Southeast Arm Weather Forecast

    • 19
    • 34

    Partly Sunny

    • 22
    • 32

    Mostly Cloudy

    • 16
    • 38

    Mostly Sunny

    • 11
    • 35

    Partly Sunny

    • 13
    • 30

    Partly Sunny

    • 16
    • 33

    Mostly Sunny

Today 12 Jan Yellowstone National Park

Partly cloudy. Highs in the lower 30s. Temperature falling into the lower 20s late. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 12 Jan Yellowstone National Park

Partly cloudy. Cold with Lows 11 to 17. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Southeast Arm Temperature Statistics

January Temperature

Yellowstone Lake (15.5 miles)

  • Lowest 9 January, 2026

    -4 °F

  • Average January

    22.5 °F

  • Highest 3 January, 2026

    35.1 °F

Climate (2021–Present)

Yellowstone Lake (15.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    22.9 °F

  • Average 2021–2026

    35.7 °F

  • Average High 2021–2026

    48.4 °F
Get WillyWeather+ to remove ads