Diversion Lake Weather Forecast
- 68
- 94
Mostly Sunny
- 68
- 93
Mostly Sunny
- 68
- 94
Partly Sunny
- 69
- 93
Partly Sunny
- 69
- 93
Chance Rain Showers
- 69
- 93
Slight Chance Thunderstorms
Today 15 Sep Medina
Sunny this Morning, then becoming partly cloudy. Highs in the lower 90s. Southeast Winds 5 to 10 Mph.
Tonight 15 Sep Medina
Mostly clear. Lows in the upper 60s. East Winds 5 to 10 Mph.
Diversion Lake Temperature Statistics
September Temperature
Castroville Municipal Airport (13 miles)
Lowest 9 September, 2025
64.4 °FAverage September
80.9 °FHighest 4 September, 2025
100.4 °F
Climate (2020–Present)
Castroville Municipal Airport (13 miles)
Average Low 2020–2025
61.2 °FAverage 2020–2025
72 °FAverage High 2020–2025
83.9 °F