League City Weather Forecast
- 78
- 93
Increasing Clouds
- 77
- 93
Slight Chance Thunderstorms
- 79
- 95
Slight Chance Thunderstorms
- 78
- 95
Mostly Sunny
- 76
- 93
Partly Sunny
- 76
- 91
Partly Sunny
- 76
- 91
Partly Sunny
Today 20 Sep Coastal Galveston
Sunny. Near steady temperature around 90. Southeast Winds 5 to 10 Mph. Heat index Values up to 105.
Tonight 20 Sep Coastal Galveston
Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the upper 70s. South Winds 5 to 10 Mph.
League City Temperature Statistics
September Temperature
Houston / Ellington (7.5 miles)
Lowest 10 September, 2026
77 °FAverage September
84.1 °FHighest 7 September, 2026
95 °F
Climate (2021–2026)
Houston / Ellington (7.5 miles)
Average Low 2021–2026
64.4 °FAverage 2021–2026
72 °FAverage High 2021–2026
80.5 °F