Geary County State Lake Weather Forecast
- 58
- 72
Chance Thunderstorms
- 62
- 79
Chance Thunderstorms
- 63
- 79
Chance Thunderstorms
- 63
- 79
Partly Sunny
- 58
- 80
Chance Rain Showers
- 56
- 74
Slight Chance Thunderstorms
Today 18 Sep Geary
Cloudy Early, then becoming partly sunny. A chance of Thunderstorms. A chance of Showers. Near steady temperature around 70. South Winds around 5 Mph, becoming southwest. Chance of rain 50 percent.
Tonight 18 Sep Geary
Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. Southwest Winds around 5 Mph.
Geary County State Lake Temperature Statistics
September Temperature
Fort Riley - Marshall AAF (11.8 miles)
Lowest 7 September, 2025
48.9 °FAverage September
71.3 °FHighest 12 September, 2025
94.5 °F
Climate (2020–Present)
Fort Riley - Marshall AAF (11.8 miles)
Average Low 2020–2025
45.7 °FAverage 2020–2025
57.2 °FAverage High 2020–2025
68.8 °F