Sheridan Weather Forecast

    • 41
    • 70

    Mostly Sunny

    • 43
    • 67

    Decreasing Clouds

    • 46
    • 74

    Partly Sunny

    • 44
    • 72

    Mostly Sunny

    • 47
    • 75

    Mostly Sunny

    • 48
    • 77

    Partly Sunny

    • 45
    • 73

    Mostly Sunny

Today 30 Sep Beaverhead and Western Madison below 6000ft

Sunny. Highs 66 to 72. West Winds 5 to 10 Mph with Gusts to around 25 Mph.

Tonight 30 Sep Beaverhead and Western Madison below 6000ft

Mostly clear. Lows around 40. Northwest Winds up to 10 Mph.

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Sheridan Temperature Statistics

September Temperature

Dillon, Dillon Airport (21.7 miles)

  • Lowest 15 September, 2026

    31.6 °F

  • Average September

    58.1 °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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