Madison County Fairgrounds Weather Forecast

    • 57
    • 86

    Slight Chance Thunderstorms

    • 56
    • 88

    Rain Showers Likely

    • 58
    • 88

    Slight Chance Thunderstorms

    • 58
    • 96

    Mostly Sunny

    • 57
    • 94

    Mostly Sunny

    • 54
    • 91

    Mostly Sunny

    • 55
    • 90

    Mostly Sunny

Today 21 Jul Beaverhead and Western Madison below 6000ft

Partly sunny. Slight chance of Thunderstorms early in the Afternoon, then chance of rain Showers and slight chance of Thunderstorms late in the afternoon. Patchy smoke through the day. Highs 80 to 86. North Winds up to 10 Mph. Chance of precipitation 50 percent.

Tonight 21 Jul Beaverhead and Western Madison below 6000ft

Mostly cloudy until early morning then becoming partly cloudy. Chance of rain Showers and slight chance of Thunderstorms early in the Evening, then chance of rain Showers late in the evening. Patchy smoke through the night. Lows in the upper 50s. North Winds up to 10 Mph. Chance of precipitation 50 percent.

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Madison County Fairgrounds Temperature Statistics

July Temperature

Dillon, Dillon Airport (21.7 miles)

  • Lowest 1 July, 2026

    44.7 °F

  • Average July

    68.7 °F

  • Highest 12 July, 2026

    98.1 °F

Climate (2021–2026)

Dillon, Dillon Airport (21.7 miles)

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  • Average Low 2021–2026

    31.5 °F

  • Average 2021–2026

    43.9 °F

  • Average High 2021–2026

    56.9 °F
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