Lower Arapahoe Weather Forecast

    • 39
    • 58

    Chance Rain Showers

    • 40
    • 62

    Rain Showers

    • 37
    • 72

    Chance Rain/Snow

    • 31
    • 53

    Chance Rain/Snow

    • 35
    • 60

    Chance Rain Showers

    • 38
    • 67

    Partly Sunny

Today 31 Mar Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Slight chance of Showers in the afternoon. Highs 52 to 62. Northeast Winds 10 to 15 Mph, becoming southeast in the afternoon. Chance of rain 20 percent.

Tonight 31 Mar Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy with a chance of rain Showers. Slight chance of snow Showers after midnight. Lows 34 to 40. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 40 percent.

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Lower Arapahoe Temperature Statistics

March Temperature

Boulder Municipal Airport (3.7 miles)

  • Lowest 16 March, 2026

    21.2 °F

  • Average March

    54.8 °F

  • Highest 21 March, 2026

    89.6 °F

Climate (2021–Present)

Boulder Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    41.1 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    66 °F
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