St. James, LA 14 Day Weather - 70086 WeatherWorld.com
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St. James, LA Weather Forecast


St. James, LA Weather Forecast Dated: 447 PM Sun Sep 13 2026
Expect a hot stretch with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.
Sunday, September 13, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
90°F 32°C
Overcast
Early-Evening
84°F 29°C
Overcast
Sizzling hot near 90°F 32°C with a heat index reaching 99°F 37°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. A stray shower or storm late in the day.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
90°F 32°C
Scattered Showers
Early-Evening
83°F 29°C
Scattered Showers
Hot and sweltering around 90°F 32°C (heat index 99°F 37°C), scattered downpours possible, with steady humidity and steady pressure.
Tuesday, September 15, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
97°F 36°C
Partly Cloudy
Early-Evening
82°F 28°C
Cloudy
Very hot with a high of 97°F 36°C, feeling closer to 103°F 40°C in the humidity, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
91°F 33°C
Cloudy
Early-Evening
84°F 29°C
Sunny
Sizzling hot near 91°F 33°C with a heat index reaching 96°F 36°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds turning from the E to the SE at 9 mph 13 km/h.
Thursday, September 17, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
83°F 29°C
Sunny
Very hot with a high of 93°F 34°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NE to the SSE at 6 mph 10 km/h.
Friday, September 18, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
86°F 30°C
Sunny
Very hot with a high of 97°F 36°C, feeling closer to 101°F 38°C in the humidity, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
82°F 28°C
Scattered Showers
Mid-Afternoon
93°F 34°C
Light Showers
Early-Evening
78°F 25°C
Scattered Showers
Sizzling hot near 93°F 34°C with a heat index reaching 99°F 37°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds moving from the W to the SW at 4 mph 7 km/h.
Sunday, September 20, 2026
Mid-Morning
78°F 26°C
Sunny
Mid-Afternoon
90°F 32°C
Scattered Showers
Early-Evening
80°F 27°C
Sunny
Hot and sweltering around 90°F 32°C (heat index 93°F 34°C), scattered downpours possible, with lower humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
80°F 26°C
Sunny
Mid-Afternoon
86°F 30°C
Overcast
Early-Evening
80°F 27°C
Overcast
Very warm near 86°F 30°C, though humidity makes it feel like 91°F 33°C, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
90°F 32°C
Overcast
Early-Evening
82°F 28°C
Partly Cloudy
Sizzling hot near 90°F 32°C with a heat index reaching 97°F 36°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
76°F 25°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
79°F 26°C
Sunny
Very hot with temperatures reaching 91°F 33°C, sunny throughout the day, with steady humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
72°F 23°C
Sunny
Balmy with temperatures reaching 84°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds out of the N at 11 mph 17 km/h.
Friday, September 25, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
83°F 29°C
Sunny
Early-Evening
73°F 23°C
Sunny
Quite warm around 83°F 29°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the NNE to the NE at 6 mph 10 km/h.
Saturday, September 26, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
74°F 23°C
Partly Cloudy
Warm temperatures up to 84°F 29°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
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