Steamboat Lake Weather Forecast

    • 43
    • 77

    Increasing Clouds

    • 44
    • 80

    Increasing Clouds

    • 48
    • 85

    Mostly Sunny

    • 50
    • 86

    Sunny

    • 50
    • 87

    Mostly Sunny

    • 48
    • 86

    Mostly Sunny

    • 42
    • 80

    Breezy

Today 19 May Central Siskiyou County

Sunny. Highs in the lower 70s to lower 80s. North Winds 5 to 10 Mph.

Tonight 19 May Central Siskiyou County

Mostly clear this evening then becoming partly cloudy. Lows in the mid 40s. 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

    60.7 °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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