Flat Mountain Arm Weather Forecast

    • 2
    • 34

    Increasing Clouds

    • 17
    • 28

    Blizzard

    • 14
    • 31

    Blizzard

    • 17
    • 26

    Snow

    • 20
    • 30

    Snow

    • 11
    • 31

    Snow

    • -3
    • 24

    Snow

Today 30 Jan Yellowstone National Park

Mostly sunny. Highs in the upper 30s. Temperature falling into the mid 20s late. Southwest Winds around 10 Mph.

Tonight 30 Jan Yellowstone National Park

Partly cloudy. Cold with Lows 5 to 13 above. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Mountain Arm Temperature Statistics

January Temperature

Yellowstone Lake (11.2 miles)

  • Lowest 20 January, 2025

    -34.6 °F

  • Average January

    7.4 °F

  • Highest 3 January, 2025

    34 °F

Climate (2020–Present)

Yellowstone Lake (11.2 miles)

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  • Average Low 2020–2025

    21.7 °F

  • Average 2020–2025

    34.4 °F

  • Average High 2020–2025

    47 °F
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