Local Forecast for Dallas, TX Currently 84.0°F HI: 97.0°F LO: 78.0°F Extended Forecast Overnight Increasing clouds, with a low around 78. South wind 10 to 15 mph. Thursday Partly sunny, with a high near 97. Heat index values as high as 104. South wind 10 to 15 mph, with gusts as high as 20 mph. Thursday Night Increasing clouds, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph. Friday Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 20 mph. Friday Night Partly cloudy, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph. Saturday Partly sunny, with a high near 97. South wind around 15 mph, with gusts as high as 20 mph. Saturday Night Partly cloudy, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph. Sunday A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 92. South wind 5 to 10 mph. Chance of precipitation is 30%. Sunday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. South southeast wind 5 to 10 mph. Monday A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 92. Monday Night A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 74. Tuesday A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92. Tuesday Night A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.