Round Mountain Airport Weather Forecast

    • 44
    • 61

    Chance Rain Showers

    • 45
    • 63

    Partly Sunny

    • 47
    • 70

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

    • 48
    • 71

    Mostly Sunny

    • 50
    • 72

    Partly Sunny

Today 27 Jun Central Siskiyou County

Partly cloudy. Slight chance of Showers in the morning. Highs in the lower 60s to lower 70s. Northwest Winds 15 to 20 Mph.

Tonight 27 Jun Central Siskiyou County

Partly cloudy. A 10 percent chance of Showers in the evening. Lows in the mid 40s. North Winds 10 to 20 Mph with Gusts to around 35 Mph decreasing to around 5 Mph well after midnight.

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Round Mountain Airport Temperature Statistics

June Temperature

Montague Siskiyou County Airport (20.5 miles)

  • Lowest 1 June, 2026

    38.6 °F

  • Average June

    68.3 °F

  • Highest 15 June, 2026

    98.7 °F

Climate (2021–2026)

Montague Siskiyou County Airport (20.5 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    69.2 °F
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