Lake De Smet Weather Forecast

    • 37
    • 69

    Mostly Sunny

    • 38
    • 67

    Mostly Sunny

    • 33
    • 59

    Partly Sunny

    • 34
    • 60

    Mostly Cloudy

    • 24
    • 55

    Chance Rain/Snow

    • 23
    • 42

    Chance Snow Showers

Today 5 Feb Northeast Johnson County

Mostly sunny. Highs in the upper 60s. Southwest Winds around 10 Mph in the morning.

Tonight 5 Feb Northeast Johnson County

Mostly clear. Lows in the mid 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake De Smet Temperature Statistics

February Temperature

Buffalo - Johnson County Airport (6.2 miles)

  • Lowest 1 February, 2026

    30.9 °F

  • Average February

    40.4 °F

  • Highest 1 February, 2026

    53.1 °F

Climate (2021–Present)

Buffalo - Johnson County Airport (6.2 miles)

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  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    59 °F
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