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Chalmette, LA Weather Forecast


Chalmette, LA Weather Forecast Dated: 522 PM Fri Sep 18 2026
Expect a hot stretch with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Friday, September 18, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
90°F 32°C
Sunny
Early-Evening
84°F 29°C
Sunny
Sizzling hot near 90°F 32°C with a heat index reaching 95°F 35°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the ENE to the SE at 10 mph 15 km/h.
Saturday, September 19, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
88°F 31°C
Sunny
Hot and sweltering around 93°F 34°C (heat index 96°F 36°C), sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NNE to the S at 7 mph 11 km/h.
Sunday, September 20, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
94°F 35°C
Scattered Showers
Early-Evening
89°F 32°C
Partly Cloudy
Very hot with a high of 94°F 35°C, feeling closer to 98°F 37°C in the humidity, locally heavy downpours at times, with lower humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
92°F 34°C
Cloudy
Early-Evening
86°F 30°C
Partly Cloudy
Sizzling hot near 92°F 34°C with a heat index reaching 98°F 37°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the N to the SE at 9 mph 13 km/h.
Tuesday, September 22, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
86°F 30°C
Cloudy
Hot and sweltering around 92°F 33°C (heat index 97°F 36°C), partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds swinging from the E to the SSE at 9 mph 13 km/h.
Wednesday, September 23, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
87°F 31°C
Scattered Showers
Very hot with a high of 92°F 33°C, feeling closer to 98°F 36°C in the humidity, locally heavy downpours at times, with lower humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
84°F 29°C
Scattered Showers
Mid-Afternoon
94°F 34°C
Cloudy
Early-Evening
88°F 31°C
Overcast
Sizzling hot near 94°F 34°C with a heat index reaching 97°F 36°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Friday, September 25, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
92°F 34°C
Sunny
Early-Evening
86°F 31°C
Sunny
Hot and sweltering around 92°F 34°C (heat index 95°F 35°C), sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the NE to the NNE at 11 mph 17 km/h. Gusts up to 21 mph 33 km/h.
Saturday, September 26, 2026
Mid-Morning
84°F 29°C
Overcast
Mid-Afternoon
91°F 33°C
Overcast
Early-Evening
84°F 29°C
Sunny
Very hot with a high of 91°F 33°C, feeling closer to 94°F 34°C in the humidity, partly cloudy through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, September 27, 2026
Mid-Morning
80°F 27°C
Partly Cloudy
Mid-Afternoon
87°F 31°C
Sunny
Early-Evening
83°F 29°C
Cloudy
Warm and summery around 87°F 31°C (feels like 92°F 33°C), overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds turning from the ENE to the E at 14 mph 22 km/h. Gusts up to 23 mph 37 km/h.
Monday, September 28, 2026
Mid-Morning
79°F 26°C
Overcast
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
82°F 28°C
Overcast
Quite warm reaching 84°F 29°C, feeling like 87°F 31°C during peak afternoon, overcast throughout the day, with steady humidity and barometric pressure falling. Winds switching from the ENE to the NNE at 17 mph 27 km/h. Gusts up to 30 mph 49 km/h.
Tuesday, September 29, 2026
Mid-Morning
78°F 25°C
Scattered Showers
Mid-Afternoon
87°F 31°C
Overcast
Early-Evening
85°F 30°C
Overcast
Very warm near 87°F 31°C, though humidity makes it feel like 91°F 33°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds tapering down from NNW 21 mph 33 km/h to NNW 13 mph 20 km/h. Gusts up to 22 mph 35 km/h.
Wednesday, September 30, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
89°F 32°C
Sunny
Sizzling hot near 92°F 33°C with a heat index reaching 98°F 37°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the NW to the S at 8 mph 13 km/h.
Thursday, October 1, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
90°F 32°C
Sunny
Hot and sweltering around 95°F 35°C (heat index 99°F 37°C), sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.
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