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Post Oak, TX Weather Forecast
Post Oak, TX Weather Forecast Dated: 124 AM Thu Sep 10 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.
Thursday, September 10, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
96°F 35°C
Scattered Showers
Early-Evening
89°F 32°C
Scattered Showers
Sizzling hot near 96°F 35°C with a heat index reaching 100°F 38°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds turning from the S to the SE at 11 mph 17 km/h.
Friday, September 11, 2026
Mid-Morning
81°F 27°C
Scattered Showers
Mid-Afternoon
97°F 36°C
Partly Cloudy
Early-Evening
87°F 31°C
Nearby Thunderstorms
Hot and sweltering around 97°F 36°C (heat index 100°F 38°C), scattered downpours possible, with lower humidity and steady pressure. Winds switching from the SW to the SSE at 14 mph 22 km/h. Gusts up to 20 mph 31 km/h.
Saturday, September 12, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
98°F 37°C
Partly Cloudy
Early-Evening
89°F 32°C
Sunny
Very hot with a high of 98°F 37°C, feeling closer to 101°F 39°C in the humidity, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the S to the SSE at 15 mph 23 km/h. Gusts up to 22 mph 34 km/h.
Sunday, September 13, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
92°F 33°C
Partly Cloudy
Sizzling hot near 97°F 36°C with a heat index reaching 101°F 38°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the S to the SSE at 16 mph 26 km/h. Gusts up to 26 mph 42 km/h.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
89°F 32°C
Sunny
Hot and sweltering around 99°F 37°C (heat index 104°F 40°C), sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds blowing from the SSE at 14 mph 23 km/h. Gusts up to 25 mph 40 km/h.
Tuesday, September 15, 2026
Mid-Morning
83°F 29°C
Light Fog
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
92°F 34°C
Sunny
Very hot with a high of 99°F 37°C, feeling closer to 102°F 39°C in the humidity, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the S to the SSE at 16 mph 25 km/h. Gusts up to 21 mph 34 km/h.
Wednesday, September 16, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
98°F 36°C
Sunny
Early-Evening
92°F 34°C
Partly Cloudy
Sizzling hot near 98°F 36°C with a heat index reaching 101°F 38°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the S to the SSE at 12 mph 18 km/h.
Thursday, September 17, 2026
Mid-Morning
81°F 27°C
Fog
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
92°F 34°C
Sunny
Sizzling hot with 97°F 36°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds moving from the SSW to the SSE at 9 mph 14 km/h.
Friday, September 18, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
81°F 27°C
Nearby Thunderstorms
Early-Evening
77°F 25°C
Light Showers
Very warm near 81°F 27°C, though humidity makes it feel like 85°F 29°C, heavy thunderstorms conditions at times, with steady humidity and steady pressure. Winds swinging from the NW to the NE at 9 mph 15 km/h.
Saturday, September 19, 2026
Mid-Morning
74°F 24°C
Overcast
Mid-Afternoon
88°F 31°C
Overcast
Early-Evening
83°F 28°C
Partly Cloudy
Very warm with a high of 88°F 31°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds out of the NE at 10 mph 17 km/h.
Sunday, September 20, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
82°F 28°C
Sunny
Warm and summery near 89°F 32°C, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the NE at 8 mph 13 km/h.
Monday, September 21, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
85°F 29°C
Sunny
Hot and sweltering around 91°F 33°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the NE to the ENE at 9 mph 14 km/h.
Tuesday, September 22, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
86°F 30°C
Sunny
Sizzling hot with 93°F 34°C, sunny throughout the day, with lower humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
89°F 32°C
Sunny
Hot temperatures near 96°F 36°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the SE to the NNE at 13 mph 20 km/h.
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