Diamond Lake Weather Forecast

    • 30
    • 42

    Decreasing Clouds

    • 29
    • 47

    Mostly Sunny

    • 32
    • 45

    Chance Rain

    • 32
    • 40

    Rain Likely

    • 29
    • 41

    Rain/Snow Likely

    • 28
    • 38

    Snow Likely

Today 29 Dec South Central Oregon Cascades

Partly cloudy. Highs in the lower to mid 40s. East Winds 5 to 10 Mph.

Tonight 29 Dec South Central Oregon Cascades

Partly cloudy in the evening then clearing. Lows in the mid 20s to mid 30s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Lake Temperature Statistics

December Temperature

Roseburg Regional Airport (60.9 miles)

  • Lowest 20 December, 2025

    33.1 °F

  • Average December

    47.2 °F

  • Highest 10 December, 2025

    66 °F

Climate (2020–Present)

Roseburg Regional Airport (60.9 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    67.9 °F
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