Grassy Mountain Weather Forecast

    • 32
    • 53

    Mostly Sunny

    • 36
    • 54

    Partly Sunny

    • 39
    • 50

    Rain/Snow Likely

    • 37
    • 48

    Chance Thunderstorms

    • 39
    • 51

    Rain/Snow Likely

    • 39
    • 47

    Rain/Snow

Today 20 Sep Northwestern San Juan Mountains

Sunny. Highs 55 to 65. West Winds 10 to 15 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 20 Sep Northwestern San Juan Mountains

Mostly clear. Lows 25 to 35.

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  • Temperature Real-Time

Grassy Mountain Temperature Statistics

September Temperature

Telluride, Telluride Regional Airport (30.4 miles)

  • Lowest 10 September, 2026

    42.8 °F

  • Average September

    57.8 °F

  • Highest 8 September, 2026

    73.4 °F

Climate (2021–2026)

Telluride, Telluride Regional Airport (30.4 miles)

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  • Average Low 2021–2026

    34.2 °F

  • Average 2021–2026

    43.7 °F

  • Average High 2021–2026

    53.6 °F
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