Heart Lake Weather Forecast

    • 13
    • 28

    Partly Sunny

    • 15
    • 29

    Partly Sunny

    • 19
    • 29

    Mostly Cloudy

    • 21
    • 32

    Mostly Cloudy

    • 18
    • 35

    Mostly Sunny

    • 16
    • 31

    Mostly Sunny

Today 10 Jan Boise Mountains

Areas of fog this morning. Mostly sunny. Highs 31 to 40.

Tonight 10 Jan Boise Mountains

Partly cloudy. Patchy fog after midnight. Lows 14 to 27.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Heart Lake Temperature Statistics

January Temperature

Boise Air Terminal (41 miles)

  • Lowest 8 January, 2026

    27 °F

  • Average January

    40.5 °F

  • Highest 3 January, 2026

    57.9 °F

Climate (2021–Present)

Boise Air Terminal (41 miles)

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

  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    66 °F
Get WillyWeather+ to remove ads