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Karnack, TX Weather Forecast
Karnack, TX Weather Forecast Date: 130 AM CDT Thu Sep 03 2026
The area/counties/county of: Harrison, including the city of Marshall.or toggle through each period.
Rest of Tonight... Partly cloudy with a 20% chance of showers. Near steady temperature in the mid 70s. South winds around 5 mph.
Thursday... Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. South winds around 5 mph. Chance of rain 20%.
Thursday Night... Mostly clear. Lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable.
Friday... Mostly sunny. Hot with highs in the mid 90s. Light and variable winds, becoming southeast around 5 mph in the afternoon.
Friday Night... Mostly clear. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable.
Saturday... Partly cloudy in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 50%.
Saturday Night... Partly cloudy. Lows in the lower 70s.
Sunday... Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Hot with highs in the upper 90s. Chance of rain 20%.
Sunday Night... Mostly clear. Lows in the lower 70s.
Labor Day... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Chance of rain 20%. Heat index values up to 105 in the afternoon.
Monday Night... Mostly clear. Lows in the lower 70s.
Tuesday... Mostly sunny. Hot with highs in the mid 90s.
Tuesday Night... Mostly clear. Lows in the lower 70s.
POP = Probability of Precipitation
Karnack Radar Loop
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