Lafayette Weather Forecast

    • 56
    • 79

    Rain Showers Likely

    • 51
    • 69

    Rain Showers Likely

    • 53
    • 76

    Slight Chance Thunderstorms

    • 53
    • 83

    Partly Sunny

    • 55
    • 83

    Mostly Cloudy

    • 52
    • 79

    Chance Rain Showers

Today 23 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Slight chance of Showers in the Morning, then a chance of Showers and slight chance of Thunderstorms in the afternoon. Highs in the mid 70s to lower 80s. Chance of rain 40 percent.

Tonight 23 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Slight chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Lows in the 50s. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lafayette Temperature Statistics

September Temperature

Erie Municipal Airport (2.5 miles)

  • Lowest 10 September, 2026

    46.9 °F

  • Average September

    71.3 °F

  • Highest 13 September, 2026

    96.6 °F

Climate (2021–2026)

Erie Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    66.9 °F
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