Grantfork Weather Forecast

    • 40
    • 63

    Mostly Sunny

    • 37
    • 63

    Sunny

    • 37
    • 63

    Mostly Sunny

    • 46
    • 60

    Chance Rain

    • 49
    • 60

    Chance Rain

    • 51
    • 66

    Slight Chance Rain Showers

Today 21 Oct Madison

Sunny. Highs in the mid 60s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 21 Oct Madison

Clear. Lows in the lower 40s. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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Grantfork Temperature Statistics

October Temperature

St. Louis Regional Airport (19.9 miles)

  • Lowest 10 October, 2025

    43 °F

  • Average October

    63 °F

  • Highest 1 October, 2025

    87.8 °F

Climate (2020–Present)

St. Louis Regional Airport (19.9 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    66.2 °F
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