Longmont Weather Forecast

    • 60
    • 92

    Chance Thunderstorms

    • 59
    • 93

    Chance Thunderstorms

    • 58
    • 96

    Mostly Sunny

    • 61
    • 98

    Hot

    • 62
    • 100

    Hot

    • 62
    • 99

    Hot

    • 62
    • 97

    Hot

Today 26 Jul Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Slight chance of Thunderstorms late in the morning. Chance of Thunderstorms in the afternoon. Highs near 90. Chance of precipitation 50 percent.

Tonight 26 Jul Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy with a chance of Thunderstorms early in the Evening, then mostly cloudy with a chance of Showers and slight chance of Thunderstorms during the late evening hours. Partly cloudy after midnight. Lows near 60. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Longmont Temperature Statistics

July Temperature

Vance Brand Airport (3.1 miles)

  • Lowest 6 July, 2024

    51.3 °F

  • Average July

    74.7 °F

  • Highest 12 July, 2024

    104 °F

Climate (2019–Present)

Vance Brand Airport (3.1 miles)

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  • Average Low 2019–2024

    37.3 °F

  • Average 2019–2024

    52 °F

  • Average High 2019–2024

    67.5 °F
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