Indianapolis

Indianapolis on Frost Alert: NWS Issues Advisory and Warning for Looming Cold Snap

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Published on October 23, 2025
Indianapolis on Frost Alert: NWS Issues Advisory and Warning for Looming Cold SnapSource: Unsplash/ Ksenia

The forecast for Indianapolis seems to be tailor-made for those who enjoy the crisp onset of fall—with a side of frost advisories and freeze warnings. The National Weather Service in Indianapolis isn't sugarcoating things: as temperatures slide into the cooler side of the thermostat, residents are on alert for frost and potential freezes that could greet them in the early hours.

As of early this morning, the National Weather Service (NWS) issued a Frost Advisory in effect until 9 a.m. EDT, followed by a Freeze Warning from 2 a.m. to 9 a.m. EDT Friday. The advisory warns of temperatures dropping as low as 34 degrees, which may lead to frost formation. The Freeze Warning indicates sub-freezing temperatures as low as 29 degrees are expected. These conditions could damage crops, sensitive vegetation, and unprotected outdoor plumbing. Residents are advised to take precautions to protect plants and pipes from the cold.

Several counties, including Boone, Clinton, Hamilton, Hancock, Marion, Rush, Henry, and Tippecanoe, are under these advisories and warnings. Residents should expect widespread frost, especially in sheltered areas, and take steps to protect gardens and outdoor plants.

Friday night will bring more frost, with clear skies turning cloudy over the weekend and a chance of rain on Sunday. The National Weather Service warns that frost could damage sensitive outdoor plants, so residents should cover or bring them indoors.