Niwot Weather Forecast

    • 58
    • 89

    Chance Thunderstorms

    • 57
    • 83

    Chance Thunderstorms

    • 56
    • 85

    Rain Showers Likely

    • 55
    • 83

    Rain Showers Likely

    • 58
    • 90

    Chance Thunderstorms

    • 58
    • 96

    Hot

    • 56
    • 91

    Mostly Sunny

Today 22 Jun Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Chance of Thunderstorms. Some Thunderstorms may produce damaging Winds and large hail late in the afternoon. Highs 85 to 91. Chance of precipitation 30 percent.

Tonight 22 Jun Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Slight chance of Thunderstorms in the evening. Smoke after midnight. Areas of smoke towards Sunrise. Some Thunderstorms may produce damaging Winds and large hail in the evening. Lows 53 to 61. East Winds 10 to 15 Mph with Gusts up to 20 Mph in the Evening, becoming light. Chance of precipitation 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Niwot Temperature Statistics

June Temperature

Vance Brand Airport (3.7 miles)

  • Lowest 12 June, 2026

    43.9 °F

  • Average June

    68.8 °F

  • Highest 6 June, 2026

    93.7 °F

Climate (2021–2026)

Vance Brand Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    68.8 °F
Get WillyWeather+ to remove ads