Steamboat Lake Weather Forecast

    • 45
    • 80

    Increasing Clouds

    • 49
    • 85

    Mostly Sunny

    • 52
    • 87

    Sunny

    • 51
    • 87

    Mostly Sunny

    • 50
    • 86

    Mostly Sunny

    • 40
    • 81

    Breezy

    • 39
    • 69

    Mostly Sunny

Today 20 May Central Siskiyou County

Sunny. Highs in the lower 70s to lower 80s. North Winds around 5 Mph increasing to 10 to 15 Mph late this afternoon.

Tonight 20 May Central Siskiyou County

Partly cloudy this evening then becoming mostly clear. Lows in the mid 40s to lower 50s. North Winds 10 to 15 Mph decreasing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Steamboat Lake Temperature Statistics

May Temperature

Montague Siskiyou County Airport (5 miles)

  • Lowest 14 May, 2026

    34.6 °F

  • Average May

    60.4 °F

  • Highest 12 May, 2026

    89.7 °F

Climate (2021–Present)

Montague Siskiyou County Airport (5 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    69.2 °F
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