Fort Wayne, Indiana – Sweater weather is arriving early across Indiana as a powerful Canadian air mass is poised to sweep in behind a cold front by Thursday night, bringing highs in the 60s and lows plunging into the 40s across much of the state.
According to the National Weather Service in Northern Indiana, confidence is high that a cooler-than-normal pattern will settle in from Friday through the weekend, with 80%+ odds favoring below-average temperatures in the Great Lakes region. This surge of autumn-like air follows a frontal boundary expected to pass through on September 3 or 4, dramatically shifting temperatures downward.
Cities across northern and central Indiana — including Fort Wayne, South Bend, and Kokomo — can expect brisk mornings and crisp afternoons beginning late this week. Overnight lows in rural counties could drop into the low 40s, especially Friday and Saturday nights. While not cold enough for frost, residents are advised to check heating systems, close windows overnight, and prepare for outdoor events with layers.
The cooldown is expected to persist into early next week. Additional advisories or updates could follow if colder overnight lows trend closer to record territory.
