Monsoon Flood Threat in the Southwest; Hot in the South and Northwest

Monsoonal heavy rain will continue flash flood potential across the Southwest and Intermountain West to the central and southern Rockies through this weekend, especially in complex terrain, burn scars, and urban areas. Excessive heat and humidity with heat indices over 110 degrees will be common over much of the Deep South and interior Northwest this weekend. Read More >

Current conditions at

Boulder Municipal Airport (KBDU)

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

Thunderstorm in Vicinity

72°F

22°C

Humidity 65%
Wind Speed E 3 mph
Barometer 30.39 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 31 Jul 1:55 pm MDT
Extended Forecast for

Boulder CO

Flash Flood Watch until July 31, 09:00pm
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until July 31, 09:00pm

    NOW until
    9:00pm Sat

    Flash Flood Watch

  • This
    Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Some of the storms could produce heavy rain.  High near 75. North northeast wind around 8 mph, with gusts as high as 15 mph.  Chance of precipitation is 80%.

    Heavy Rain

    High: 75 °F

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Some of the storms could produce heavy rain.  Mostly cloudy, with a low around 60. North wind around 6 mph becoming calm  after midnight.

    Heavy Rain

    Low: 60 °F

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 9am.  Partly sunny, with a high near 81. Calm wind becoming southeast 5 to 8 mph in the afternoon.  Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 81 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 60. South southeast wind 5 to 7 mph becoming calm  after midnight.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 60 °F

  • Monday

    Monday: A slight chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm.  Partly sunny, with a high near 82. Calm wind becoming north 5 to 7 mph in the afternoon.  Chance of precipitation is 70%.

    Slight Chance
    T-storms then
    T-storms
    Likely

    High: 82 °F

  • Monday
    Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 61.

    Chance
    T-storms then
    Slight Chance
    T-storms

    Low: 61 °F

  • Tuesday

    Tuesday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 82. Chance of precipitation is 70%.

    Chance
    Showers then
    Showers
    Likely

    High: 82 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 60.

    Chance
    T-storms then
    Partly Cloudy

    Low: 60 °F

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. High near 75. North northeast wind around 8 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Tonight
A 50 percent chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 60. North wind around 6 mph becoming calm after midnight.
Sunday
A chance of showers, with thunderstorms also possible after 9am. Partly sunny, with a high near 81. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. South southeast wind 5 to 7 mph becoming calm after midnight.
Monday
A slight chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 82. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 61.
Tuesday
A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60.
Wednesday
A chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 84.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 89.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 61.
Friday
A chance of showers and thunderstorms. Sunny, with a high near 90.
Click Map For Forecast
Point Forecast:
Boulder CO
 40.02°N 105.25°W (Elev. 5358 ft)
4:05 am MDT Jul 31, 2021
2pm MDT Jul 31, 2021-6pm MDT Aug 6, 2021
 
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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