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Trinity, LA Weather Forecast
Trinity, LA Weather Forecast Date: 616 AM CDT Tue Sep 22 2026
The area/counties/county of: Catahoula, including the cities of: Jonesville and Harrisonburg.or toggle through each period.
Today... Sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the upper 90s. West winds around 5 mph, becoming northeast this afternoon. Chance of rain 20%. Heat index values up to 105.
Tonight... Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. Northeast winds 5 to 10 mph.
Wednesday... Sunny. Highs in the mid 90s. Northeast winds 10 to 15 mph.
Wednesday Night... Mostly clear. Lows in the upper 60s. Northeast winds 5 to 10 mph.
Thursday... Mostly sunny. Highs in the lower 90s. Northeast winds 5 to 10 mph.
Thursday Night... Partly cloudy. Lows in the mid 60s. Highs in the mid 90s.
Friday... Partly cloudy. Lows in the mid 60s. Highs in the mid 90s.
Friday Night... Mostly cloudy. Lows in the upper 60s.
Saturday... Mostly sunny. Highs in the mid 90s.
Saturday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s.
Sunday... Partly cloudy. Highs in the mid 90s. Lows in the upper 60s.
POP = Probability of Precipitation
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