Clear Lake Weather Forecast
- 48
- 74
Mostly Sunny
- 45
- 74
Slight Chance Rain Showers
- 47
- 74
Sunny
- 49
- 78
Sunny
- 54
- 79
Sunny
- 55
- 82
Mostly Sunny
Today 31 Oct Hays
Sunny. Highs in the mid 70s. South Winds around 5 Mph.
Tonight 31 Oct Hays
Clear. Lows in the upper 40s. Southeast Winds around 5 Mph.
Clear Lake Temperature Statistics
October Temperature
San Marcos, San Marcos Municipal Airport (18.6 miles)
Lowest 20 October, 2025
57.9 °FAverage October
78.2 °FHighest 1 October, 2025
96.1 °F
Climate (2020–Present)
San Marcos, San Marcos Municipal Airport (18.6 miles)
Average Low 2020–2025
59.3 °FAverage 2020–2025
70.1 °FAverage High 2020–2025
81.8 °F