Weather WorldTrinity, LA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Trinity, LA Weather Forecast
Trinity, LA Weather Forecast Date: 126 PM CDT Mon Sep 21 2026
The area/counties/county of: Catahoula, including the cities of: Jonesville and Harrisonburg.or toggle through each period.
This Afternoon... Mostly sunny with a chance of thunderstorms with a slight chance of showers. Near steady temperature in the mid 90s. Northwest winds around 5 mph. Chance of rain 30%. Heat index values up to 107.
Tonight... Partly cloudy with a chance of thunderstorms with a slight chance of showers in the evening, then mostly clear after midnight. Patchy fog after midnight. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 30%.
Tuesday... Sunny. Highs in the upper 90s. North winds 5 to 10 mph. Heat index values up to 106.
Tuesday Night... 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.
Thursday... Partly cloudy. Highs in the mid 90s. Lows in the upper 60s.
Friday... Partly cloudy. Highs in the mid 90s. Lows in the upper 60s.
Saturday... Partly cloudy. Highs in the mid 90s. Lows in the upper 60s.
POP = Probability of Precipitation
Trinity Radar Loop
Use the map search tool if you want to place a location marker on the radar map...