Winchester Weather Forecast

    • 49
    • 80

    Mostly Sunny

    • 48
    • 71

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

    • 55
    • 81

    Partly Sunny

    • 49
    • 78

    Mostly Sunny

    • 48
    • 74

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

Today 16 Jun Lewis and Southern Nez Perce Counties

Sunny. Highs in the lower 80s to lower 90s. Windy. West wind 15 to 25 Mph with Gusts up to 45 Mph.

Tonight 16 Jun Lewis and Southern Nez Perce Counties

Mostly clear. Lows in the upper 40s to mid 50s. Windy. West wind 15 to 25 Mph with Gusts up to 45 Mph decreasing to 5 to 15 Mph with Gusts up to 30 Mph overnight.

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Winchester Temperature Statistics

June Temperature

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

  • Lowest 8 June, 2026

    45.6 °F

  • Average June

    64.6 °F

  • Highest 14 June, 2026

    84.9 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    66.1 °F
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