National Weather Service Forecast for: St. Charles County Smartt Airport MO
Issued by: National Weather Service Saint Louis, MO
Updated: 6:13 am CDT Jul 22, 2017
 
Today

Today: Sunny and hot, with a high near 101. Heat index values as high as 112. Southwest wind 5 to 13 mph.
Hot
Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly after 8pm.  Increasing clouds, with a low around 77. West wind 5 to 9 mph becoming light.
Chance
T-storms
Sunday

Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 95. Heat index values as high as 103. West wind 3 to 6 mph.
Slight Chance
T-storms
Sunday
Night
Sunday Night: Partly cloudy, with a low around 71. West wind around 6 mph becoming calm  in the evening.
Partly Cloudy
Monday

Monday: Sunny, with a high near 90. North wind 3 to 6 mph.
Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 69.
Mostly Clear
Tuesday

Tuesday: Mostly sunny, with a high near 90.
Mostly Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 71.
Mostly Clear
Wednesday

Wednesday: Mostly sunny, with a high near 93.
Mostly Sunny
Hi 101 °F Lo 77 °F Hi 95 °F Lo 71 °F Hi 90 °F Lo 69 °F Hi 90 °F Lo 71 °F Hi 93 °F

Excessive Heat Warning
Hazardous Weather Outlook
 

Today
 
Sunny and hot, with a high near 101. Heat index values as high as 112. Southwest wind 5 to 13 mph.
Tonight
 
A 30 percent chance of showers and thunderstorms, mainly after 8pm. Increasing clouds, with a low around 77. West wind 5 to 9 mph becoming light.
Sunday
 
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 95. Heat index values as high as 103. West wind 3 to 6 mph.
Sunday Night
 
Partly cloudy, with a low around 71. West wind around 6 mph becoming calm in the evening.
Monday
 
Sunny, with a high near 90. North wind 3 to 6 mph.
Monday Night
 
Mostly clear, with a low around 69.
Tuesday
 
Mostly sunny, with a high near 90.
Tuesday Night
 
Mostly clear, with a low around 71.
Wednesday
 
Mostly sunny, with a high near 93.
Wednesday Night
 
Partly cloudy, with a low around 73.
Thursday
 
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Thursday Night
 
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Friday
 
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.

 

Forecast from NOAA-NWS for St. Charles County Smartt Airport MO.