Cup Lake Weather Forecast

    • 45
    • 52

    Rain Showers

    • 45
    • 53

    Chance Rain Showers

    • 47
    • 60

    Mostly Sunny

    • 45
    • 59

    Mostly Sunny

    • 43
    • 55

    Mostly Sunny

    • 43
    • 56

    Mostly Sunny

    • 44
    • 58

    Mostly Sunny

Today 21 Jul Western Chelan County

Rain Showers and a chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Highs in the lower 70s to lower 80s. Chance of precipitation 90 percent. Rainfall Amounts up to a half inch Possible, except higher Amounts possible in Thunderstorms.

Tonight 21 Jul Western Chelan County

Mostly cloudy. Rain Showers likely and a chance of Thunderstorms in the Evening, then a chance of rain Showers overnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the mid 50s to mid 60s. Chance of precipitation 70 percent. Rainfall Amounts less than a quarter of an Inch, except higher Amounts possible in Thunderstorms.

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Cup Lake Temperature Statistics

July Temperature

Stampede Pass (35.4 miles)

  • Lowest 3 July, 2025

    44.1 °F

  • Average July

    58.5 °F

  • Highest 1 July, 2025

    78.1 °F

Climate (2020–Present)

Stampede Pass (35.4 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    41.5 °F

  • Average High 2020–2025

    48.4 °F
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