National Weather Service Forecast for: University City MO
Issued by: National Weather Service Saint Louis, MO
Updated: 5:51 pm CDT Sep 12, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 73. Light and variable wind.
Partly Cloudy

 Sunday

Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Slight Chance
Showers then
Slight Chance
T-storms
 Sunday
Night
Sunday Night: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then isolated showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.
Slight Chance
T-storms

 Monday

Monday: Mostly cloudy, then gradually becoming sunny, with a high near 88. Southeast wind 8 to 10 mph.
Decreasing
Clouds

 Monday
Night
Monday Night: Mostly clear, with a low around 73. Southeast wind 8 to 10 mph.
Mostly Clear

 Tuesday

Tuesday: Sunny and hot, with a high near 98.
Hot

 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 75.
Partly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 96.
Mostly Sunny

 Wednesday
Night
Wednesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 75.
Partly Cloudy
then Slight
Chance
Showers
Lo 73 °F Hi 88 °F Lo 66 °F Hi 88 °F Lo 73 °F Hi 98 °F Lo 75 °F Hi 96 °F Lo 75 °F

 

Tonight
 
 Partly cloudy, with a low around 73. Light and variable wind.
Sunday
 
 A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Sunday Night
 
 A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then isolated showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.
Monday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 88. Southeast wind 8 to 10 mph.
Monday Night
 
 Mostly clear, with a low around 73. Southeast wind 8 to 10 mph.
Tuesday
 
 Sunny and hot, with a high near 98.
Tuesday Night
 
 Partly cloudy, with a low around 75.
Wednesday
 
 Mostly sunny, with a high near 96.
Wednesday Night
 
 A 20 percent chance of showers after 1am. Partly cloudy, with a low around 75.
Thursday
 
 A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Friday Night
 
 A 20 percent chance of showers. Partly cloudy, with a low around 66.
Saturday
 
 A 30 percent chance of showers. Mostly sunny, with a high near 84.

 

Forecast from NOAA-NWS for University City MO.