Weather forecast for: Decatur TX
Last Update: 11:41 pm CDT Sep 10, 2026
Overnight: Mostly cloudy, with a low around 72. Calm wind becoming east around 5 mph.
Friday: A 20 percent chance of showers before 10am. Mostly sunny, with a high near 97. Heat index values as high as 101. East southeast wind around 5 mph becoming south southwest in the afternoon.
Friday Night: Mostly clear, with a low around 75. South wind around 5 mph.
Saturday: Sunny and hot, with a high near 100. Heat index values as high as 103. South wind 5 to 10 mph.
Saturday Night: Clear, with a low around 76. Southeast wind 5 to 10 mph.
Sunday: Sunny and hot, with a high near 100. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night: Mostly clear, with a low around 76. South southeast wind around 10 mph.
Monday: Sunny and hot, with a high near 99. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night: Clear, with a low around 77. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday: Sunny and hot, with a high near 99.
Tuesday Night: Mostly clear, with a low around 76.
Wednesday: Sunny and hot, with a high near 99.
Wednesday Night: Clear, with a low around 75.
Thursday: Sunny, with a high near 97.
WeatherWorld.com
City of Decatur, Texas
