Walnut Weather Forecast

    • 33
    • 54

    Mostly Sunny

    • 34
    • 60

    Mostly Sunny

    • 51
    • 72

    Partly Sunny

    • 53
    • 80

    Mostly Sunny

    • 60
    • 81

    Chance Rain Showers

    • 45
    • 77

    Rain Showers Likely

Today 18 Apr Pottawattamie

Sunny, breezy and much cooler with Highs in the mid 50s. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph.

Tonight 18 Apr Pottawattamie

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming southwest around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Walnut Temperature Statistics

April Temperature

Harlan, Harlan Municipal Airport (9.3 miles)

  • Lowest 7 April, 2026

    28.4 °F

  • Average April

    47.8 °F

  • Highest 13 April, 2026

    84.2 °F

Climate (2021–Present)

Harlan, Harlan Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.9 °F
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