Galveston, TX Weather Forecast
Galveston County, Texas
Seven-day outlook
67–77°F across the weekThe week runs between 68° and 77°, with Monday the warmest day of it. There is no real trend across it: one day looks much like the next. Tuesday is the wettest day, peaking near 44%. 3 of the 7 days stay dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the Galveston forecast
Galveston sits at 29.1863°N, 94.9658°W in Galveston County, Texas. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Galveston County
- Coordinates
- 29.1863°N, 94.9658°W
- Population
- 53,237 · 2023 estimate
- Land area
- 41.036 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Galveston, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Galveston?
The nearest Doppler radar is KHGX (Houston, TX), 21 miles to the NNW. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Galveston its center is about 1,200 ft above ground. That is about as close as radar coverage gets in the United States: the lowest scan is still near the ground when it reaches Galveston, so low-level rotation and the leading edge of a gust front show up on it. Galveston is closer to its radar than 84% of US cities.
The closest instrument actually measuring the air is KGLS · Galveston/Scholes Intl on the ASOS/AWOS network, 8.4 miles away. Near enough to be representative on most days, though a summer thunderstorm can soak one and miss the other entirely.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Texas observing network as of this build.
Forecasts near Galveston
- Hitchcock, TX7 mi
- La Marque, TX13 mi
- Santa Fe, TX16 mi
- Texas City, TX18 mi
- Dickinson, TX19 mi
- Alvin, TX23 mi
- League City, TX23 mi
- Kemah, TX24 mi
Elsewhere in Texas
HoustonSan AntonioDallasAustinFort WorthEl PasoAll Texas forecasts →