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

63°F

17°C

Humidity 25%
Wind Speed Calm
Barometer 30.32 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 17 Oct 11:35 am MDT
Extended Forecast for

Louisville CO

  • Today

    Today: Sunny, with a high near 74. Calm wind becoming east southeast around 5 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 44. Light and variable wind becoming west 5 to 7 mph in the evening.

    Low: 44 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73. West southwest wind around 6 mph becoming light and variable  in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68. Calm wind becoming east around 5 mph.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Calm wind becoming east southeast around 5 mph.
Tonight
Clear, with a low around 44. Light and variable wind becoming west 5 to 7 mph in the evening.
Sunday
Mostly sunny, with a high near 73. West southwest wind around 6 mph becoming light and variable in the afternoon.
Sunday Night
Partly cloudy, with a low around 46. Light and variable wind.
Monday
Mostly sunny, with a high near 68. Calm wind becoming east around 5 mph.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 74.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 52.
Friday
A chance of showers. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville CO
 39.98°N 105.16°W (Elev. 5515 ft)
12:46 am MDT Oct 17, 2026
11am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
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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