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Mountain Brook, AL Weather Forecast
Mountain Brook, AL Weather Forecast Dated: 426 AM Thu Sep 10 2026
Expect a very warm period with plenty of sunshine and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.
Thursday, September 10, 2026
Mid-Morning
80°F 27°C
Partly Cloudy
Mid-Afternoon
86°F 30°C
Overcast
Early-Evening
84°F 29°C
Cloudy
Warm and summery near 86°F 30°C, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling.
Friday, September 11, 2026
Mid-Morning
78°F 26°C
Cloudy
Mid-Afternoon
87°F 31°C
Nearby Thunderstorms
Early-Evening
82°F 27°C
Scattered Showers
Quite warm reaching 87°F 31°C, feeling like 92°F 33°C during peak afternoon, locally heavy thunderstorms at times, with steady humidity and steady pressure. A stray shower or storm late in the day.
Saturday, September 12, 2026
Mid-Morning
77°F 25°C
Heavy Rain Showers
Mid-Afternoon
84°F 29°C
Heavy Rain Showers
Early-Evening
79°F 26°C
Light Showers
Very warm near 84°F 29°C, though humidity makes it feel like 90°F 32°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Thunderstorms possible in the afternoon and evening.
Sunday, September 13, 2026
Mid-Morning
76°F 25°C
Scattered Showers
Mid-Afternoon
88°F 31°C
Overcast
Early-Evening
85°F 29°C
Nearby Thunderstorms
Warm and summery around 88°F 31°C (feels like 93°F 34°C), periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
89°F 32°C
Partly Cloudy
Early-Evening
86°F 30°C
Scattered Showers
Quite warm reaching 89°F 32°C, feeling like 94°F 35°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure.
Tuesday, September 15, 2026
Mid-Morning
83°F 29°C
Overcast
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
88°F 31°C
Cloudy
Very hot with a high of 91°F 33°C, feeling closer to 95°F 35°C in the humidity, cloudy throughout the day, with lower humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
89°F 32°C
Sunny
Sizzling hot near 95°F 35°C with a heat index reaching 98°F 37°C, sunny throughout the day, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
90°F 33°C
Cloudy
Hot and sweltering around 96°F 36°C (heat index 100°F 38°C), sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
81°F 27°C
Partly Cloudy
Very hot with a high of 95°F 35°C, feeling closer to 98°F 37°C in the humidity, partly cloudy through the afternoon, turning overcast this evening, with increasing humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
71°F 22°C
Sunny
Very warm with a high of 80°F 27°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the N to the ESE at 10 mph 16 km/h. Gusts up to 22 mph 36 km/h.
Sunday, September 20, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
76°F 25°C
Sunny
Warm and summery near 82°F 28°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the E to the ESE at 6 mph 10 km/h.
Monday, September 21, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
80°F 26°C
Sunny
Early-Evening
74°F 23°C
Sunny
Balmy with temperatures reaching 80°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds ESE at 8 mph 12 km/h.
Tuesday, September 22, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
83°F 29°C
Sunny
Early-Evening
78°F 26°C
Sunny
Quite warm around 83°F 29°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Wednesday, September 23, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
72°F 23°C
Scattered Showers
Mild temperatures up to 77°F 25°C, scattered downpours possible, with steady humidity and steady pressure.
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