Summit Lake Weather Forecast

    • 44
    • 50

    Rain

    • 44
    • 56

    Rain Likely

    • 42
    • 51

    Rain

    • 41
    • 51

    Chance Rain

    • 41
    • 56

    Mostly Cloudy

    • 39
    • 59

    Mostly Cloudy

Today 30 Jan Willapa and Black Hills

A chance of rain in the Morning, then rain in the late morning and early afternoon. A chance of rain late in the afternoon. Rainfall Amounts a quarter to a half inch possible. Highs near 50. South wind 10 to 20 Mph with Gusts to 30 Mph.

Tonight 30 Jan Willapa and Black Hills

Mostly cloudy. A chance of rain in the evening. A slight chance of rain after Midnight, then a chance of rain in the morning. Lows in the 40s. South wind to 10 Mph in the evening becoming Light, Gusts to 20 Mph in the evening.

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Summit Lake Temperature Statistics

January Temperature

Olympia, Olympia Airport (10.6 miles)

  • Lowest 24 January, 2026

    18.6 °F

  • Average January

    40 °F

  • Highest 13 January, 2026

    58.6 °F

Climate (2021–Present)

Olympia, Olympia Airport (10.6 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    62.1 °F
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