Upper Klamath Lake Weather Forecast

    • 41
    • 60

    Sunny

    • 44
    • 64

    Mostly Sunny

    • 48
    • 69

    Partly Sunny

    • 48
    • 67

    Slight Chance Thunderstorms

    • 48
    • 67

    Rain Showers Likely

    • 45
    • 55

    Rain Likely

    • 45
    • 59

    Chance Rain

Today 29 Apr Klamath Basin

Sunny. Highs in the lower to mid 60s. North Winds around 5 Mph shifting to the northwest this afternoon.

Tonight 29 Apr Klamath Basin

Clear. Lows in the mid 30s to lower 40s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Klamath Lake Temperature Statistics

April Temperature

Klamath Falls International Airport (19.3 miles)

  • Lowest 17 April, 2026

    14.6 °F

  • Average April

    44.4 °F

  • Highest 5 April, 2026

    71.7 °F

Climate (2021–Present)

Klamath Falls International Airport (19.3 miles)

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  • Average Low 2021–2026

    34.1 °F

  • Average 2021–2026

    48.9 °F

  • Average High 2021–2026

    63.5 °F
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