Seawillow Weather Forecast
- 35
- 71
Increasing Clouds
- 28
- 55
Partly Sunny
- 20
- 43
Sunny
- 33
- 56
Mostly Sunny
- 50
- 65
Mostly Cloudy
- 50
- 72
Chance Rain Showers
- 39
- 64
Chance Rain Showers
Today 29 Jan Caldwell
Mostly sunny. Not as cool with Highs in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.
Tonight 29 Jan Caldwell
Partly cloudy. Lows in the mid 30s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.
Seawillow Temperature Statistics
January Temperature
San Marcos, San Marcos Municipal Airport (16.2 miles)
Lowest 27 January, 2026
18 °FAverage January
53.5 °FHighest 2 January, 2026
89.1 °F
Climate (2021–Present)
San Marcos, San Marcos Municipal Airport (16.2 miles)
Average Low 2021–2026
59.6 °FAverage 2021–2026
70.3 °FAverage High 2021–2026
81.9 °F