Marine Weather Net

Galveston, TX Weather Forecast


Marine Forecast: Galveston Bay


Galveston, Texas

 Lat: 29.23N, Lon: 94.89W

Current Conditions Updated: 452 AM CDT WED AUG 26 2026

Partly Cloudy
Temp: 83°F
  • Humidity:
  • 87%
  • Winds:
  • 3 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30 in.
  • Dewpoint:
  • 79°F
  • Heat index:
  • 93°F

  • Sunrise:
  • 6:52 AM CDT
  • Sunset:
  • 7:46 PM CDT
  • Moonrise:
  • 7:06 PM CDT
  • Moonset:
  • 5:21 AM CDT

TONIGHT

MOSTLY CLEAR
Lo: 79°F

WEDNESDAY

SUNNY

Hi: 99°F
Lo: 77°F

THURSDAY

MOSTLY SUNNY
Hi: 99°F
Lo: 77°F

FRIDAY

MOSTLY SUNNY
Hi: 91°F
Lo: 79°F
Precip: 50%
Weather Forecast In Detail:
Forecast Issued: 227 AM CDT Wed Aug 26 2026

HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
Rest Of Tonight...Mostly clear. Near steady temperature in the upper 70s. Southwest winds around 5 mph.
Wednesday...Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 111 in the afternoon.
Wednesday Night...Mostly clear. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph. Heat index values up to 107 early in the evening.
Thursday...Mostly sunny. Hot with highs in the upper 90s. West winds around 5 mph, becoming south in the afternoon. Heat index values up to 111.
Thursday Night...Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 70s. South winds 5 to 10 mph, becoming southwest after midnight. Chance of rain 50 percent. Heat index values up to 106 early in the evening.
Friday...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 110.
Friday Night...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
Saturday...Sunny. Highs in the lower 90s. Heat index values up to 105.
Saturday Night...Clear. Lows in the mid 70s.
Sunday...Sunny. Highs in the lower 90s. Heat index values up to 105.
Sunday Night...Clear. Lows in the upper 70s.
Monday...Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105.
Monday Night...Mostly clear. Lows in the upper 70s.
Tuesday...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 105.
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