Lewiston Weather Forecast

    • 60
    • 94

    Slight Chance Thunderstorms

    • 59
    • 95

    Slight Chance Thunderstorms

    • 58
    • 94

    Slight Chance Thunderstorms

    • 59
    • 97

    Hot

    • 60
    • 99

    Hot

    • 60
    • 100

    Hot

Today 27 Jul Cache Valley/Utah Portion

Mostly cloudy. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the upper 90s.

Tonight 27 Jul Cache Valley/Utah Portion

A 10 percent chance of Showers and Thunderstorms in the evening. Partly cloudy. Lows in the lower 60s.

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Lewiston Temperature Statistics

July Temperature

Logan-Cache Airport (13 miles)

  • Lowest 1 July, 2026

    46 °F

  • Average July

    78.3 °F

  • Highest 12 July, 2026

    105.1 °F

Climate (2021–2026)

Logan-Cache Airport (13 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    48.9 °F

  • Average High 2021–2026

    62 °F
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