Weather for St Charles, Missouri
Current Weather
Five Day Weather Forecast
Thu
H: 98°F
L: 71°F
Fri
H: 82°F
L: 62°F
Sat
H: 83°F
L: 67°F
Sun
H: 76°F
L: 63°F
Mon
H: 80°F
L: 62°F
Air Quality
Nitrogen Dioxide: 7.4 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 45 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:27 PM
Daylight: 14 hrs 51 mins
Moon Transit: 9:32 AM
Moonset: 4:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%
Best Times for Fishing or Hunting
Major Periods
9:25 PM - 11:55 PM9:02 AM - 11:32 AM
Minor Periods
4:17 PM - 5:47 PM2:02 AM - 3:32 AM
Action Rating: 2 out of 5
Flood Warning issued June 10 at 11:08AM CDT until June 12 at 4:00AM CDT by NWS St Louis MO
Effective: Wed June 10, 2026, 11:08 AM
Expires: Thu June 11, 2026, 11:15 PM
...The Flood Warning is extended for the following rivers in Missouri... Missouri River at St. Charles. Missouri River at Hermann. Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Osage River near Mari-Osa Campground. ...The Flood Warning is cancelled for the following rivers in Missouri... Missouri River at Washington. 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...Missouri River at St. Charles. * WHEN...Until late Thursday night. * IMPACTS...At 27.0 feet, The Katy Trail begins flooding near this height along Hawning Road, about 2 miles north northeast of the Highway 370 bridge. * ADDITIONAL DETAILS... - At 11:00 AM CDT Wednesday the stage was 26.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Wednesday was 27.2 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 19.7 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
Tornado Watch issued June 10 at 4:02PM CDT until June 10 at 11:00PM CDT by NWS St Louis MO
Effective: Wed June 10, 2026, 4:02 PM
Expires: Wed June 10, 2026, 11:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 305 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 4 COUNTIES IN SOUTHWEST ILLINOIS CALHOUN IN WEST CENTRAL ILLINOIS ADAMS BROWN PIKE IN MISSOURI THIS WATCH INCLUDES 9 COUNTIES IN CENTRAL MISSOURI AUDRAIN IN EAST CENTRAL MISSOURI LINCOLN IN NORTHEAST MISSOURI KNOX LEWIS MARION MONROE PIKE RALLS SHELBY THIS INCLUDES THE CITIES OF BOWLING GREEN, HANNIBAL, MEXICO, MOUNT STERLING, PITTSFIELD, AND QUINCY.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.8 μg/m3
Sulphur Dioxide: 2.21 μg/m3
Ozone: 67.42 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:27 PM
Daylight: 14 hrs 51 mins
Moon Transit: 9:32 AM
Moonset: 4:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%
Best Times for Fishing or Hunting
Major Periods
9:25 PM - 11:55 PM9:02 AM - 11:32 AM
Minor Periods
4:17 PM - 5:47 PM2:02 AM - 3:32 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.54 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 75.75 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:28 PM
Daylight: 14 hrs 52 mins
Moon Transit: 10:28 AM
Moonset: 6:05 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:58 AM - 12:28 AM
Minor Periods
5:35 PM - 7:05 PM2:34 AM - 4:04 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 12.75 μg/m3
Sulphur Dioxide: 2.52 μg/m3
Ozone: 71.96 μg/m3
Astronomical
Sun Transit: 1:02 PM
Sunset: 8:28 PM
Daylight: 14 hrs 52 mins
Moon Transit: 11:29 AM
Moonset: 7:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:59 AM - 1:29 PM
Minor Periods
6:53 PM - 8:23 PM3:15 AM - 4:45 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.21 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 68.54 μg/m3
Astronomical
Sun Transit: 1:02 PM
Sunset: 8:29 PM
Daylight: 14 hrs 52 mins
Moon Transit: 12:36 AM
Moonset: 8:38 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:06 AM - 2:36 PM
Minor Periods
8:08 PM - 9:38 PM4:08 AM - 5:38 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 22.89 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 26.25 μg/m3
Astronomical
Sun Transit: 1:02 PM
Sunset: 8:29 PM
Daylight: 14 hrs 53 mins
Moon Transit: 1:44 PM
Moonset: 9:42 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
12:36 AM - 3:06 AM1:14 PM - 3:44 PM
Minor Periods
9:12 PM - 10:42 PM5:12 AM - 6:42 AM
Action Rating: 4 out of 5