| NWS Forecast for: Galveston Island Issued by: National Weather Service Houston, TX Last Update: 1043 PM CDT Sun Apr 19 2026 | |
| Overnight: Mostly cloudy. Near steady temperature in the upper 60s. East winds 15 to 20 mph. Monday: Mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the lower 70s. East winds 15 to 20 mph. Chance of rain 40 percent. Monday Night: Mostly cloudy with a chance of showers. Near steady temperature in the lower 70s. Southeast winds 15 to 20 mph. Chance of rain 50 percent. Tuesday: Showers likely with a chance of thunderstorms. Highs in the mid 70s. Southeast winds 15 to 20 mph. Chance of rain 70 percent. Tuesday Night: A chance of thunderstorms. Showers likely. Lows in the lower 70s. Southeast winds 15 to 20 mph. Chance of rain 70 percent. Wednesday: A chance of thunderstorms. Showers. Highs in the upper 70s. Chance of rain 80 percent. Wednesday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 70s. Thursday: A chance of showers in the morning. Mostly sunny. Highs in the upper 70s. Chance of rain 30 percent. Thursday Night: Mostly cloudy. Near steady temperature in the mid 70s. Friday: Partly sunny. Highs around 80. Friday Night: Partly cloudy. Near steady temperature in the mid 70s. Saturday: Mostly cloudy in the morning, then becoming mostly sunny. Highs around 80. Saturday Night: Mostly cloudy. Near steady temperature in the mid 70s. Sunday: Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 70s. | |
| Zone Forecast: Galveston Island | |
Visit your local NWS office at: https://www.weather.gov/hgx |