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

Overnight: Partly cloudy, with a low around 77. South wind around 10 mph, with gusts as high as 20 mph.
Partly Cloudy

 Tuesday

Tuesday: Sunny and hot, with a high near 95. 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: Mostly clear, with a low around 75. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear

 Wednesday

Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 103. South wind 10 to 15 mph, with gusts as high as 25 mph.
Hot

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 76.
Partly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 94.
Mostly Sunny

 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Partly Cloudy
then Chance
T-storms
 Friday

Friday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Chance
T-storms
 Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.
Chance
T-storms
Lo 77 °F Hi 95 °F Lo 75 °F Hi 95 °F Lo 76 °F Hi 94 °F Lo 74 °F Hi 91 °F Lo 72 °F

Hazardous Weather Outlook
Extreme Heat Warning
 

Overnight
 
 Partly cloudy, with a low around 77. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
 
 Sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
 
 Mostly clear, with a low around 75. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
 
 Sunny and hot, with a high near 95. Heat index values as high as 103. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
 
 Partly cloudy, with a low around 76.
Thursday
 
 Mostly sunny, with a high near 94.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Friday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Friday Night
 
 A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.
Independence Day
 
 A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92.
Saturday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Sunday Night
 
 A 30 percent chance of showers. Partly cloudy, with a low around 68.
Monday
 
 Sunny, with a high near 87.

 

Forecast from NOAA-NWS for Iowa City IA.