South Bend, Indiana – Residents across northern Indiana should use the quieter weather Saturday to prepare for multiple rounds of thunderstorms expected to arrive beginning Sunday night. While much of Sunday will remain hot and humid, the first window for severe weather develops after sunset, with another round possible Monday afternoon and evening.
According to the National Weather Service in Northern Indiana, strong to severe thunderstorms are possible from 8 p.m. EDT Sunday until 4 a.m. Monday, followed by another threat Monday afternoon through Monday night. Confidence in the exact timing and coverage remains low, but forecasters say damaging winds will be the primary hazard, with large hail possible Sunday night and a brief tornado or two not ruled out Monday.
The Storm Prediction Center places much of northern Indiana, including South Bend, Elkhart, Goshen, Warsaw, Plymouth, Fort Wayne, and surrounding communities, under a Marginal Risk (Level 1 of 5) for severe weather Sunday. On Monday, portions of northern and northeastern Indiana are upgraded to a Slight Risk (Level 2 of 5), indicating a greater chance for organized severe storms.
High temperatures will climb into the upper 80s to lower 90s Sunday and Monday, with increasing humidity creating uncomfortable conditions ahead of the storms. Drivers along the Indiana Toll Road (I-80/90), U.S. 31, I-69, and U.S. 30 should be prepared for sudden downpours, strong wind gusts, and dangerous cloud-to-ground lightning during periods of active weather.
Residents are encouraged to review their severe weather safety plans today, ensure Wireless Emergency Alerts are enabled on mobile devices, and have multiple ways to receive warnings overnight when storms are most likely to arrive. Secure loose outdoor items before Sunday evening and move indoors immediately if warnings are issued.
Five-Day Forecast for South Bend, Indiana
- Saturday: High 79–83°, low 64–69°. Mainly dry with a mix of sun and clouds.
- Sunday: High 86–90°, low 67–73°. Hot and humid with thunderstorms developing Sunday night.
- Monday: High 88–92°, low 66–71°. Thunderstorms likely, some could become severe
