Mammoth Weather Forecast

    • 57
    • 88

    Increasing Clouds

    • 53
    • 88

    Chance Rain Showers

    • 53
    • 90

    Mostly Sunny

    • 52
    • 89

    Mostly Sunny

    • 52
    • 90

    Mostly Sunny

    • 55
    • 90

    Partly Sunny

    • 56
    • 90

    Partly Sunny

Today 13 Jul Northeast Siskiyou and Northwest Modoc Counties

Partly cloudy. Highs in the mid 80s to lower 90s. Southwest Winds 5 to 10 Mph.

Tonight 13 Jul Northeast Siskiyou and Northwest Modoc Counties

Mostly cloudy. Lows in the mid 50s to lower 60s. Southwest Winds 5 to 10 Mph shifting to the southeast well after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mammoth Temperature Statistics

July Temperature

Klamath Falls International Airport (34.2 miles)

  • Lowest 1 July, 2026

    32.6 °F

  • Average July

    66.2 °F

  • Highest 10 July, 2026

    89.7 °F

Climate (2021–2026)

Klamath Falls International Airport (34.2 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    63.4 °F
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