Imlay Weather Forecast

    • 40
    • 93

    Slight Chance Rain

    • 37
    • 60

    Mostly Cloudy

    • 40
    • 71

    Mostly Cloudy

    • 40
    • 68

    Mostly Cloudy

    • 39
    • 84

    Partly Sunny

    • 26
    • 57

    Breezy

Today 21 Mar Pennington Co Plains

Sunny, breezy with Highs around 90. Southwest Winds 10 to 15 Mph, increasing to 15 to 25 Mph with Gusts up to 35 Mph in the afternoon.

Tonight 21 Mar Pennington Co Plains

Partly cloudy in the Evening, then mostly cloudy with a chance of rain after midnight. Breezy with Lows in the lower 40s. North Winds 20 to 30 Mph with Gusts up to 40 Mph. Chance of rain 40 percent.

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Imlay Temperature Statistics

March Temperature

Rapid City, Rapid City Regional Airport (39.8 miles)

  • Lowest 16 March, 2026

    -1.4 °F

  • Average March

    39 °F

  • Highest 18 March, 2026

    81 °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

    49.3 °F

  • Average High 2021–2026

    63 °F
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