National Weather Service Forecast for: Mehlville MO
Issued by: National Weather Service Saint Louis, MO
Updated: 4:21 pm CDT Jul 7, 2025
 
This
Afternoon
This Afternoon: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89. Northeast wind around 5 mph.
Slight Chance
T-storms

 Tonight

Tonight: Partly cloudy, with a low around 71. East wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Tuesday

Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph.
Chance
T-storms

 Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Wednesday

Wednesday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 88. Calm wind. Chance of precipitation is 30%.
Chance
Showers then
Chance
T-storms
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 71.
Partly Cloudy

 Thursday

Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Slight Chance
Showers then
Slight Chance
T-storms
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 73.
Partly Cloudy

 Friday

Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Mostly Sunny
then Slight
Chance
T-storms
Hi 89 °F Lo 71 °F Hi 90 °F Lo 72 °F Hi 88 °F Lo 71 °F Hi 90 °F Lo 73 °F Hi 94 °F

Hazardous Weather Outlook
 

This Afternoon
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89. Northeast wind around 5 mph.
Tonight
 
 Partly cloudy, with a low around 71. East wind around 5 mph becoming calm in the evening.
Tuesday
 
 A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph.
Tuesday Night
 
 A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 30%.
Wednesday
 
 A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 88. Calm wind. Chance of precipitation is 30%.
Wednesday Night
 
 Partly cloudy, with a low around 71.
Thursday
 
 A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Thursday Night
 
 Partly cloudy, with a low around 73.
Friday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Friday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Sunday
 
 A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Monday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Mehlville MO.