| NWS Forecast for: St. Joseph County Issued by: National Weather Service Northern Indiana Last Update: 959 PM EDT Wed Sep 2 2026 |  |
| Rest Of Tonight: Mostly clear. A slight chance of showers and thunderstorms. Lows in the lower 70s. Southwest winds 5 to 10 mph. Gusts up to 20 mph late this evening. Chance of rain 20 percent. Thursday: Partly cloudy with a slight chance of showers and thunderstorms. Hot with highs around 90. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 20 percent. Heat index values in the mid 90s. Thursday Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Humid with lows around 70. Southwest winds around 5 mph. Chance of rain 60 percent. Friday: Mostly cloudy with showers likely with a chance of thunderstorms in the morning, then partly cloudy with a chance of showers in the afternoon. Humid with highs in the mid 80s. West winds around 5 mph. Chance of rain 60 percent. Friday Night: Mostly clear in the evening, then partly cloudy with showers likely with a slight chance of thunderstorms after midnight. Humid with lows in the upper 60s. North winds around 5 mph, becoming east after midnight. Chance of rain 60 percent. Saturday: Mostly cloudy in the morning, then becoming partly cloudy. A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 80s. Chance of rain 60 percent. Saturday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of rain 20 percent. Sunday: Mostly sunny. Highs in the lower 80s. Sunday Night: Mostly clear. Lows around 60. Labor Day: Mostly sunny. Highs in the lower 80s. Monday Night: Mostly clear. Lows in the lower 60s. Tuesday: Partly cloudy. Highs in the lower 80s. Tuesday Night: Partly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 20 percent. Wednesday: Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. | |
| Zone Forecast: St. Joseph County | |
Visit your local NWS office at: https://www.weather.gov/iwx |