National Weather Service Forecast for: Maryland Heights MO
Issued by: National Weather Service Saint Louis, MO
Updated: 3:26 am CDT Aug 20, 2026
 
Today

Today: Partly sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the morning.
Partly Sunny

 Tonight

Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Friday

Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 89. Light and variable wind.
Patchy Fog
then Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 70. Calm wind.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 86. Northwest wind 3 to 8 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 66.
Mostly Clear

 Sunday

Sunday: Mostly sunny, with a high near 84.
Mostly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 66.
Mostly Cloudy

 Monday

Monday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. Chance of precipitation is 20%.
Slight Chance
Showers then
Slight Chance
T-storms
Hi 84 °F Lo 65 °F Hi 89 °F Lo 70 °F Hi 86 °F Lo 66 °F Hi 84 °F Lo 66 °F Hi 83 °F

 

Today
 
 Partly sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the morning.
Tonight
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 89. Light and variable wind.
Friday Night
 
 Partly cloudy, with a low around 70. Calm wind.
Saturday
 
 Mostly sunny, with a high near 86. Northwest wind 3 to 8 mph.
Saturday Night
 
 Mostly clear, with a low around 66.
Sunday
 
 Mostly sunny, with a high near 84.
Sunday Night
 
 Mostly cloudy, with a low around 66.
Monday
 
 A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. Chance of precipitation is 20%.
Monday Night
 
 Partly cloudy, with a low around 67.
Tuesday
 
 Mostly sunny, with a high near 87.
Tuesday Night
 
 Partly cloudy, with a low around 70.
Wednesday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Maryland Heights MO.