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Portage Lake, LA Weather Forecast
Portage Lake, LA Weather Forecast Date: 306 PM CDT Fri Aug 07 2026
The area/counties/county of: Upper Iberia, including the cities of: New Iberia and Jeanerette.or toggle through each period.
Tonight... Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Lows in the mid 70s. Southeast winds around 5 mph, becoming east after midnight. Chance of rain 20%.
Saturday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. East winds around 5 mph. Chance of rain 40%. Heat index values up to 106.
Saturday Night... Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable.
Sunday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Temperature falling into the upper 80s in the afternoon. East winds around 5 mph, becoming southeast around 5 mph in the afternoon. Chance of rain 50%. Heat index values up to 105.
Sunday Night... Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the mid 70s. Southeast winds around 5 mph.
Monday... Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. Highs in the lower 90s. Chance of rain 70%. Heat index values up to 105.
Monday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 70s.
Tuesday... Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50%. Heat index values up to 110.
Tuesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 70s.
Wednesday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30%. Heat index values up to 110.
Wednesday Night... Partly cloudy. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110.
Thursday... Partly cloudy. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110.
POP = Probability of Precipitation
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