Louisiana weather by county

Louisiana in September 2026

• 64 of 64 counties ran at least 1° warmer than usual in September 2026, and 0 ran at least 1° cooler.
• Warmest against its own records: Beauregard Parish (1st-warmest September of 132). Even the least warm, Iberia Parish, had its 11th-warmest.
• Wettest September against its records: Calcasieu Parish, 3.6 inches (69th-wettest).
• 46 of 64 counties were in moderate drought or worse on NOAA's Palmer reading for September.
• Since 1970 the state's counties have warmed about 0.5° per decade on average, Bienville Parish the most at 0.7°.

This week's forecast against the usual, and every month since 1895, for all 64 counties in Louisiana. 63 had a top-10 warm September in 2026.

• Acadia Parish 5th warmest Sep
• Allen Parish 2nd warmest Sep
• Ascension Parish 2nd warmest Sep
• Assumption Parish 2nd warmest Sep
• Avoyelles Parish 2nd warmest Sep
• Beauregard Parish 1st warmest Sep
• Bienville Parish 1st warmest Sep
• Bossier Parish 1st warmest Sep
• Caddo Parish 1st warmest Sep
• Calcasieu Parish 2nd warmest Sep
• Caldwell Parish 1st warmest Sep
• Cameron Parish 2nd warmest Sep
• Catahoula Parish 3rd warmest Sep
• Claiborne Parish 1st warmest Sep
• Concordia Parish 3rd warmest Sep
• De Soto Parish 1st warmest Sep
• East Baton Rouge Parish 4th warmest Sep
• East Carroll Parish 3rd warmest Sep
• East Feliciana Parish 3rd warmest Sep
• Evangeline Parish 2nd warmest Sep
• Franklin Parish 2nd warmest Sep
• Grant Parish 2nd warmest Sep
• Iberia Parish 11th warmest Sep
• Iberville Parish 7th warmest Sep
• Jackson Parish 1st warmest Sep
• Jefferson Davis Parish 3rd warmest Sep
• Jefferson Parish 10th warmest Sep
• Lafayette Parish 9th warmest Sep
• Lafourche Parish 7th warmest Sep
• LaSalle Parish 2nd warmest Sep
• Lincoln Parish 1st warmest Sep
• Livingston Parish 3rd warmest Sep
• Madison Parish 2nd warmest Sep
• Morehouse Parish 2nd warmest Sep
• Natchitoches Parish 1st warmest Sep
• Orleans Parish 9th warmest Sep
• Ouachita Parish 2nd warmest Sep
• Plaquemines Parish 7th warmest Sep
• Pointe Coupee Parish 3rd warmest Sep
• Rapides Parish 2nd warmest Sep
• Red River Parish 1st warmest Sep
• Richland Parish 3rd warmest Sep
• Sabine Parish 1st warmest Sep
• St. Bernard Parish 7th warmest Sep
• St. Charles Parish 10th warmest Sep
• St. Helena Parish 3rd warmest Sep
• St. James Parish 2nd warmest Sep
• St. John the Baptist Parish 7th warmest Sep
• St. Landry Parish 5th warmest Sep
• St. Martin Parish 9th warmest Sep
• St. Mary Parish 9th warmest Sep
• St. Tammany Parish 4th warmest Sep
• Tangipahoa Parish 2nd warmest Sep
• Tensas Parish 2nd warmest Sep
• Terrebonne Parish 5th warmest Sep
• Union Parish 1st warmest Sep
• Vermilion Parish 5th warmest Sep
• Vernon Parish 1st warmest Sep
• Washington Parish 3rd warmest Sep
• Webster Parish 1st warmest Sep
• West Baton Rouge Parish 7th warmest Sep
• West Carroll Parish 2nd warmest Sep
• West Feliciana Parish 4th warmest Sep
• Winn Parish 1st warmest Sep

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