Lapham Reservoir Weather Forecast

    • 50
    • 78

    Mostly Sunny

    • 53
    • 79

    Mostly Cloudy

    • 50
    • 74

    Mostly Cloudy

    • 48
    • 72

    Partly Sunny

    • 47
    • 72

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 49
    • 75

    Chance Rain Showers

Today 17 Sep Northern and Eastern Klamath County and Western Lake County

Sunny. Highs in the mid 70s to mid 80s. South Winds around 5 Mph shifting to the southwest late this afternoon.

Tonight 17 Sep Northern and Eastern Klamath County and Western Lake County

Mostly clear. Lows in the lower 40s to lower 50s. West Winds 5 to 10 Mph shifting to the north late this evening and overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lapham Reservoir Temperature Statistics

September Temperature

Lake County Airport (23.6 miles)

  • Lowest 15 September, 2025

    37.9 °F

  • Average September

    62.6 °F

  • Highest 2 September, 2025

    91.9 °F

Climate (2020–Present)

Lake County Airport (23.6 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    61.2 °F
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