Granby Weather Forecast

    • 36
    • 63

    Chance Thunderstorms

    • 31
    • 57

    Chance Rain Showers

    • 30
    • 67

    Mostly Sunny

    • 32
    • 69

    Mostly Sunny

    • 32
    • 71

    Mostly Sunny

    • 34
    • 72

    Mostly Sunny

    • 34
    • 69

    Partly Sunny

Today 29 Sep Grand and Summit Counties Below 9000 Feet

Mostly cloudy with a 20 percent chance of Thunderstorms. Highs near 60.

Tonight 29 Sep Grand and Summit Counties Below 9000 Feet

Mostly cloudy. Slight chance of rain Showers towards Sunrise. Lows 34 to 42. Chance of rain 10 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Granby Temperature Statistics

September Temperature

Kremmling, Mc Elroy Airfield (22.4 miles)

  • Lowest 10 September, 2026

    32 °F

  • Average September

    56.7 °F

  • Highest 5 September, 2026

    84.2 °F

Climate (2021–2026)

Kremmling, Mc Elroy Airfield (22.4 miles)

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  • Average Low 2021–2026

    24.7 °F

  • Average 2021–2026

    40 °F

  • Average High 2021–2026

    56.1 °F
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