Barth Lake Weather Forecast
- 56
- 91
Increasing Clouds
- 53
- 88
Partly Sunny
- 49
- 78
Breezy
- 44
- 78
Sunny
- 53
- 82
Partly Sunny
- 60
- 85
Partly Sunny
Today 13 Mar Caldwell
Sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph.
Tonight 13 Mar Caldwell
Partly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.
Barth Lake Temperature Statistics
March Temperature
San Marcos, San Marcos Municipal Airport (10.6 miles)
Lowest 10 March, 2025
37 °FAverage March
63.8 °FHighest 8 March, 2025
86 °F
Climate (2020–Present)
San Marcos, San Marcos Municipal Airport (10.6 miles)
Average Low 2020–2025
59.1 °FAverage 2020–2025
69.7 °FAverage High 2020–2025
81.5 °F