| NWS Forecast for: Sullivan County Issued by: National Weather Service Indianapolis, IN Last Update: 254 PM EDT Mon Sep 7 2026 | |
| Tonight: Clear. Lows in the lower 60s. Northeast winds 5 to 10 mph. Tuesday: Mostly sunny. Hot with highs in the lower 90s. South winds around 5 mph. Tuesday Night: Mostly clear. Warmer with lows in the lower 70s. South winds 5 to 10 mph. Gusts up to 20 mph toward daybreak. Wednesday: Mostly sunny through early afternoon, then partly cloudy with a slight chance of showers and thunderstorms late in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Wednesday Night: Showers likely with a chance of thunderstorms through the late overnight, then showers with a slight chance of thunderstorms toward daybreak. Humid with lows in the upper 60s. Southwest winds around 5 mph. Chance of rain near 100 percent. Thursday: Mostly cloudy. Showers with a slight chance of thunderstorms through early afternoon, then a chance of showers and thunderstorms late in the afternoon. Not as warm with highs in the lower 80s. Chance of rain 90 percent. Thursday Night: Partly cloudy with a slight chance of showers through the late overnight, then mostly clear toward daybreak. Lows around 60. Chance of rain 20 percent. Friday: Partly cloudy through early afternoon, then clearing. Highs in the mid 80s. Friday Night: Mostly clear through the late overnight, then partly cloudy with a slight chance of showers toward daybreak. Lows in the lower 60s. Chance of rain 20 percent. Saturday: Partly cloudy through early afternoon, then clearing. A 20 percent chance of showers. Highs in the upper 80s. Saturday Night And Sunday: Mostly clear. A 20 percent chance of showers. Lows in the mid 60s. Highs in the upper 80s. Sunday Night: Mostly clear. Lows in the lower 60s. Monday: Mostly sunny. A slight chance of showers late in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. | |
| Zone Forecast: Sullivan County | |
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