Geary County State Lake Weather Forecast

    • 23
    • 43

    Becoming Sunny

    • 32
    • 52

    Mostly Sunny

    • 20
    • 43

    Breezy

    • 16
    • 35

    Mostly Sunny

    • 24
    • 46

    Mostly Sunny

    • 18
    • 42

    Mostly Sunny

Today 14 Jan Geary

Mostly sunny. A slight chance of rain in the morning. Much cooler with Highs in the lower 40s. North Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

Tonight 14 Jan Geary

Mostly clear. Colder with Lows in the lower 20s. North Winds 5 to 10 Mph, becoming southwest after midnight.

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Geary County State Lake Temperature Statistics

January Temperature

Fort Riley - Marshall AAF (11.8 miles)

  • Lowest 11 January, 2026

    21.2 °F

  • Average January

    39.7 °F

  • Highest 7 January, 2026

    69.3 °F

Climate (2021–Present)

Fort Riley - Marshall AAF (11.8 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    69 °F
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