Weather for St Charles, Missouri
Current Weather
Five Day Weather Forecast
Sun
H: 86°F
L: 53°F
Mon
H: 85°F
L: 61°F
Tue
H: 70°F
L: 48°F
Wed
H: 65°F
L: 51°F
Thu
H: 67°F
L: 47°F
Air Quality
Nitrogen Dioxide: 12.85 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 113 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
Flood Warning issued April 25 at 9:06PM CDT until May 1 at 7:00AM CDT by NWS St Louis MO
Effective: Sat April 25, 2026, 9:06 PM
Expires: Mon April 27, 2026, 9:15 AM
...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Clarksville. Mississippi River at Louisiana. Mississippi River at Grafton. Illinois River at Hardin. Mississippi River at Hannibal. 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. * IMPACTS...At 21.0 feet, Water begins flooding the floor at the Palisades Marina in Portage Des Sioux. Access to homes along North Shore Drive in eastern St. Charles County becomes cut off near this height. * ADDITIONAL DETAILS... - At 8:30 PM CDT Saturday the stage was 20.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Saturday was 20.6 feet. - Forecast...The river is expected to rise to a crest of 20.5 feet just after midnight tonight. It will then 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 26 at 11:09AM CDT until May 1 at 1:00PM CDT by NWS St Louis MO
Effective: Sun April 26, 2026, 11:09 AM
Expires: Mon April 27, 2026, 11:15 PM
...The Flood Warning is extended for the following river in Missouri and Illinois... Mississippi River at Grafton. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. 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 afternoon. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 20.4 feet. - Forecast...The river is expected to rise to a crest of 20.4 feet this afternoon. - Flood stage is 20.0 feet.
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Flood Warning issued April 25 at 9:06PM CDT until May 3 at 7:00AM CDT by NWS St Louis MO
Effective: Sat April 25, 2026, 9:06 PM
Expires: Mon April 27, 2026, 9:15 AM
...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Clarksville. Mississippi River at Louisiana. Mississippi River at Grafton. Illinois River at Hardin. Mississippi River at Hannibal. 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. * IMPACTS...At 25.0 feet, Flood Stage. Lowland flooding of unprotected agricultural land begins. * ADDITIONAL DETAILS... - At 8:30 PM CDT Saturday the stage was 26.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Saturday was 26.4 feet. - Forecast...The river is expected to rise to a crest of 26.3 feet just after midnight tonight. It will then fall below flood stage Saturday, May 02. - 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 26 at 10:19AM CDT by NWS St Louis MO
Effective: Sun April 26, 2026, 10:19 AM
Expires: Mon April 27, 2026, 10:30 PM
...The Flood Warning is extended 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 further notice. * ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday the stage was 26.2 feet. - Forecast...The river is expected to fall slowly to near 26.0 feet Tuesday 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 9:06PM CDT until May 3 at 11:00AM CDT by NWS St Louis MO
Effective: Sat April 25, 2026, 9:06 PM
Expires: Mon April 27, 2026, 9:15 AM
...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Clarksville. Mississippi River at Louisiana. Mississippi River at Grafton. Illinois River at Hardin. Mississippi River at Hannibal. 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 Sunday, May 03. * IMPACTS...At 29.0 feet, Water enters the parking lot entrance at the Clarksville Riverfront Park. * ADDITIONAL DETAILS... - At 8:30 PM CDT Saturday the stage was 28.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Saturday was 28.3 feet. - Forecast...The river is expected to fall below flood stage Saturday, May 02 and continue falling to 24.4 feet Saturday, May 02. - 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: 10.17 μg/m3
Sulphur Dioxide: 3.93 μg/m3
Ozone: 93.36 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: 7.86 μg/m3
Sulphur Dioxide: 4.13 μg/m3
Ozone: 92.52 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: 6.25 μg/m3
Sulphur Dioxide: 2.27 μg/m3
Ozone: 87.08 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: 6.56 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 89 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
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.58 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 73.23 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:53 PM
Daylight: 13 hrs 48 mins
Moon Transit: 12:00 AM
Moonset: 5:12 AM
Moon Phase: Full
Moon Illumination: 99.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:35 AM - 2:05 PM
Minor Periods
6:47 PM - 8:17 PM4:42 AM - 6:12 AM
Action Rating: 5 out of 5