Highline Lake State Park Weather Forecast

    • 53
    • 79

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 53
    • 85

    Mostly Sunny

    • 52
    • 84

    Sunny

    • 55
    • 85

    Mostly Sunny

    • 56
    • 84

    Chance Rain Showers

Today 14 Sep Grand Valley

Sunny. Highs in the 70s.

Tonight 14 Sep Grand Valley

Mostly clear. Lows in the 50s. Southeast Winds 10 to 15 Mph after midnight.

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Highline Lake State Park Temperature Statistics

September Temperature

Grand Junction Regional Airport (18.6 miles)

  • Lowest 7 September, 2025

    57 °F

  • Average September

    74.4 °F

  • Highest 2 September, 2025

    93 °F

Climate (2020–Present)

Grand Junction Regional Airport (18.6 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    68.4 °F
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