Mount Thielsen Weather Forecast

    • 51
    • 64

    Slight Chance Thunderstorms

    • 49
    • 63

    Chance Rain Showers

    • 45
    • 59

    Mostly Sunny

    • 45
    • 57

    Mostly Sunny

    • 49
    • 63

    Mostly Sunny

    • 47
    • 59

    Chance Rain Showers

Today 18 Sep South Central Oregon Cascades

Sunny. Highs in the lower 70s to lower 80s. Northeast Winds around 5 Mph shifting to the northwest late in the afternoon.

Tonight 18 Sep South Central Oregon Cascades

Partly cloudy. A 10 percent chance of Thunderstorms in the evening. Lows in the lower to mid 50s. Northwest Winds 5 to 10 Mph shifting to the northeast after midnight.

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Mount Thielsen Temperature Statistics

September Temperature

Roseburg Regional Airport (65.2 miles)

  • Lowest 15 September, 2025

    51.1 °F

  • Average September

    68.8 °F

  • Highest 4 September, 2025

    95 °F

Climate (2020–Present)

Roseburg Regional Airport (65.2 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    67.9 °F
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