Grinnell Weather Forecast

    • 29
    • 46

    Slight Chance Rain

    • 29
    • 58

    Mostly Sunny

    • 33
    • 61

    Partly Sunny

    • 27
    • 62

    Partly Sunny

    • 21
    • 54

    Partly Sunny

    • 23
    • 46

    Mostly Cloudy

    • 16
    • 45

    Mostly Cloudy

Today 30 Jan Gove

Patchy dense fog late this morning. Mostly cloudy. Highs in the mid 40s. South Winds around 5 Mph, becoming northeast this afternoon.

Tonight 30 Jan Gove

Mostly Cloudy, then becoming partly cloudy after Midnight, then becoming clear. Slight chance of rain in the evening. Slight chance of snow. Lows in the upper 20s. Northwest Winds 10 to 20 Mph. Chance of precipitation 20 percent.

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Grinnell Temperature Statistics

January Temperature

Hill City, Hill City Municipal Airport (46 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 (46 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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