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

Hazardous Weather Conditions

Current conditions at

Boulder Municipal Airport (KBDU)

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

Light Rain

41°F

5°C

Humidity 100%
Wind Speed NE 3 mph
Barometer 29.97 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 May 4:15 pm MDT
Extended Forecast for

Brainard Lake CO

Winter Weather Advisory May 18, 04:37pm until May 18, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory May 18, 04:37pm until May 18, 09:00pm

    NOW until 9:00pm Mon

    Winter Weather Advisory

  • This Afternoon

    High: 24 °F

    Heavy Snow

  • Tonight

    Tonight: Snow showers, mainly before midnight. Patchy fog. Steady temperature around 23. North northwest wind 5 to 7 mph becoming south southwest after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow Showers
    and Patchy
    Fog

  • Tuesday

    Tuesday: Snow showers likely, mainly after 3pm. Some thunder is also possible. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 31. Southwest wind around 8 mph becoming east southeast in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 31 °F

    Snow Showers
    Likely and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before 9pm. Low around 25. Southeast wind 5 to 7 mph becoming southwest after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Snow Showers
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Snow showers, mainly after noon. Some thunder is also possible. High near 42. Southwest wind 5 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

    High: 42 °F

    Chance Snow
    Showers then
    Snow Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow showers before midnight. Some thunder is also possible. Partly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 47. Chance of precipitation is 70%.

    High: 47 °F

    Mostly Sunny
    then Snow
    Showers
    Likely

  • Thursday Night

    Thursday Night: Rain and snow showers likely before midnight, then a chance of snow showers. Some thunder is also possible. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Snow showers. The snow could be heavy at times. Some thunder is also possible. Steady temperature around 24. North wind around 7 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 8 to 12 inches possible.
Tonight
Snow showers, mainly before midnight. Patchy fog. Steady temperature around 23. North northwest wind 5 to 7 mph becoming south southwest after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow showers likely, mainly after 3pm. Some thunder is also possible. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 31. Southwest wind around 8 mph becoming east southeast in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow showers, mainly before 9pm. Low around 25. Southeast wind 5 to 7 mph becoming southwest after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow showers, mainly after noon. Some thunder is also possible. High near 42. Southwest wind 5 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.
Wednesday Night
A 30 percent chance of snow showers before midnight. Some thunder is also possible. Partly cloudy, with a low around 26.
Thursday
Snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 47. Chance of precipitation is 70%.
Thursday Night
Rain and snow showers likely before midnight, then a chance of snow showers. Some thunder is also possible. Mostly cloudy, with a low around 28.
Friday
A chance of snow showers before 3pm, then a chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 48. Breezy.
Friday Night
A slight chance of rain and snow showers before 9pm, then a slight chance of snow showers between 9pm and midnight. Some thunder is also possible. Partly cloudy, with a low around 26.
Saturday
A chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 52. Breezy.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 35.
Memorial Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brainard Lake CO
 40.09°N 105.57°W (Elev. 10564 ft)
Last Update:
12:46 pm MDT May 18, 2026
Forecast Valid:
4pm MDT May 18, 2026-6pm MDT May 25, 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