Winchester Lake Weather Forecast

    • 35
    • 49

    Increasing Clouds

    • 31
    • 46

    Chance Rain Showers

    • 36
    • 48

    Mostly Cloudy

    • 40
    • 58

    Partly Sunny

    • 36
    • 54

    Mostly Cloudy

    • 36
    • 51

    Mostly Cloudy

Today 4 Nov Lewis and Southern Nez Perce Counties

Sunny. Highs in the upper 40s to mid 50s.

Tonight 4 Nov Lewis and Southern Nez Perce Counties

Mostly cloudy. Lows in the mid 30s to lower 40s.

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  • Temperature Real-Time

Winchester Lake Temperature Statistics

November Temperature

Grangeville - Idaho County Airport (30.4 miles)

  • Lowest 2 November, 2026

    32.4 °F

  • Average November

    40.2 °F

  • Highest 2 November, 2026

    47.5 °F

Climate (2021–2026)

Grangeville - Idaho County Airport (30.4 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    57.9 °F
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