Roosevelt National Forest Weather Forecast

    • 58
    • 77

    Slight Chance Thunderstorms

    • 55
    • 74

    Slight Chance Thunderstorms

    • 53
    • 72

    Partly Sunny

    • 54
    • 72

    Partly Sunny

    • 55
    • 75

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

Today 6 Sep Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Slight chance of Thunderstorms in the afternoon. Highs 76 to 86. Chance of precipitation 20 percent.

Tonight 6 Sep Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy. Slight chance of Thunderstorms in the evening. Lows 53 to 63. Chance of precipitation 10 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Roosevelt National Forest Temperature Statistics

September Temperature

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

  • Lowest 2 September, 2026

    55 °F

  • Average September

    74.8 °F

  • Highest 4 September, 2026

    96.1 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    66.3 °F
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