Weather forecast for: Karnes City TX
Last Update: 6:42 am CDT Sep 21, 2026
Today: Sunny and hot, with a high near 99. Heat index values as high as 103. Calm wind becoming east around 5 mph in the afternoon.
Tonight: Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming light and variable after midnight.
Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 103. Light northeast wind becoming east 5 to 10 mph in the afternoon.
Tuesday Night: Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming light and variable in the evening.
Wednesday: Mostly sunny and hot, with a high near 100. North northeast wind 5 to 10 mph becoming east in the afternoon.
Wednesday Night: Partly cloudy, with a low around 74. East southeast wind 5 to 10 mph becoming light and variable in the evening.
Thursday: Mostly sunny and hot, with a high near 99. East wind 5 to 10 mph.
Thursday Night: Partly cloudy, with a low around 73. East southeast wind 5 to 10 mph becoming light and variable in the evening.
Friday: Mostly sunny, with a high near 98. Northeast wind 5 to 10 mph.
Friday Night: Partly cloudy, with a low around 72.
Saturday: Mostly sunny, with a high near 98.
Saturday Night: Partly cloudy, with a low around 72.
Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 99.