| NWS Forecast for: Galveston Island Issued by: National Weather Service Houston, TX Last Update: 1207 AM CDT Tue Jul 28 2026 | |
| Rest Of Tonight: Mostly clear. Near steady temperature in the lower 80s. Southwest winds 10 to 15 mph. Tuesday: Sunny with highs around 90. Southwest winds 10 to 15 mph. Heat index values up to 106. Tuesday Night: Mostly clear. Humid with lows in the lower 80s. Southwest winds 10 to 15 mph. Wednesday: Sunny with highs in the lower 90s. Southwest winds 10 to 15 mph. Heat index values up to 107. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 80s. South winds 10 to 15 mph. Heat index values up to 105 early. Thursday: Mostly sunny. Highs in the lower 90s. Heat index values up to 105. Thursday Night: Partly cloudy. Lows in the lower 80s. Heat index values up to 105 early. Friday: Mostly sunny. Highs in the lower 90s. Heat index values up to 110. Friday Night: Partly cloudy. Lows in the mid 80s. Heat index values up to 105 early. Saturday: Mostly sunny and breezy. Highs in the lower 90s. Heat index values up to 110. Saturday Night: Partly cloudy and breezy. Lows in the mid 80s. Heat index values up to 110 early. Sunday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 110. Sunday Night: Partly cloudy. Lows in the lower 80s. Heat index values up to 105 early. Monday: Mostly sunny. Highs in the lower 90s. Heat index values up to 110. | |
| Zone Forecast: Galveston Island | |
Visit your local NWS office at: https://www.weather.gov/hgx |