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Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
65°F
18°C
| Humidity | 91% |
| Wind Speed | Calm |
| Barometer | 30.00 in |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 20 Jun 1:35 am CDT |
Extended Forecast for
3 Miles NNE Chesterfield IL
Flood Watch June 21, 07:00am until June 22, 01:00am
Overnight
Low: 65 °F
Mostly Cloudy
Saturday
High: 83 °F
Mostly Sunny
Saturday Night
Low: 62 °F
Partly Cloudy
Sunday
High: 79 °F
Heavy Rain
Sunday Night
Low: 59 °F
T-storms then
ShowersMonday
High: 75 °F
Slight Chance
ShowersMonday Night
Low: 56 °F
Partly Cloudy
Tuesday
High: 78 °F
Mostly Sunny
Tuesday Night
Low: 58 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly cloudy, with a low around 65. Light and variable wind.
Saturday
Mostly sunny, with a high near 83. Northwest wind around 5 mph becoming calm in the morning.
Saturday Night
Partly cloudy, with a low around 62. Calm wind becoming east around 6 mph after midnight.
Sunday
Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could produce heavy rainfall. High near 79. East wind 8 to 14 mph becoming south in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Sunday Night
Showers and thunderstorms. Low around 59. Southwest wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Chesterfield IL
39.3°N 90.06°W (Elev. 558 ft)
39.3°N 90.06°W (Elev. 558 ft)
1:26 am CDT Jun 20, 2026
1am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
Additional Resources
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