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Gretna Junior High School, LA Weather Forecast
Gretna Junior High School, LA Weather Forecast Date: 121 PM CDT Sat Aug 08 2026
The area/counties/county of: Upper Jefferson, including the cities of: Metairie, Kenner, Harahan, Westwego, Marrero, and Gretna.or toggle through each period.
This Afternoon... Mostly sunny with a slight chance of showers and thunderstorms. Near steady temperature around 90. East winds 5 to 10 mph. Chance of rain 20%. Heat index values up to 105.
Tonight... Mostly clear. Humid with lows in the upper 70s. South winds around 5 mph in the evening, becoming light and variable.
Sunday... Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Northeast winds around 5 mph, becoming southeast around 5 mph in the afternoon. Chance of rain 50%.
Sunday Night... Mostly clear. Humid with lows in the upper 70s. South winds around 5 mph.
Monday... Mostly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the lower 90s. South winds around 5 mph. Chance of rain 70%. Heat index values up to 105.
Monday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 70s.
Tuesday... Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40%. Heat index values up to 105.
Tuesday Night... Partly cloudy in the evening, then clearing. Lows in the upper 70s.
Wednesday... Sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40%. Heat index values up to 110.
Wednesday Night... Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
Thursday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%. Heat index values up to 110.
Thursday Night... Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
POP = Probability of Precipitation
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