Expires:202607240700;;490918 FPUS54 KJAN 232333 ZFPJAN Zone Forecast Product for Central Mississippi, Northeast Louisiana, and Southeast Arkansas National Weather Service Jackson MS 631 PM CDT Thu Jul 23 2026 MSZ073-240700- Lamar- Including the cities of West Hattiesburg, Lumberton, and Purvis 631 PM CDT Thu Jul 23 2026 .TONIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms this evening, then mostly clear after midnight. Lows in the mid 70s. South winds 5 to 10 mph. Chance of rain 40 percent. .FRIDAY...Mostly sunny. Highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Southwest winds around 5 mph. .SATURDAY...Sunny. Highs in the upper 90s. West winds around 5 mph. Heat index values up to 106. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. West winds around 5 mph. Heat index values up to 105 early in the evening. .SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Hot. Highs around 100. Lows in the upper 70s. Heat index values up to 110. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Hot. Lows in the upper 70s. Highs around 100. Heat index values up to 115. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs around 100. Chance of rain 30 percent. Heat index values up to 110. $$