National Weather Service Forecast for: Dubuque IA
Issued by: National Weather Service Quad Cities, IA/IL
Updated: 7:56 pm CDT Jun 29, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 78. South wind around 10 mph, with gusts as high as 20 mph.
Partly Cloudy

 Tuesday

Tuesday: Mostly sunny and hot, with a high near 96. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Hot

 Tuesday
Night
Tuesday Night: A chance of showers between 2am and 4am. Partly cloudy, with a low around 76. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Partly Cloudy
then Chance
Showers
 Wednesday

Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 102. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Hot

 Wednesday
Night
Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77.
Partly Cloudy
then Chance
T-storms
 Thursday

Thursday: A 40 percent chance of showers before 1pm. Mostly sunny, with a high near 93.
Chance
Showers

 Thursday
Night
Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
 Friday

Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Chance
Showers then
Chance
T-storms
 Friday
Night
Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Chance
T-storms
Lo 78 °F Hi 96 °F Lo 76 °F Hi 95 °F Lo 77 °F Hi 93 °F Lo 74 °F Hi 90 °F Lo 72 °F

Hazardous Weather Outlook
Extreme Heat Warning
 

Tonight
 
 Partly cloudy, with a low around 78. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
 
 Mostly sunny and hot, with a high near 96. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
 
 A chance of showers between 2am and 4am. Partly cloudy, with a low around 76. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Wednesday
 
 Sunny and hot, with a high near 95. Heat index values as high as 102. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
 
 A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77.
Thursday
 
 A 40 percent chance of showers before 1pm. Mostly sunny, with a high near 93.
Thursday Night
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Friday
 
 A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Friday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Independence Day
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Sunday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Sunday Night
 
 Partly cloudy, with a low around 67.
Monday
 
 Sunny, with a high near 85.

 

Forecast from NOAA-NWS for Dubuque IA.