Yellowstone Weather Forecast

    • 61
    • 74

    Rain Showers Likely

    • 62
    • 68

    Rain Showers

    • 50
    • 68

    Rain Showers

    • 43
    • 64

    Mostly Sunny

    • 46
    • 65

    Partly Sunny

    • 42
    • 64

    Mostly Sunny

Today 29 Sep Lafayette

Sunny in the morning then becoming mostly cloudy. Highs in the lower 70s. South Winds up to 10 Mph.

Tonight 29 Sep Lafayette

Warmer, cloudy. Chance of light Showers until early Morning, then light Showers likely early in the morning. Lows in the lower 60s. South Winds 5 to 10 Mph. Chance of Showers 70 percent.

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Yellowstone Temperature Statistics

September Temperature

Iowa County Airport (14.3 miles)

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  • Average September

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Climate (2021–2026)

Iowa County Airport (14.3 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    58.8 °F
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