Weather forecast for: Sullivan KY
Last Update: 4:46 pm CDT Sep 5, 2026
This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a steady temperature around 98. Heat index values as high as 105. West wind around 6 mph.
Tonight: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Light north wind.
Sunday: Partly sunny, then gradually becoming sunny, with a high near 90. North northeast wind 5 to 9 mph.
Sunday Night: Mostly clear, with a low around 63. Northeast wind 3 to 7 mph.
Labor Day: Sunny, with a high near 89. East northeast wind 3 to 6 mph.
Monday Night: Mostly clear, with a low around 66. Light and variable wind.
Tuesday: Sunny, with a high near 93. South wind 3 to 7 mph.
Tuesday Night: Mostly clear, with a low around 72. South southeast wind 3 to 6 mph.
Wednesday: Sunny and hot, with a high near 97. Southwest wind 7 to 9 mph.
Wednesday Night: A slight chance of showers after 1am. Mostly clear, with a low around 73. South southwest wind around 5 mph.
Thursday: A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. North wind around 5 mph becoming calm in the evening.
Friday: A slight chance of showers. Mostly sunny, with a high near 88. Calm wind becoming east northeast around 5 mph in the afternoon.
Friday Night: Partly cloudy, with a low around 63. Light southeast wind.
Saturday: A slight chance of showers. Sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the afternoon.