Grantfork Weather Forecast

    • 26
    • 33

    Increasing Clouds

    • 22
    • 44

    Partly Sunny

    • 10
    • 36

    Partly Sunny

    • 2
    • 16

    Chance Snow

    • 6
    • 14

    Chance Snow

    • 6
    • 22

    Mostly Sunny

Today 20 Jan Madison

Mostly sunny. Not as cool with Highs in the mid 30s. South Winds 10 to 15 Mph.

Tonight 20 Jan Madison

Partly cloudy in the Evening, then becoming mostly cloudy. Not as cool with Lows in the upper 20s. Temperature rising into the lower 30s after midnight. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Grantfork Temperature Statistics

January Temperature

St. Louis Regional Airport (19.9 miles)

  • Lowest 18 January, 2026

    11.3 °F

  • Average January

    35.9 °F

  • Highest 6 January, 2026

    64.4 °F

Climate (2021–Present)

St. Louis Regional Airport (19.9 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    54.1 °F

  • Average High 2021–2026

    66.3 °F
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