| NWS Forecast for: Johnson County Issued by: National Weather Service Dallas/Fort Worth, TX Last Update: 208 AM CDT Wed Aug 19 2026 | |
Today: Sunny, hot with highs around 104. Southwest winds 5 to 10 mph. Tonight: Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Thursday: Sunny, hot with highs around 103. Southwest winds 5 to 10 mph. Heat index values up to 108 in the afternoon. Thursday Night: Mostly clear. Lows in the upper 70s. South winds around 5 mph. Friday: Sunny, hot with highs around 103. Southwest winds around 5 mph, becoming south in the afternoon. Heat index values up to 108 in the afternoon. Friday Night: Mostly clear. Lows in the upper 70s. Saturday: Sunny, hot with highs 100 to 105. Heat index values up to 110 in the afternoon. Saturday Night: Mostly clear. Lows in the upper 70s. Sunday: Sunny, hot with highs around 105. Heat index values up to 110 in the afternoon. Sunday Night: Mostly clear. Lows in the upper 70s. Monday: Sunny, hot with highs 100 to 105. Heat index values up to 105. Monday Night: Mostly clear. Lows in the upper 70s. Tuesday: Sunny, hot with highs 100 to 105. Heat index values up to 105. | |
| Zone Forecast: Johnson County | |
Visit your local NWS office at: https://www.weather.gov/fwd |