Peterson Lake Weather Forecast

    • 51
    • 84

    Mostly Sunny

    • 43
    • 69

    Chance Rain Showers

    • 42
    • 71

    Mostly Sunny

    • 46
    • 76

    Mostly Sunny

    • 49
    • 80

    Mostly Sunny

    • 51
    • 83

    Mostly Sunny

Today 2 May Upper Columbia Basin

Sunny. Highs in the lower to mid 80s. East wind 5 to 10 Mph.

Tonight 2 May Upper Columbia Basin

Partly cloudy with a 20 percent chance of rain Showers. Lows in the lower to mid 50s. South wind 5 to 10 Mph. Gusts up to 25 Mph overnight.

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Peterson Lake Temperature Statistics

May Temperature

Grant County Airport (22.4 miles)

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Climate (2020–Present)

Grant County Airport (22.4 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    64.1 °F
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