Four Mile Creek Weather Forecast

    • 60
    • 76

    Rain Showers Likely

    • 54
    • 80

    Rain Showers Likely

    • 50
    • 77

    Rain Showers Likely

    • 47
    • 73

    Chance Thunderstorms

    • 49
    • 73

    Slight Chance Rain Showers

    • 50
    • 76

    Chance Rain Showers

Today 17 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Chance of Showers and slight chance of Thunderstorms in the Morning, then Showers likely and chance of Thunderstorms in the afternoon. Highs 75 to 81. Chance of rain 60 percent.

Tonight 17 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Chance of Showers and slight chance of Thunderstorms in the evening. Lows 54 to 60. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Four Mile Creek Temperature Statistics

September Temperature

Boulder Municipal Airport (1.2 miles)

  • Lowest 10 September, 2026

    53.6 °F

  • Average September

    73.3 °F

  • Highest 13 September, 2026

    96.8 °F

Climate (2021–2026)

Boulder Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    66.4 °F
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