Heart Lake Weather Forecast

    • 31
    • 41

    Mostly Cloudy

    • 34
    • 41

    Chance Rain/Snow

    • 22
    • 39

    Chance Snow

    • 17
    • 30

    Mostly Sunny

    • 25
    • 40

    Partly Sunny

    • 29
    • 46

    Partly Sunny

Today 23 Mar Western Lemhi County

Mostly cloudy. Highs in the mid 50s to lower 60s.

Tonight 23 Mar Western Lemhi County

Mostly cloudy. Lows in the upper 30s to mid 40s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Heart Lake Temperature Statistics

March Temperature

Salmon, Lemhi County Airport (34.2 miles)

  • Lowest 11 March, 2026

    19 °F

  • Average March

    42.1 °F

  • Highest 20 March, 2026

    78.1 °F

Climate (2021–Present)

Salmon, Lemhi County Airport (34.2 miles)

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

  • Average Low 2021–2026

    33 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    59 °F
Get WillyWeather+ to remove ads