Greenhorn Park Weather Forecast

    • 47
    • 63

    Partly Sunny

    • 41
    • 65

    Becoming Sunny

    • 47
    • 71

    Sunny

    • 54
    • 79

    Mostly Sunny

    • 57
    • 82

    Partly Sunny

    • 51
    • 77

    Mostly Sunny

    • 50
    • 77

    Sunny

Today 29 May Central Siskiyou County

Mostly cloudy with a 40 percent chance of rain until early Afternoon, then partly cloudy late this afternoon. Highs in the lower to mid 60s. North Winds 5 to 10 Mph.

Tonight 29 May Central Siskiyou County

Partly cloudy with a slight chance of rain early this Evening, then mostly cloudy late this evening and overnight. Lows in the lower to mid 40s. North Winds 5 to 10 Mph.

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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

    60.5 °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

    69.3 °F
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