Cool temperatures persist in Indiana, with record lows possible | Aug. 25, 2025

Marcus’ 5 a.m. Monday forecast

INDIANAPOLIS (WISH) — Well-below-normal temperatures will continue for much of this week.

Today:

Clear skies are expected early this morning, transitioning to partly to mostly cloudy skies this afternoon as a very weak upper-level wave moves through the region.

A few showers may be possible in the far northern portions of the state, but areas like central Indiana will remain dry.

Temperatures will be seasonably cool for this time of year, running about 10°F below average with highs in the low to mid-70s this afternoon.

Tonight:

Mainly clear skies will allow for rapid radiational cooling overnight. Lows are likely to dip into the 40s in outlying areas and the lower 50s around the metro area.

Near record lows:

In fact, the next couple of nights could approach record-low temperatures. The coolest morning is expected on Wednesday with a low of 50°F. The record low for that date is 49°F, set in 1927.

Beautiful weather over the extended forecast:

Temperatures this week will hold steady in the mid-70s with mostly sunny to partly cloudy skies through the end of the week.

Slightly warmer conditions are expected heading into the holiday weekend, with highs in the mid to upper 70s. Humidity will remain low. There is a slight chance of a shower or thunderstorm on Sunday and Monday, but there is some uncertainty regarding the likelihood of rain. Overall, rain prospects appear limited over the next 7 to 10 days.

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