Greenhorn Park Weather Forecast

    • 46
    • 71

    Sunny

    • 52
    • 77

    Sunny

    • 56
    • 82

    Partly Sunny

    • 49
    • 75

    Mostly Sunny

    • 48
    • 75

    Sunny

    • 48
    • 78

    Mostly Sunny

    • 44
    • 69

    Mostly Sunny

Today 31 May Central Siskiyou County

Sunny. Highs in the mid 60s to mid 70s. North Winds 5 to 10 Mph.

Tonight 31 May Central Siskiyou County

Clear. Lows in the lower to mid 40s. North Winds 10 to 15 Mph decreasing to around 5 Mph after Midnight, then shifting to the northeast well after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Greenhorn Park Temperature Statistics

May Temperature

Montague Siskiyou County Airport (10.6 miles)

  • Lowest 14 May, 2026

    34.6 °F

  • Average May

    60.3 °F

  • Highest 12 May, 2026

    89.7 °F

Climate (2021–Present)

Montague Siskiyou County Airport (10.6 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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