Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

Boulder Municipal Airport (KBDU)

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

Fair

97°F

36°C

Humidity	17%
Wind Speed	Calm
Barometer	30.11 in
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	26 Jul 1:55 pm MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Boulder CO

Heat Advisory until July 26, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until July 26, 09:00pm
NOW until 9:00pm Sun
Heat Advisory
This Afternoon
High: 100 °F
Chance
T-storms
Tonight
Low: 73 °F
Slight Chance
T-storms then
Mostly Cloudy
Monday
High: 94 °F
Mostly Cloudy
then Chance
T-storms
Monday Night
Low: 66 °F
Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 91 °F
Mostly Sunny
then T-storms
Likely
Tuesday Night
Low: 64 °F
Showers
Likely then
Partly Cloudy
Wednesday
High: 91 °F
Sunny then
T-storms
Likely
Wednesday Night
Low: 64 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny and hot, with a high near 100. Northeast wind 6 to 8 mph becoming west.

Tonight

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 73. West wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.

Monday

A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 94. Calm wind becoming north 5 to 7 mph.

Monday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 66. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

Tuesday

Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 91. Calm wind becoming east around 5 mph. Chance of precipitation is 70%.

Tuesday Night

Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

Wednesday

Showers and thunderstorms likely after noon. Mostly sunny, with a high near 91. Chance of precipitation is 60%.

Wednesday Night

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64.

Thursday

A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.

Thursday Night

A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 64.

Friday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94.