Lyons Weather Forecast

    • 56
    • 78

    Thunderstorms Likely

    • 56
    • 80

    Rain Showers

    • 55
    • 80

    Thunderstorms Likely

    • 53
    • 80

    Rain Showers

    • 55
    • 82

    Chance Thunderstorms

    • 57
    • 86

    Slight Chance Thunderstorms

Today 13 Aug Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Highs 78 to 84. Chance of precipitation 70 percent.

Tonight 13 Aug Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Chance of Showers after midnight. Lows near 60. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lyons Temperature Statistics

August Temperature

Vance Brand Airport (6.8 miles)

  • Lowest 5 August, 2026

    50.4 °F

  • Average August

    74.2 °F

  • Highest 3 August, 2026

    100.8 °F

Climate (2021–2026)

Vance Brand Airport (6.8 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    68.8 °F
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