Grinnell Regional Airport Weather Forecast

    • 23
    • 30

    Snow

    • 15
    • 32

    Snow

    • 2
    • 19

    Mostly Cloudy

    • 7
    • 16

    Slight Chance Snow

    • 15
    • 24

    Mostly Cloudy

    • 5
    • 29

    Mostly Cloudy

Today 28 Nov Poweshiek

Mostly Sunny, then becoming mostly sunny this Morning, then becoming mostly cloudy. A chance of snow this afternoon. Highs in the lower 30s. Northwest Winds around 5 Mph, becoming south this afternoon. Chance of snow 40 percent.

Tonight 28 Nov Poweshiek

Snow. Snow may be heavy at Times after midnight. Snow accumulation of 4 to 6 Inches. Near steady temperature in the mid 20s. East Winds 10 to 15 Mph. Chance of snow near 100 percent.

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Grinnell Regional Airport Temperature Statistics

November Temperature

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

  • Lowest 10 November, 2025

    21.2 °F

  • Average November

    44.6 °F

  • Highest 14 November, 2025

    75.2 °F

Climate (2020–Present)

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

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  • Average Low 2020–2025

    41.6 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    61.2 °F
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