| NWS Forecast for: Sullivan County Issued by: National Weather Service Indianapolis, IN Last Update: 418 PM EST Fri Dec 26 2025 | |
Tonight: Mostly cloudy. Patchy fog toward daybreak. Much cooler with lows in the lower 40s. Northwest winds 5 to 10 mph with gusts up to 20 mph through midnight, becoming light and variable. Saturday: Areas of fog in the morning. Mostly cloudy. Cooler with highs in the upper 50s. East winds 5 to 10 mph. Saturday Night: Cloudy. A chance of rain with a slight chance of thunderstorms toward daybreak. Not as cool with lows in the mid 50s. Temperature steady or slowly rising after midnight. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 30 percent. Sunday: Cloudy. A chance of rain in the morning, then rain with a slight chance of thunderstorms in the afternoon. Warmer with highs around 70. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. Sunday Night: Rain through midnight, then a chance of rain and snow toward daybreak. Little or no snow accumulation. Much colder. Less humid with lows in the lower 20s. Southwest winds around 15 mph, becoming west toward daybreak. Gusts up to 35 mph. Chance of precipitation 90 percent. Monday And Monday Night: Partly cloudy. Cold. Highs in the upper 20s. Lows 15 to 20. Tuesday: Mostly sunny in the morning, then becoming partly cloudy. Cold with highs in the lower 30s. Tuesday Night And Wednesday: Partly cloudy. Lows in the lower 20s. Highs in the upper 30s. Wednesday Night And New Years Day: Partly cloudy. Cold. Lows around 20. Highs in the mid 20s. Thursday Night And Friday: Mostly clear. Cold. Lows around 10 above. Highs in the mid 20s. | |
| Zone Forecast: Sullivan County | |
Visit your local NWS office at: https://www.weather.gov/ind |