


Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Thunderstorm in Vicinity
74°F
23°C
Humidity | 85% |
Wind Speed | SE 17 G 26 mph |
Barometer | 29.64 in (1003.3 mb) |
Dewpoint | 69°F (21°C) |
Visibility | 10.00 mi |
Last update | 19 May 9:54 pm CDT |
Extended Forecast for
Dow IL
Tornado Watch May 19, 11:19pm until May 20, 03:00am
NOW until 3:00am Tue
Tornado Watch
Tonight
Low: 65 °F
Severe
ThunderstormsTuesday
High: 79 °F
Showers
Likely then
Scattered
T-stormsTuesday Night
Low: 53 °F
Partly Cloudy
Wednesday
High: 67 °F
Mostly Sunny
Wednesday Night
Low: 49 °F
Slight Chance
ShowersThursday
High: 63 °F
Partly Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 67 °F
Mostly Sunny
Detailed Forecast
Tonight
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Some of the storms could be severe and produce heavy rainfall. Low around 65. Southeast wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Tuesday
Showers likely and possibly a thunderstorm before 8am, then scattered showers and thunderstorms, mainly between 8am and 4pm. Mostly cloudy, with a high near 79. Southeast wind around 16 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 53. West wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 67. West wind 15 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 49. West wind 10 to 14 mph, with gusts as high as 22 mph.
Thursday
Partly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 67.
Friday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 50.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 68.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 54.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 68.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Memorial Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Dow IL
39.04°N 90.33°W (Elev. 623 ft)
39.04°N 90.33°W (Elev. 623 ft)
10:37 pm CDT May 19, 2025
11pm CDT May 19, 2025-6pm CDT May 26, 2025