Walnut Weather Forecast

    • 70
    • 96

    Chance Thunderstorms

    • 60
    • 84

    Mostly Sunny

    • 59
    • 78

    Chance Rain Showers

    • 60
    • 77

    Chance Thunderstorms

    • 62
    • 75

    Partly Sunny

    • 68
    • 86

    Mostly Sunny

    • 71
    • 94

    Mostly Sunny

Today 20 Jul Pottawattamie

Sunny. Near steady temperature in the mid 90s. Southwest Winds around 10 Mph. Heat index Values up to 110.

Tonight 20 Jul Pottawattamie

Partly cloudy. A slight chance of Showers and Thunderstorms this Evening, then a chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. Southwest Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Walnut Temperature Statistics

July Temperature

Harlan, Harlan Municipal Airport (9.3 miles)

  • Lowest 12 July, 2026

    59 °F

  • Average July

    76.6 °F

  • Highest 18 July, 2026

    91.4 °F

Climate (2021–2026)

Harlan, Harlan Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    61.9 °F
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