Mammoth Weather Forecast

    • 56
    • 93

    Increasing Clouds

    • 54
    • 94

    Mostly Sunny

    • 55
    • 92

    Mostly Sunny

    • 56
    • 94

    Mostly Sunny

    • 51
    • 85

    Slight Chance Thunderstorms

    • 50
    • 82

    Mostly Sunny

Today 15 Jun Northeast Siskiyou and Northwest Modoc Counties

Sunny. Highs in the mid 80s to mid 90s. Northwest Winds around 5 Mph shifting to the north this afternoon.

Tonight 15 Jun Northeast Siskiyou and Northwest Modoc Counties

Partly cloudy. Lows in the mid 50s to lower 60s. Northwest Winds 5 to 10 Mph.

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  • 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

    57 °F

  • Highest 12 June, 2026

    84.7 °F

Climate (2021–Present)

Klamath Falls International Airport (34.2 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    63.5 °F
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