Alamo Weather Forecast
- 63
- 83
Rain Showers
- 60
- 85
Mostly Sunny
- 63
- 89
Mostly Sunny
- 51
- 80
Mostly Sunny
- 48
- 72
Sunny
- 46
- 73
Mostly Sunny
Today 25 Oct Hays
Showers. A chance of Thunderstorms in the Morning, then Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall in the morning. Some Thunderstorms may be severe in the afternoon. Highs in the lower 80s. South Winds 10 to 15 Mph. Chance of rain 90 percent.
Tonight 25 Oct Hays
Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the lower 60s. East Winds around 5 Mph, becoming northwest after midnight. Chance of rain 40 percent.
Alamo Temperature Statistics
October Temperature
San Marcos, San Marcos Municipal Airport (5 miles)
Lowest 20 October, 2025
57.9 °FAverage October
78.5 °FHighest 1 October, 2025
96.1 °F
Climate (2020–Present)
San Marcos, San Marcos Municipal Airport (5 miles)
Average Low 2020–2025
59.2 °FAverage 2020–2025
70 °FAverage High 2020–2025
81.7 °F