Yellowstone Weather Forecast

    • 61
    • 80

    Mostly Cloudy

    • 67
    • 83

    Rain Showers

    • 56
    • 80

    Chance Rain Showers

    • 54
    • 77

    Mostly Sunny

    • 62
    • 80

    Chance Thunderstorms

    • 58
    • 80

    Chance Rain Showers

    • 58
    • 76

    Chance Rain Showers

Today 7 Sep Lafayette

Partly sunny. Southeast Winds 5 to 10 Mph.

Tonight 7 Sep Lafayette

Mostly cloudy. Lows in the lower 60s. Southeast Winds 5 to 10 Mph.

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Yellowstone Temperature Statistics

September Temperature

Iowa County Airport (14.3 miles)

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Climate (2021–2026)

Iowa County Airport (14.3 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    59.1 °F
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