Roosevelt National Forest Weather Forecast

    • 45
    • 60

    Mostly Sunny

    • 49
    • 68

    Partly Sunny

    • 49
    • 67

    Chance Rain Showers

    • 48
    • 66

    Chance Thunderstorms

    • 41
    • 60

    Chance Rain Showers

    • 43
    • 62

    Mostly Sunny

    • 45
    • 65

    Mostly Sunny

Today 18 Sep Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny. Highs 58 to 68.

Tonight 18 Sep Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 38 to 48.

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Roosevelt National Forest Temperature Statistics

September Temperature

Fort Collins/Loveland - Northern Colorado Regional Airport (28 miles)

  • Lowest 6 September, 2025

    46 °F

  • Average September

    67.6 °F

  • Highest 10 September, 2025

    91.9 °F

Climate (2020–Present)

Fort Collins/Loveland - Northern Colorado Regional Airport (28 miles)

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  • Average Low 2020–2025

    37.7 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    65 °F
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