Lewisville, TX

Current conditions, hourly and 7-day forecast, and live radar for Lewisville, TX 75057. Right now: mostly clear, 81°F. Data from the National Weather Service.

• Tonight: Mostly clear. Low around 81, with temperatures rising to around 83 overnight. Heat index values as high as 102. South wind 5 to 10 mph.
• Thursday: A chance of showers and thunderstorms after 1pm. Sunny, with a high near 100. Heat index values as high as 106. South wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
• Thursday Night: A chance of showers and thunderstorms before 1am. Partly cloudy. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 104. East southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
• Friday: Mostly sunny. High near 100, with temperatures falling to around 98 in the afternoon. Heat index values as high as 108. South wind 5 to 10 mph.
• Friday Night: Mostly clear. Low around 80, with temperatures rising to around 82 overnight. South wind around 10 mph.
• Saturday: Sunny, with a high near 101. South wind around 10 mph.