Winchester Weather Forecast

    • 45
    • 68

    Increasing Clouds

    • 48
    • 72

    Mostly Cloudy

    • 46
    • 72

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

    • 48
    • 70

    Sunny

    • 48
    • 74

    Mostly Sunny

Today 1 May Lewis and Southern Nez Perce Counties

Sunny. Highs in the upper 60s to mid 70s.

Tonight 1 May Lewis and Southern Nez Perce Counties

Partly cloudy. Lows in the mid 40s to lower 50s.

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Winchester Temperature Statistics

May Temperature

Lewiston, Lewiston-Nez Perce County Airport (20.5 miles)

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Climate (2021–Present)

Lewiston, Lewiston-Nez Perce County Airport (20.5 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    66.1 °F
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