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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Boulder Municipal Airport (KBDU)

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

Fair

55°F

13°C

Humidity 28%
Wind Speed SW 6 mph
Barometer 30.15 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 18 Oct 12:55 am MDT
Extended Forecast for

Brainard Lake CO

  • Overnight

    Overnight: Mostly clear, with a low around 36. Breezy, with a west wind around 15 mph, with gusts as high as 24 mph.

    Low: 36 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 53. West wind 9 to 14 mph becoming light and variable. Winds could gust as high as 22 mph.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Light and variable wind becoming southwest around 6 mph after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain and snow showers after noon. Mostly sunny, with a high near 49. Southwest wind 5 to 7 mph becoming east southeast in the afternoon. Chance of precipitation is 20%.

    High: 49 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. Light and variable wind becoming west 5 to 10 mph in the evening. Winds could gust as high as 18 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 36. Breezy, with a west wind around 15 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 53. West wind 9 to 14 mph becoming light and variable. Winds could gust as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 35. Light and variable wind becoming southwest around 6 mph after midnight.
Monday
A slight chance of rain and snow showers after noon. Mostly sunny, with a high near 49. Southwest wind 5 to 7 mph becoming east southeast in the afternoon. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 35. Light and variable wind becoming west 5 to 10 mph in the evening. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A chance of showers after noon. Mostly cloudy, with a high near 57.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 40.
Friday
Showers likely. Mostly cloudy, with a high near 54.
Friday Night
Rain and snow showers likely. Mostly cloudy, with a low around 33.
Saturday
A chance of snow showers. Partly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brainard Lake CO
 40.07°N 105.57°W (Elev. 10561 ft)
Last Update:
12:46 am MDT Oct 18, 2026
Forecast Valid:
1am MDT Oct 18, 2026-6pm MDT Oct 24, 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