Mammoth Weather Forecast

    • 43
    • 73

    Decreasing Clouds

    • 41
    • 76

    Mostly Sunny

    • 43
    • 76

    Mostly Sunny

    • 46
    • 79

    Partly Sunny

    • 47
    • 81

    Mostly Sunny

    • 51
    • 88

    Mostly Sunny

Today 29 Jun Northeast Siskiyou and Northwest Modoc Counties

Partly cloudy early this morning then becoming mostly cloudy. Areas of frost early this morning. Highs in the lower to mid 70s. Southwest Winds around 5 Mph shifting to the northwest 10 to 15 Mph in the late morning and afternoon.

Tonight 29 Jun Northeast Siskiyou and Northwest Modoc Counties

Mostly clear. Lows around 40. West Winds 10 to 15 Mph decreasing to around 5 Mph well after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mammoth Temperature Statistics

June Temperature

Klamath Falls International Airport (34.2 miles)

  • Lowest 7 June, 2026

    28.7 °F

  • Average June

    61.6 °F

  • Highest 16 June, 2026

    91.7 °F

Climate (2021–2026)

Klamath Falls International Airport (34.2 miles)

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

  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    63.5 °F
Get WillyWeather+ to remove ads