Madison County Fairgrounds Weather Forecast

    • 41
    • 72

    Increasing Clouds

    • 46
    • 78

    Chance Rain

    • 42
    • 73

    Rain Showers Likely

    • 41
    • 71

    Chance Rain

    • 41
    • 75

    Mostly Sunny

    • 43
    • 77

    Partly Sunny

Today 16 Sep Beaverhead and Western Madison below 6000ft

Sunny. Highs 67 to 73. Northeast Winds up to 10 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 16 Sep Beaverhead and Western Madison below 6000ft

Mostly clear in the evening then becoming mostly cloudy. Lows in the lower 40s. Northeast Winds 5 to 15 Mph with Gusts to around 30 Mph decreasing to up to 5 Mph with Gusts to around 20 Mph after midnight.

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Madison County Fairgrounds Temperature Statistics

September Temperature

Dillon, Dillon Airport (21.7 miles)

  • Lowest 8 September, 2026

    35.7 °F

  • Average September

    59.9 °F

  • Highest 10 September, 2026

    83.6 °F

Climate (2021–2026)

Dillon, Dillon Airport (21.7 miles)

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  • Average Low 2021–2026

    31.6 °F

  • Average 2021–2026

    44 °F

  • Average High 2021–2026

    57 °F
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