Walnut Weather Forecast

    • 25
    • 35

    Mostly Sunny

    • 7
    • 39

    Breezy

    • 11
    • 21

    Partly Sunny

    • 24
    • 38

    Mostly Sunny

    • 28
    • 47

    Mostly Sunny

    • 28
    • 51

    Mostly Cloudy

Today 3 Dec Pottawattamie

Sunny. Not as cool with Highs in the upper 30s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 3 Dec Pottawattamie

Mostly clear and not as cool. Near steady temperature in the upper 20s. South Winds 10 to 15 Mph, becoming west 5 to 10 Mph after midnight.

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Walnut Temperature Statistics

December Temperature

Harlan, Harlan Municipal Airport (9.3 miles)

  • Lowest 1 December, 2024

    8.6 °F

  • Average December

    19.9 °F

  • Highest 1 December, 2024

    26.6 °F

Climate (2019–Present)

Harlan, Harlan Municipal Airport (9.3 miles)

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  • Average Low 2019–2024

    38.8 °F

  • Average 2019–2024

    50.1 °F

  • Average High 2019–2024

    61.3 °F
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