National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boulder Municipal Airport (KBDU)

Lat: 40.04°NLon: 105.23°WElev: 5288ft.

Fair

61°F

16°C

Humidity 25%
Wind Speed E 5 mph
Barometer 29.94 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 15 May 7:15 am MDT
Extended Forecast for

Niwot CO

  • Today

    Today: Increasing clouds, with a high near 86. Calm wind becoming east southeast 5 to 8 mph in the morning. Winds could gust as high as 17 mph.

    High: 86 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 52. East southeast wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 16 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming east southeast 5 to 8 mph in the morning. Winds could gust as high as 16 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 50. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph.

    Low: 50 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 75. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 75 °F

    Slight Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm, then showers after midnight. Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 50. Chance of precipitation is 90%.

    High: 50 °F

    Showers

  • Monday Night

    Monday Night: A chance of rain and snow showers before 9pm, then a chance of rain showers between 9pm and 3am, then a chance of rain and snow showers after 3am. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Increasing clouds, with a high near 86. Calm wind becoming east southeast 5 to 8 mph in the morning. Winds could gust as high as 17 mph.
Tonight
Partly cloudy, with a low around 52. East southeast wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 16 mph.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming east southeast 5 to 8 mph in the morning. Winds could gust as high as 16 mph.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 50. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Sunday
A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 75. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm, then showers after midnight. Low around 43. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm. High near 50. Chance of precipitation is 90%.
Monday Night
A chance of rain and snow showers before 9pm, then a chance of rain showers between 9pm and 3am, then a chance of rain and snow showers after 3am. Mostly cloudy, with a low around 33.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 56.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 37.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 65.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Niwot CO
 40.09°N 105.17°W (Elev. 5098 ft)
Last Update:
12:46 am MDT May 15, 2026
Forecast Valid:
7am MDT May 15, 2026-6pm MDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation