Fort Wayne, Ind. – Scattered showers and isolated thunderstorms will wrap up across Northern Indiana by late Saturday, making way for a warm and humid stretch that begins Sunday and intensifies through Tuesday.
According to the National Weather Service in Northern Indiana, temperatures will climb from the low 70s Saturday to the mid-80s by Monday, with heat indices peaking near or above 90 degrees on Tuesday and Wednesday. Sunday marks the start of the warm-up with partly sunny skies and highs between 79 and 83 degrees.
Cities like South Bend, Fort Wayne, and Warsaw can expect increasingly muggy conditions starting Monday. Afternoon humidity will spike, and scattered showers and thunderstorms are likely to return Tuesday, especially during the afternoon and evening hours.
Residents are urged to limit strenuous outdoor activity during peak heat and humidity hours, stay hydrated, and check on vulnerable individuals. Tuesday’s storm chances could impact evening travel, especially along I-69 and U.S. Route 30 corridors.
More heat and potential storm activity is expected to continue into midweek. Additional advisories may be issued if the heat index remains high or storms become severe.
📅 5-Day Weather Snapshot (Northern Indiana):
- Saturday: Scattered showers, isolated thunder. Highs 71–75°F.
- Sunday: Partly sunny. Highs 79–83°F.
- Monday: Warm, humid. Highs 81–85°F.
- Tuesday: Humid with scattered thunderstorms. Highs 83–86°F.
- Wednesday: Hot and muggy. Highs near 87°F; heat index may exceed 90°F.




