Potosi Weather Forecast

    • 53
    • 60

    Rain Showers Likely

    • 60
    • 72

    Mostly Cloudy

    • 58
    • 76

    Rain Showers

    • 45
    • 68

    Chance Rain Showers

    • 41
    • 60

    Mostly Sunny

    • 45
    • 66

    Mostly Sunny

Today 15 Oct Grant

Cloudy. Showers likely this Morning, then a chance of Showers this afternoon. Highs in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 15 Oct Grant

Cloudy with a 20 percent chance of Showers. Lows in the lower 50s. East Winds 5 to 10 Mph.

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Potosi Temperature Statistics

October Temperature

Platteville Municipal Airport (13.7 miles)

  • Lowest 8 October, 2025

    39.7 °F

  • Average October

    62.6 °F

  • Highest 3 October, 2025

    88 °F

Climate (2020–Present)

Platteville Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    40.8 °F

  • Average 2020–2025

    49.9 °F

  • Average High 2020–2025

    58.7 °F
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