Yellowstone Lake Weather Forecast

    • 32
    • 44

    Rain Showers

    • 34
    • 52

    Increasing Clouds

    • 36
    • 55

    Mostly Sunny

    • 38
    • 59

    Mostly Sunny

    • 37
    • 59

    Chance Rain Showers

    • 38
    • 59

    Mostly Sunny

    • 40
    • 62

    Mostly Sunny

Today 31 May Yellowstone National Park

Rain Showers with possible Thunderstorms and snow Showers. Little or no snow accumulation. Highs in the mid 40s. West Winds around 10 Mph with Gusts up to 30 Mph. Chance of precipitation 80 percent.

Tonight 31 May Yellowstone National Park

Mostly cloudy with rain Showers likely with possible snow Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Areas of fog after midnight. Snow accumulation up to 1 inch. Lows around 30. West Winds around 10 Mph with Gusts up to 30 Mph in the evening. Chance of precipitation 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Yellowstone Lake Temperature Statistics

May Temperature

Yellowstone Lake (4.3 miles)

  • Lowest 6 May, 2026

    16.6 °F

  • Average May

    41.5 °F

  • Highest 13 May, 2026

    72.6 °F

Climate (2021–Present)

Yellowstone Lake (4.3 miles)

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  • Average Low 2021–2026

    23.1 °F

  • Average 2021–2026

    35.9 °F

  • Average High 2021–2026

    48.8 °F
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