Hazardous Weather Conditions
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Thunderstorm Light Rain
79°F
26°C
| Humidity | 65% |
| Wind Speed | S 14 G 26 mph |
| Barometer | 29.76 in (1007.0 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 17 Apr 3:51 pm CDT |
Extended Forecast for
Frontenac MO
Tornado Watch until April 17, 11:00pm
NOW until 11:00pm Fri

Tornado Watch
This Afternoon

High: 87 °F
Severe
ThunderstormsTonight

Low: 48 °F
Severe
ThunderstormsSaturday
High: 60 °F
Chance
Showers then
SunnySaturday Night

Low: 42 °F
Clear
Sunday

High: 68 °F
Sunny
Sunday Night

Low: 43 °F
Mostly Clear
Monday

High: 72 °F
Sunny
Monday Night

Low: 54 °F
Clear
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 87. South wind around 13 mph, with gusts as high as 23 mph.
Tonight
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Some of the storms could be severe. Low around 48. South wind 10 to 13 mph becoming west in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 100%.
Saturday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 60. Northwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Saturday Night
Clear, with a low around 42. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 68. West wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 72.
Monday Night
Clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Frontenac MO
38.62°N 90.4°W (Elev. 597 ft)
38.62°N 90.4°W (Elev. 597 ft)
3:46 pm CDT Apr 17, 2026
4pm CDT Apr 17, 2026-6pm CDT Apr 24, 2026



