Imlay Weather Forecast

    • 45
    • 73

    Becoming Sunny

    • 51
    • 95

    Breezy

    • 45
    • 79

    Mostly Sunny

    • 58
    • 91

    Breezy

    • 53
    • 94

    Partly Sunny

    • 53
    • 89

    Breezy

Today 10 May Pennington Co Plains

Mostly sunny. Highs in the lower 70s. North Winds 5 to 10 Mph.

Tonight 10 May Pennington Co Plains

Mostly clear. Lows in the mid 40s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Imlay Temperature Statistics

May Temperature

Rapid City, Rapid City Regional Airport (39.8 miles)

  • Lowest 6 May, 2026

    23.6 °F

  • Average May

    48 °F

  • Highest 2 May, 2026

    80.7 °F

Climate (2021–Present)

Rapid City, Rapid City Regional Airport (39.8 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    63.1 °F
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