7-Day Zone Forecast for Galveston Island (Text-Only)
NWS Forecast for: Galveston Island
Issued by: National Weather Service Houston, TX
Last Update: 122 AM CDT Sun Jun 14 2026
Print




Rest Of Tonight: Partly cloudy. Near steady temperature in the mid 80s. South winds 15 to 20 mph.

Sunday: Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. South winds around 15 mph. Chance of rain 50 percent. Heat index values up to 105.

Sunday Night: Mostly cloudy. A chance of showers and thunderstorms after midnight. Humid with lows in the lower 80s. South winds 10 to 15 mph. Chance of rain 40 percent.

Monday: Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the upper 80s. South winds 10 to 15 mph. Chance of rain 30 percent.

Monday Night: Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Humid with lows in the lower 80s. South winds around 10 mph. Chance of rain 80 percent.

Tuesday: A chance of thunderstorms. Showers, mainly in the morning. Highs in the upper 80s. Chance of rain 90 percent.

Tuesday Night: Mostly cloudy. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Near steady temperature in the lower 80s. Chance of rain 60 percent.

Wednesday: Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.

Wednesday Night: Mostly cloudy with a chance of thunderstorms. A chance of showers. Windy. Near steady temperature in the mid 80s. Chance of rain 40 percent.

Thursday: Mostly sunny with a chance of showers and thunderstorms. Windy. Near steady temperature in the mid 80s. Chance of rain 40 percent. Heat index values up to 105.

Thursday Night: Partly cloudy with a chance of showers and thunderstorms. Breezy. Near steady temperature in the mid 80s. Chance of rain 40 percent.

Juneteenth: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. Heat index values up to 105.

Friday Night: Mostly cloudy with a chance of showers. Near steady temperature in the mid 80s. Chance of rain 30 percent.

Saturday: Partly sunny. Near steady temperature in the mid 80s.







Zone Forecast: Galveston Island

Visit your local NWS office at: https://www.weather.gov/hgx