San Isabel National Forest Weather Forecast

    • 39
    • 61

    Chance Thunderstorms

    • 38
    • 59

    Chance Thunderstorms

    • 38
    • 57

    Slight Chance Thunderstorms

    • 41
    • 62

    Mostly Sunny

    • 41
    • 63

    Mostly Sunny

    • 38
    • 62

    Slight Chance Thunderstorms

Today 16 Sep Northwestern Fremont County Above 8500Ft

Mostly sunny until late afternoon then becoming mostly cloudy. A 40 percent chance of Thunderstorms. Highs 57 to 69. West Winds 10 to 15 Mph.

Tonight 16 Sep Northwestern Fremont County Above 8500Ft

Mostly cloudy. Chance of Thunderstorms until Midnight, then slight chance of rain Showers after midnight. Lows near 40. West Winds up to 10 Mph. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Isabel National Forest Temperature Statistics

September Temperature

Harriet Alexander Field Airport (11.2 miles)

  • Lowest 14 September, 2025

    38.5 °F

  • Average September

    58.8 °F

  • Highest 1 September, 2025

    82.6 °F

Climate (2020–Present)

Harriet Alexander Field Airport (11.2 miles)

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  • Average Low 2020–2025

    35 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    61.4 °F
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