| NWS Forecast for: Karnack TX Issued by: National Weather Service Shreveport, LA Last Update: 6:31 am CDT Sep 4, 2026 | |
| Today: Sunny and hot, with a high near 97. Heat index values as high as 105. Calm wind becoming southeast around 5 mph. Tonight: Mostly clear, with a low around 73. Calm wind. Saturday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming east around 5 mph. Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Calm wind. Sunday: Sunny and hot, with a high near 99. Calm wind becoming east around 5 mph. Sunday Night: Mostly clear, with a low around 74. Labor Day: Sunny and hot, with a high near 100. Monday Night: Mostly clear, with a low around 74. Tuesday: Sunny and hot, with a high near 99. Tuesday Night: Mostly clear, with a low around 74. Wednesday: Sunny and hot, with a high near 97. Wednesday Night: A 20 percent chance of showers. Mostly clear, with a low around 73. Thursday: Sunny and hot, with a high near 97. | |
| Karnack TX 32.63°N 94.14°W (Elev. 223 ft) | |
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