| NWS Forecast for: Karnes County Issued by: National Weather Service Austin/San Antonio, TX Last Update: 419 PM CDT Tue Sep 8 2026 |  |
| Tonight: Mostly clear. Lows in the mid 70s. Southeast winds 10 to 15 mph, diminishing to around 5 mph after midnight. Wednesday: Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Southeast winds 5 to 10 mph. Chance of rain 30 percent. Highest heat index readings up to 107. Wednesday Night: Partly cloudy. Lows in the mid 70s. Southeast winds 5 to 10 mph. Thursday: Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Southeast winds 5 to 10 mph. Highest heat index readings up to 107. Thursday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. Friday Through Saturday Night: Mostly clear. Hot. Highs around 100. Lows in the mid 70s. Highest heat index readings up to 110. Sunday Through Monday Night: Partly cloudy. Highs in the upper 90s. Lows in the mid 70s. Highest heat index readings up to 110. Tuesday: Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Highest heat index readings up to 110. | |
| Zone Forecast: Karnes County | |
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