Kirwin Reservoir Weather Forecast

    • 32
    • 57

    Mostly Sunny

    • 39
    • 72

    Sunny

    • 39
    • 78

    Mostly Sunny

    • 33
    • 69

    Slight Chance Rain

    • 30
    • 57

    Mostly Sunny

    • 41
    • 70

    Partly Sunny

Today 7 Mar Phillips

Sunny. Highs in the upper 50s. Northwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 7 Mar Phillips

Partly cloudy. Much Colder. Lows in the upper 20s. Northwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

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Kirwin Reservoir Temperature Statistics

March Temperature

Hill City, Hill City Municipal Airport (41.6 miles)

  • Lowest 1 March, 2026

    22.6 °F

  • Average March

    36.9 °F

  • Highest 4 March, 2026

    61 °F

Climate (2021–Present)

Hill City, Hill City Municipal Airport (41.6 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    70.4 °F
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