with highs near 77°F and light winds picking up in the afternoon. Skies remain partly cloudy Monday night, but rain chances climb by Tuesday night with scattered showers moving in from the west.

Tuesday stays mostly dry and mild, with a high near 76°F, but light rain is expected to develop after dark. By Wednesday, a broader system pushes through, bringing a 30–50% chance of showers during the day and more widespread rainfall by Wednesday night. This system, paired with cooler Canadian air, will drive temperatures back into the low 70s for the rest of the week.

Commuters should be cautious Wednesday and Thursday, especially on bridges and highways like I-190, where early showers may reduce visibility and traction.

Conditions remain unsettled through Thursday, with rain chances up to 80%. Friday and Saturday offer limited improvement, with clouds lingering and temperatures staying well below early September norms.

Five-Day Forecast for Buffalo, NY:

  • Monday (Labor Day): Sunny, high of 77°F, calm winds
  • Tuesday: Mostly sunny, high of 76°F, rain after dark (30% chance)
  • Wednesday: Showers (30-50%), high of 72°F
  • Thursday: Rain likely (80%), high near 72°F
  • Friday: Cloudy with scattered showers (30-40%), high near 68°F