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Old Union, TX 14 Day Weather - WeatherWorld.com
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Old Union, TX Weather Forecast
Old Union, TX Weather Forecast Dated: 436 PM Wed Sep 09 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.
Wednesday, September 9, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
97°F 36°C
Overcast
Early-Evening
90°F 32°C
Cloudy
Sizzling hot near 97°F 36°C with a heat index reaching 104°F 40°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the SE at 11 mph 17 km/h.
Thursday, September 10, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
94°F 35°C
Light Showers
Early-Evening
86°F 30°C
Scattered Showers
Hot and sweltering around 94°F 35°C (heat index 98°F 37°C), scattered downpours possible, with lower humidity and barometric pressure falling. Winds switching from the S to the SSE at 10 mph 15 km/h.
Friday, September 11, 2026
Mid-Morning
79°F 26°C
Overcast
Mid-Afternoon
94°F 35°C
Scattered Showers
Early-Evening
85°F 30°C
Light Showers
Very hot with a high of 94°F 35°C, feeling closer to 99°F 37°C in the humidity, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the SSW to the SE at 9 mph 15 km/h.
Saturday, September 12, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
98°F 37°C
Partly Cloudy
Early-Evening
87°F 31°C
Scattered Showers
Sizzling hot near 98°F 37°C with a heat index reaching 102°F 39°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the SSW to the SSE at 16 mph 26 km/h. Gusts up to 25 mph 41 km/h.
Sunday, September 13, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
98°F 36°C
Scattered Showers
Early-Evening
88°F 31°C
Scattered Showers
Hot and sweltering around 98°F 36°C (heat index 102°F 39°C), scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the S to the SE at 16 mph 25 km/h. Gusts up to 27 mph 43 km/h.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Light Fog
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
93°F 34°C
Nearby Thunderstorms
Very hot with a high of 99°F 37°C, feeling closer to 103°F 40°C in the humidity, heavy thunderstorms conditions at times, with lower humidity and barometric pressure falling. Winds turning from the S to the SSE at 13 mph 22 km/h. Gusts up to 22 mph 34 km/h.
Tuesday, September 15, 2026
Mid-Morning
82°F 28°C
Light Fog
Mid-Afternoon
98°F 37°C
Partly Cloudy
Early-Evening
91°F 33°C
Sunny
Sizzling hot near 98°F 37°C with a heat index reaching 102°F 39°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds switching from the S to the SSE at 12 mph 18 km/h. Gusts up to 20 mph 33 km/h.
Wednesday, September 16, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
92°F 33°C
Overcast
Hot and sweltering around 97°F 36°C (heat index 100°F 38°C), sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the SSW to the SSE at 9 mph 14 km/h.
Thursday, September 17, 2026
Mid-Morning
83°F 29°C
Sunny
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
93°F 34°C
Partly Cloudy
Very hot with a high of 98°F 37°C, feeling closer to 101°F 38°C in the humidity, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds swinging from the SSW to the SE at 7 mph 12 km/h.
Friday, September 18, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
98°F 37°C
Scattered Showers
Early-Evening
93°F 34°C
Scattered Showers
Sizzling hot near 98°F 37°C with a heat index reaching 102°F 39°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
86°F 30°C
Sunny
Mid-Afternoon
98°F 37°C
Partly Cloudy
Early-Evening
93°F 34°C
Cloudy
Hot and sweltering around 98°F 37°C (heat index 102°F 39°C), sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds shifting from the SW to the SSE at 10 mph 17 km/h.
Sunday, September 20, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
94°F 35°C
Sunny
Dangerously hot with a high of 100°F 38°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the SSW to the SE at 11 mph 18 km/h. Gusts up to 21 mph 33 km/h.
Monday, September 21, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
92°F 33°C
Sunny
Sizzling hot with 99°F 37°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the SSW to the SE at 11 mph 17 km/h. Gusts up to 20 mph 32 km/h.
Tuesday, September 22, 2026
Mid-Morning
79°F 26°C
Overcast
Mid-Afternoon
94°F 35°C
Scattered Showers
Early-Evening
87°F 30°C
Cloudy
Hot and sweltering around 94°F 35°C (heat index 97°F 36°C), scattered downpours possible, with lower humidity and barometric pressure falling. Winds moving from the W to the NE at 9 mph 15 km/h.
Old Union, TX Weather Radar Map
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