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.
Partly Cloudy
66°F
19°C
| Humidity | 90% |
| Wind Speed | S 14 mph |
| Barometer | 29.96 in |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 19 May 2:35 am CDT |
Extended Forecast for
Saint Jacob IL
Flood Watch May 19, 02:43am until May 19, 01:00pm
NOW until 1:00pm Tue
Flood Watch
Overnight
Low: 65 °F
Slight Chance
T-stormsTuesday
High: 77 °F
Chance
T-stormsTuesday Night
Low: 57 °F
Chance
T-stormsWednesday
High: 70 °F
Mostly Cloudy
Wednesday Night
Low: 52 °F
Mostly Cloudy
Thursday
High: 71 °F
Mostly Cloudy
Thursday Night
Low: 57 °F
Slight Chance
Showers then
Showers
LikelyFriday
High: 73 °F
Showers
Detailed Forecast
Overnight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 65. South wind 8 to 10 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Southwest wind 8 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Cloudy, with a low around 57. North wind 8 to 10 mph. Chance of precipitation is 40%.
Wednesday
Mostly cloudy, with a high near 70. Northeast wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 52. Northeast wind around 8 mph.
Thursday
Mostly cloudy, with a high near 71.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 73. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 59.
Saturday
Partly sunny, with a high near 79.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Memorial Day
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Additional Forecasts and Information
Basemap Options
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Saint Jacob IL
38.7°N 89.77°W (Elev. 509 ft)
38.7°N 89.77°W (Elev. 509 ft)
2:11 am CDT May 19, 2026
2am CDT May 19, 2026-6pm CDT May 25, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
