Grant Weather Forecast

    • 42
    • 74

    Slight Chance Rain Showers

    • 46
    • 72

    Chance Rain Showers

    • 40
    • 67

    Mostly Sunny

    • 41
    • 68

    Mostly Sunny

    • 40
    • 67

    Chance Rain Showers

    • 34
    • 64

    Chance Thunderstorms

    • 31
    • 53

    Snow Showers Likely

Today 12 May Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below

Partly cloudy. Slight chance of Showers early in the Afternoon, then a slight chance of Thunderstorms late in the afternoon. Highs 71 to 81. Chance of rain 20 percent.

Tonight 12 May Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below

Mostly clear. Lows 43 to 53.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Temperature Statistics

May Temperature

Copper Mountain - Red Cliff Pass (26.1 miles)

  • Lowest 6 May, 2026

    14 °F

  • Average May

    29 °F

  • Highest 8 May, 2026

    42.8 °F

Climate (2021–Present)

Copper Mountain - Red Cliff Pass (26.1 miles)

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  • Average Low 2021–2026

    30 °F

  • Average 2021–2026

    36.4 °F

  • Average High 2021–2026

    42.7 °F
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