Upper Terrebonne- Including the cities of Houma and Bayou Cane 1232 PM CDT Sun Jul 20 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT MONDAY... .THIS AFTERNOON...Mostly sunny with a slight chance of showers and thunderstorms. Near steady temperature around 90. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107. .TONIGHT...Mostly clear. Humid with lows in the upper 70s. South winds around 5 mph in the evening, becoming light and variable. .MONDAY...Sunny in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107. .MONDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. Southwest winds around 5 mph in the evening, becoming light and variable. .TUESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Light and variable winds, becoming west around 5 mph in the afternoon. Chance of rain 20 percent. Heat index values up to 107. .TUESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny with a chance of showers and thunderstorms in the morning, then partly sunny with showers and thunderstorms likely in the afternoon. Highs in the lower 90s. Chance of rain 60 percent. Heat index values up to 105. .WEDNESDAY NIGHT...A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 70s. Chance of rain 60 percent. .THURSDAY...Showers, thunderstorms. Highs in the upper 80s. Chance of rain 90 percent. .THURSDAY NIGHT...A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 70s. Chance of rain 60 percent. .FRIDAY...Showers. A chance of thunderstorms in the morning, then thunderstorms in the afternoon. Highs in the upper 80s. Temperature falling into the lower 80s in the afternoon. Chance of rain 90 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 40 percent. .SATURDAY...Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 90 percent.