Weather for St Charles, Missouri
Current Weather
Five Day Weather Forecast
Sat
H: 82°F
L: 53°F
Sun
H: 78°F
L: 54°F
Mon
H: 84°F
L: 61°F
Tue
H: 71°F
L: 50°F
Wed
H: 65°F
L: 49°F
Air Quality
Nitrogen Dioxide: 8.95 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 77 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:49 PM
Daylight: 13 hrs 37 mins
Moon Transit: 8:56 PM
Moonset: 3:15 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%
Best Times for Fishing or Hunting
Major Periods
7:59 AM - 10:29 AM8:26 PM - 10:56 PM
Minor Periods
1:30 PM - 3:00 PM2:45 AM - 4:15 AM
Action Rating: 2 out of 5
Flood Warning issued April 25 at 10:18AM CDT until May 1 at 7:00AM CDT by NWS St Louis MO
Effective: Sat April 25, 2026, 10:18 AM
Expires: Sun April 26, 2026, 10:30 PM
...The Flood Warning is extended for the following river in Missouri and Illinois... Mississippi River at Grafton. ...The Flood Warning continues for the following river in Missouri and Illinois... Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Grafton. * WHEN...Until Friday morning. * ADDITIONAL DETAILS... - At 10:00 AM CDT Saturday the stage was 20.5 feet. - Forecast...The river is expected to fall below flood stage early Thursday morning. - Flood stage is 20.0 feet.
Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Flood Warning issued April 25 at 10:12AM CDT until May 3 at 7:00AM CDT by NWS St Louis MO
Effective: Sat April 25, 2026, 10:12 AM
Expires: Sun April 26, 2026, 10:15 PM
...The Flood Warning continues for the following river in Illinois... Illinois River at Hardin. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Hardin. * WHEN...Until Sunday, May 03. * ADDITIONAL DETAILS... - At 10:00 AM CDT Saturday the stage was 26.3 feet. - Forecast...The river is expected to fall slowly to near 26.2 feet Monday morning. - Flood stage is 25.0 feet.
Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Flood Warning issued April 25 at 10:18AM CDT until May 3 at 7:00AM CDT by NWS St Louis MO
Effective: Sat April 25, 2026, 10:18 AM
Expires: Sun April 26, 2026, 10:30 PM
...The Flood Warning is extended for the following river in Missouri and Illinois... Mississippi River at Grafton. ...The Flood Warning continues for the following river in Missouri and Illinois... Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Winfield. * WHEN...Until Sunday, May 03. * IMPACTS...At 28.3 feet, Near this height, Lakeview Drive becomes impassable and Kampville Road begins flooding in northern St. Charles County. * ADDITIONAL DETAILS... - At 10:00 AM CDT Saturday the stage was 28.3 feet. - Forecast...The river is expected to slowly fall to near 28.2 feet Monday morning. - Flood stage is 26.0 feet.
Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Flood Warning issued April 25 at 10:18AM CDT by NWS St Louis MO
Effective: Sat April 25, 2026, 10:18 AM
Expires: Sun April 26, 2026, 10:30 PM
...The Flood Warning is extended for the following river in Missouri and Illinois... Mississippi River at Grafton. ...The Flood Warning continues for the following river in Missouri and Illinois... Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 10:00 AM CDT Saturday the stage was 28.2 feet. - Forecast...The river is expected to fall slowly to near 27.9 feet Monday morning. - Flood stage is 25.0 feet.
Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.32 μg/m3
Sulphur Dioxide: 2.81 μg/m3
Ozone: 75.04 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:49 PM
Daylight: 13 hrs 37 mins
Moon Transit: 8:56 PM
Moonset: 3:15 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%
Best Times for Fishing or Hunting
Major Periods
7:59 AM - 10:29 AM8:26 PM - 10:56 PM
Minor Periods
1:30 PM - 3:00 PM2:45 AM - 4:15 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.9 μg/m3
Sulphur Dioxide: 4.46 μg/m3
Ozone: 93.28 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:50 PM
Daylight: 13 hrs 39 mins
Moon Transit: 9:41 PM
Moonset: 3:42 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%
Best Times for Fishing or Hunting
Major Periods
8:45 AM - 11:15 AM9:11 PM - 11:41 PM
Minor Periods
2:36 PM - 4:06 PM3:12 AM - 4:42 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.42 μg/m3
Sulphur Dioxide: 5.69 μg/m3
Ozone: 99.4 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:50 PM
Daylight: 13 hrs 41 mins
Moon Transit: 10:23 PM
Moonset: 4:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%
Best Times for Fishing or Hunting
Major Periods
9:28 AM - 11:58 AM12:00 AM - 12:00 AM
Minor Periods
3:40 PM - 5:10 PM3:35 AM - 5:05 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.47 μg/m3
Sulphur Dioxide: 2.08 μg/m3
Ozone: 80.48 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:51 PM
Daylight: 13 hrs 44 mins
Moon Transit: 11:05 PM
Moonset: 4:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%
Best Times for Fishing or Hunting
Major Periods
10:10 AM - 12:40 AM12:00 AM - 12:00 AM
Minor Periods
4:42 PM - 6:12 PM3:57 AM - 5:27 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.8 μg/m3
Sulphur Dioxide: 2.28 μg/m3
Ozone: 74.85 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:52 PM
Daylight: 13 hrs 46 mins
Moon Transit: 11:47 PM
Moonset: 4:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.5%
Best Times for Fishing or Hunting
Major Periods
10:52 AM - 1:22 PM12:00 AM - 12:00 AM
Minor Periods
5:45 PM - 7:15 PM4:19 AM - 5:49 AM
Action Rating: 3 out of 5