| NWS Forecast for: Galveston Island Issued by: National Weather Service Houston, TX Last Update: 432 AM CDT Sun Aug 2 2026 | |
Today: Mostly sunny. A chance of showers and thunderstorms this morning. Highs in the lower 90s. West winds 10 to 15 mph. Chance of rain 30 percent. Tonight: Mostly clear. Humid with lows in the lower 80s. Southwest winds 5 to 10 mph. Monday: Sunny with highs in the lower 90s. West winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 105. Monday Night: Mostly clear. Humid with lows in the lower 80s. South winds 10 to 15 mph. Tuesday: Sunny with highs around 90. South winds 10 to 15 mph. Heat index values up to 106. Tuesday Night: Clear. Lows in the lower 80s. Wednesday: Sunny. Highs around 90. Heat index values up to 105. Wednesday Night: Mostly clear. Near steady temperature in the mid 80s. Thursday: Sunny. Highs in the upper 80s. Thursday Night: Mostly clear. Lows in the lower 80s. Friday: Sunny. Highs in the upper 80s. Friday Night: Mostly clear. Lows in the lower 80s. Saturday: Mostly sunny. Highs in the upper 80s. | |
| Zone Forecast: Galveston Island | |
Visit your local NWS office at: https://www.weather.gov/hgx |