| NWS Forecast for: Starr County Issued by: National Weather Service Brownsville, TX Last Update: 127 PM CDT Sun Sep 20 2026 |  |
| This Afternoon: Mostly sunny. Hot with highs around 101. East winds around 5 mph. Tonight: Partly cloudy. Lows in the upper 70s. Southeast winds 5 to 10 mph. Gusts up to 20 mph in the evening. Monday: Sunny, hot with highs around 102. East winds 5 to 10 mph. Heat index values up to 109. Monday Night: Mostly clear. Lows in the upper 70s. East winds 5 to 10 mph. Gusts up to 20 mph in the evening. Tuesday: Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. East winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 50 percent. Heat index values up to 106. Tuesday Night: Mostly clear. Lows in the mid 70s. Wednesday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 50 percent. Heat index values up to 105. Wednesday Night: Mostly clear. Lows in the mid 70s. Thursday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 50 percent. Heat index values up to 105. Thursday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Friday: Mostly sunny. A chance of showers in the afternoon. Highs in the upper 90s. Chance of rain 40 percent. Heat index values up to 105. Friday Night: Partly cloudy in the evening, then clearing. Lows in the mid 70s. Saturday: Mostly sunny. Highs in the upper 90s. | |
| Zone Forecast: Starr County | |
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