| NWS Forecast for: Galveston Island Issued by: National Weather Service Houston, TX Last Update: 428 PM CDT Tue Jul 15 2025 | |
| Tonight: Mostly clear. Lows in the lower 80s. South winds 10 to 15 mph. Heat index values up to 106 early. Wednesday: Sunny with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 106. Wednesday Night: Partly cloudy. Humid with lows around 80. South winds 5 to 10 mph. Thursday: Partly sunny. Humid with highs in the lower 90s. West winds around 5 mph, becoming southeast in the afternoon. Thursday Night: Mostly cloudy. A chance of showers after midnight. Humid with lows in the lower 80s. South winds 5 to 10 mph. Chance of rain 50 percent. Friday: Showers and thunderstorms likely in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 70 percent. Friday Night: Mostly cloudy. Lows in the lower 80s. Saturday: Partly sunny. A chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 105. Saturday Night: Mostly cloudy. Lows in the lower 80s. Sunday: Mostly sunny. Highs in the lower 90s. Heat index values up to 105. Sunday Night: Partly cloudy. Lows in the lower 80s. Monday: Mostly sunny. Highs in the lower 90s. Heat index values up to 105. Monday Night: Partly cloudy. Lows in the lower 80s. Tuesday: Sunny. Highs in the lower 90s. Heat index values up to 105. | |
| Zone Forecast: Galveston Island | |
Visit your local NWS office at: https://www.weather.gov/hgx |