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

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Current conditions at

Boulder Municipal Airport (KBDU)

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

Fair

75°F

24°C

Humidity 25%
Wind Speed NE 3 mph
Barometer 30.07 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 25 May 11:35 am MDT
Extended Forecast for

Boulder CO

  • Memorial Day

    Memorial Day: A 40 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 84. Light and variable wind becoming south 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 84 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 81. Breezy, with a light and variable wind becoming south southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. South wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 24 mph.

    Low: 54 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 75. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 75 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Memorial Day
A 40 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 84. Light and variable wind becoming south 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.
Tonight
Mostly cloudy, with a low around 55. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 81. Breezy, with a light and variable wind becoming south southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. South wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 24 mph.
Wednesday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 75. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.
Thursday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 54.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 77.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Boulder CO
 40.04°N 105.25°W (Elev. 5404 ft)
Last Update:
2:41 am MDT May 25, 2026
Forecast Valid:
11am MDT May 25, 2026-6pm MDT May 31, 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