Kirwin Reservoir Weather Forecast

    • 28
    • 55

    Mostly Sunny

    • 33
    • 58

    Partly Sunny

    • 27
    • 63

    Partly Sunny

    • 19
    • 47

    Mostly Cloudy

    • 22
    • 39

    Mostly Cloudy

    • 18
    • 46

    Mostly Cloudy

    • 17
    • 40

    Partly Sunny

Today 31 Jan Phillips

Sunny. Northeast Winds around 10 Mph.

Tonight 31 Jan Phillips

Clear. Lows in the upper 20s. Southeast Winds around 10 Mph then becoming 10 to 15 Mph after midnight.

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Kirwin Reservoir Temperature Statistics

January Temperature

Hill City, Hill City Municipal Airport (41.6 miles)

  • Lowest 21 January, 2025

    -8.2 °F

  • Average January

    25.3 °F

  • Highest 28 January, 2025

    63 °F

Climate (2020–Present)

Hill City, Hill City Municipal Airport (41.6 miles)

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  • Average Low 2020–2025

    41.9 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    69.8 °F
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