Yellowstone Lake Weather Forecast

    • 69
    • 86

    Rain Showers

    • 62
    • 81

    Partly Sunny

    • 64
    • 83

    Partly Sunny

    • 66
    • 86

    Chance Thunderstorms

    • 64
    • 84

    Chance Rain Showers

    • 65
    • 85

    Slight Chance Thunderstorms

    • 65
    • 85

    Chance Thunderstorms

Today 5 Jul Lafayette

Showers and Thunderstorms likely. Locally heavy rainfall possible. Southwest Winds around 15 Mph with Gusts to around 30 Mph. Chance of precipitation 70 percent.

Tonight 5 Jul Lafayette

Mostly cloudy. Showers likely and chance of Thunderstorms through around Midnight, then chance of light Showers after midnight. Lows in the upper 60s. Southwest Winds 5 to 15 Mph. Chance of precipitation 70 percent.

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Yellowstone Lake Temperature Statistics

July Temperature

Iowa County Airport (15.5 miles)

  • Lowest 1 July, 2025

    60.8 °F

  • Average July

    73.9 °F

  • Highest 3 July, 2025

    87.8 °F

Climate (2020–Present)

Iowa County Airport (15.5 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    58.8 °F
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