Weather
Northern Indiana Cold Snap: Frost Possible Oct. 17-18
South Bend, IN – Residents across Northern Indiana should prepare for several days of changing weather between Thursday, Oct. 15, and Sunday, Oct. 18, as additional thunderstorms give way to gusty win
By Cameron Hayes · 2026-10-14T12:33:56.414Z
South Bend, IN – Residents across Northern Indiana should prepare for several days of changing weather between Thursday, Oct. 15, and Sunday, Oct. 18, as additional thunderstorms give way to gusty winds, colder temperatures and the possibility of overnight frost.
According to the National Weather Service in Northern Indiana, showers and thunderstorms are expected Thursday afternoon and evening, followed by a noticeable temperature drop Friday and Saturday.
Thursday, Oct. 15: Thunderstorms Return
Thursday brings a 60% to 80% chance of showers and thunderstorms, primarily during the afternoon and evening.
Residents traveling or attending outdoor activities should monitor changing conditions as another round of unsettled weather moves through the region.
Friday, Oct. 16: Windy and Much Colder
Friday will feature windy conditions, lake effect clouds and additional showers, with precipitation chances ranging from 45% to 80%.
Daytime highs are expected to reach only the upper 50s, marking a significant cooldown from earlier in the week.
Saturday, Oct. 17: Sunshine Returns, Frost Risk Develops
Saturday should bring sunshine, although cooler conditions will persist.
The National Weather Service warns that frost could develop late Saturday night as temperatures fall.
Sensitive plants and outdoor vegetation may need protection, particularly in locations experiencing the coldest overnight conditions.
Sunday, Oct. 18: Frosty Start, Then Sunshine
Sunday morning could begin with frost before temperatures gradually recover into the 60s under mostly sunny skies.
The changing forecast may affect weekend travel, outdoor events and gardening activities across Northern Indiana.
Residents should monitor updated forecasts and any frost related advisories issued as the weekend approaches.
Additional weather information is available at weather.gov/iwx.