| NWS Forecast for: Sullivan County Issued by: National Weather Service Morristown, TN Last Update: 228 AM EDT Mon Aug 17 2026 |  |
Rest Of Tonight: Mostly clear. Lows around 70. Light winds. Monday: Mostly sunny. A chance of showers and thunderstorms early in the afternoon. Showers with thunderstorms likely late. Humid with highs in the mid to upper 80s. Southwest winds 10 mph or less. Chance of rain 80 percent. Monday Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the upper 60s. Light winds. Chance of rain 50 percent. Tuesday: Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower to mid 80s. Light winds. Chance of rain 20 percent. Tuesday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s. Light winds. Wednesday: Sunny. Highs in the mid to upper 80s. Wednesday Night: Partly cloudy. Lows in the upper 60s. Thursday: Mostly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid to upper 80s. Chance of rain 50 percent. Thursday Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 50 percent. Friday: Partly sunny. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower to mid 80s. Chance of rain 70 percent. Friday Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 60 percent. Saturday: Partly sunny. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 70s to lower 80s. Chance of rain 60 percent. Saturday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 20 percent. Sunday: Mostly sunny. A slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent. | |
| Zone Forecast: Sullivan County | |
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