Olson Lake Weather Forecast

    • 71
    • 89

    Chance Thunderstorms

    • 64
    • 79

    Rain Showers Likely

    • 63
    • 80

    Mostly Sunny

    • 68
    • 83

    Slight Chance Thunderstorms

    • 70
    • 87

    Slight Chance Thunderstorms

    • 70
    • 89

    Chance Thunderstorms

    • 66
    • 86

    Slight Chance Thunderstorms

Today 22 Jul Big Stone

Partly sunny with a 20 percent chance of Thunderstorms. Near steady temperature in the mid 80s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 22 Jul Big Stone

Partly sunny Early, then mostly cloudy with a chance of Thunderstorms. Humid with Lows in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 102 early this evening.

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Olson Lake Temperature Statistics

July Temperature

Ortonville, Ortonville Muncipal-Martinson Field Airport (6.8 miles)

  • Lowest 17 July, 2025

    53.6 °F

  • Average July

    71.7 °F

  • Highest 3 July, 2025

    89.6 °F

Climate (2020–Present)

Ortonville, Ortonville Muncipal-Martinson Field Airport (6.8 miles)

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  • Average Low 2020–2025

    35.7 °F

  • Average 2020–2025

    45.2 °F

  • Average High 2020–2025

    54.9 °F
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