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.
Fair
75°F
24°C
| Humidity | 76% |
| Wind Speed | S 13 mph |
| Barometer | 29.88 in |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 18 May 5:55 am CDT |
Extended Forecast for
Maryville IL
Today
High: 80 °F
Showers
Likely then
T-stormsTonight
Low: 71 °F
Chance
T-storms then
Partly CloudyTuesday
High: 85 °F
Showers
Likely then
T-stormsTuesday Night
Low: 58 °F
Showers
Wednesday
High: 69 °F
Mostly Cloudy
Wednesday Night
Low: 52 °F
Mostly Cloudy
Thursday
High: 73 °F
Partly Sunny
Thursday Night
Low: 58 °F
Mostly Cloudy
then Chance
ShowersFriday
High: 76 °F
Chance
Showers then
Chance
T-storms
Detailed Forecast
Today
Showers and thunderstorms, mainly before 5pm. High near 80. South wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 71. South wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Tuesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 85. Southwest wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 58. Northwest wind 8 to 10 mph. Chance of precipitation is 80%.
Wednesday
Mostly cloudy, with a high near 69. North wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 73.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 58.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 86.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Maryville IL
38.72°N 90°W (Elev. 551 ft)
38.72°N 90°W (Elev. 551 ft)
5:51 am CDT May 18, 2026
6am CDT May 18, 2026-6pm CDT May 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
