NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment
After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >
Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Overcast
63°F
17°C
| Humidity | 80% |
| Wind Speed | E 8 mph |
| Barometer | 30.02 in |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 22 May 1:35 am CDT |
Extended Forecast for
Carlinville IL
Overnight
Low: 55 °F
Mostly Cloudy
Friday
High: 67 °F
Mostly Cloudy
then Chance
ShowersFriday Night
Low: 53 °F
Chance
ShowersSaturday
High: 78 °F
Partly Sunny
Saturday Night
Low: 57 °F
Slight Chance
T-storms then
Showers
LikelySunday
High: 79 °F
Showers
LikelySunday Night
Low: 56 °F
Partly Cloudy
Memorial Day
High: 82 °F
Partly Sunny
Monday Night
Low: 59 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 55. East wind around 6 mph.
Friday
A 30 percent chance of showers, mainly after 3pm. Mostly cloudy, with a high near 67. East wind 7 to 9 mph.
Friday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 53. East wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 78. Light and variable wind.
Saturday Night
A slight chance of showers and thunderstorms, then showers likely after 10pm. Mostly cloudy, with a low around 57. Calm wind. Chance of precipitation is 60%.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 56.
Memorial Day
Partly sunny, with a high near 82.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 82.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Carlinville IL
39.27°N 89.89°W (Elev. 614 ft)
39.27°N 89.89°W (Elev. 614 ft)
1:26 am CDT May 22, 2026
1am CDT May 22, 2026-6pm CDT May 28, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
