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 Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Overcast
68°F
20°C
| Humidity | 84% |
| Wind Speed | N 7 mph |
| Barometer | 30.12 in (1019.7 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 19 May 9:53 pm CDT |
Extended Forecast for
Granite City IL
Tonight
Low: 56 °F
Slight Chance
T-stormsWednesday
High: 64 °F
Cloudy
Wednesday Night
Low: 53 °F
Mostly Cloudy
Thursday
High: 73 °F
Partly Sunny
Thursday Night
Low: 57 °F
Chance
Showers then
Showers
LikelyFriday
High: 74 °F
Showers
Friday Night
Low: 59 °F
Slight Chance
T-stormsSaturday
High: 81 °F
Partly Sunny
then Slight
Chance
T-stormsSaturday Night
Low: 61 °F
Chance
Showers
Detailed Forecast
Tonight
A 20 percent chance of showers and thunderstorms. Cloudy, with a low around 56. North wind 7 to 10 mph.
Wednesday
Cloudy, with a high near 64. North wind around 9 mph.
Wednesday Night
Mostly cloudy, with a low around 53. Northeast wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 73. Northeast wind 6 to 9 mph.
Thursday Night
Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 57. East wind 7 to 9 mph. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 59.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Memorial Day
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Granite City IL
38.71°N 90.11°W (Elev. 413 ft)
38.71°N 90.11°W (Elev. 413 ft)
9:46 pm CDT May 19, 2026
9pm CDT May 19, 2026-6pm CDT May 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
