National Weather Service Forecast for: Dubuque IA
Issued by: National Weather Service Quad Cities, IA/IL
Updated: 9:02 pm CDT Jun 18, 2026
 
Tonight

Tonight: Isolated showers and thunderstorms before 11pm. Mostly clear, with a low around 55. West wind around 5 mph. Chance of precipitation is 20%.
Isolated
T-storms then
Mostly Clear
 Juneteenth

Juneteenth: A 10 percent chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 78. Northwest wind 5 to 10 mph.
Sunny then
Slight Chance
T-storms
 Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 58. West wind 5 to 10 mph.
Chance
Showers then
Slight Chance
T-storms
 Saturday

Saturday: Sunny, with a high near 80. Northwest wind around 5 mph.
Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 58.
Mostly Cloudy

 Sunday

Sunday: Showers likely. Mostly cloudy, with a high near 73. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Showers
Likely

 Sunday
Night
Sunday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 56.
Chance
Showers

 Monday

Monday: Partly sunny, with a high near 77.
Partly Sunny

 Monday
Night
Monday Night: Partly cloudy, with a low around 55.
Partly Cloudy
Lo 55 °F Hi 78 °F Lo 58 °F Hi 80 °F Lo 58 °F Hi 73 °F Lo 56 °F Hi 77 °F Lo 55 °F

Hazardous Weather Outlook
 

Tonight
 
 Isolated showers and thunderstorms before 11pm. Mostly clear, with a low around 55. West wind around 5 mph. Chance of precipitation is 20%.
Juneteenth
 
 A 10 percent chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 78. Northwest wind 5 to 10 mph.
Friday Night
 
 A 40 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 58. West wind 5 to 10 mph.
Saturday
 
 Sunny, with a high near 80. Northwest wind around 5 mph.
Saturday Night
 
 Mostly cloudy, with a low around 58.
Sunday
 
 Showers likely. Mostly cloudy, with a high near 73. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
 
 A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 56.
Monday
 
 Partly sunny, with a high near 77.
Monday Night
 
 Partly cloudy, with a low around 55.
Tuesday
 
 Mostly sunny, with a high near 78.
Tuesday Night
 
 A 40 percent chance of showers. Partly cloudy, with a low around 58.
Wednesday
 
 Mostly sunny, with a high near 79.
Wednesday Night
 
 Mostly clear, with a low around 57.
Thursday
 
 Mostly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Dubuque IA.