Hazardous Weather Conditions
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Mostly Cloudy
77°F
25°C
| Humidity | 79% |
| Wind Speed | S 5 mph |
| Barometer | 30.09 in (1017.8 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 11 Aug 8:51 am CDT |
Extended Forecast for
Saint Charles MO
Today
High: 89 °F
Slight Chance
T-stormsTonight
Low: 74 °F
Chance
T-stormsTuesday
High: 90 °F
Slight Chance
T-storms then
Chance
T-stormsTuesday Night
Low: 72 °F
Chance
T-stormsWednesday
High: 87 °F
Chance
T-stormsWednesday Night
Low: 70 °F
Partly Cloudy
Thursday
High: 88 °F
Mostly Sunny
then Slight
Chance
T-stormsThursday Night
Low: 72 °F
Partly Cloudy
Friday
High: 91 °F
Mostly Sunny
Detailed Forecast
Today
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly clear, with a low around 74. South wind around 6 mph becoming calm in the evening.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after noon. Sunny, with a high near 90. Southwest wind 3 to 7 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 91.
Friday Night
Partly cloudy, with a low around 74.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Saint Charles MO
38.8°N 90.51°W (Elev. 499 ft)
38.8°N 90.51°W (Elev. 499 ft)
9:31 am CDT Aug 11, 2025
9am CDT Aug 11, 2025-6pm CDT Aug 17, 2025
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