Weather for St Charles, Missouri
Current Weather
Five Day Weather Forecast
Wed
H: 91°F
L: 62°F
Thu
H: 86°F
L: 66°F
Fri
H: 75°F
L: 65°F
Sat
H: 92°F
L: 70°F
Sun
H: 99°F
L: 76°F
Air Quality
Nitrogen Dioxide: 18.5 μg/m3
Sulphur Dioxide: 1.9 μg/m3
Ozone: 42 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moon Transit: 9:12 PM
Moonset: 1:45 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%
Best Times for Fishing or Hunting
Major Periods
8:16 AM - 10:46 AM8:42 PM - 11:12 PM
Minor Periods
3:35 PM - 5:05 PM1:15 AM - 2:45 AM
Action Rating: 3 out of 5
Flood Warning issued June 23 at 9:20PM CDT by NWS St Louis MO
Effective: Tue June 23, 2026, 9:20 PM
Expires: Thu June 25, 2026, 9:30 AM
...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. 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. * IMPACTS...At 25.0 feet, Flood Stage. Lowland flooding of unprotected agricultural land begins. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 26.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Tuesday was 26.7 feet. - Forecast...The river is expected to rise to a crest of 26.8 feet Friday 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: 13.77 μg/m3
Sulphur Dioxide: 3.06 μg/m3
Ozone: 70.17 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moon Transit: 9:12 PM
Moonset: 1:45 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%
Best Times for Fishing or Hunting
Major Periods
8:16 AM - 10:46 AM8:42 PM - 11:12 PM
Minor Periods
3:35 PM - 5:05 PM1:15 AM - 2:45 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 15.83 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 67.29 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moon Transit: 9:58 PM
Moonset: 2:12 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%
Best Times for Fishing or Hunting
Major Periods
9:01 AM - 11:31 AM9:28 PM - 11:58 PM
Minor Periods
4:37 PM - 6:07 PM1:42 AM - 3:12 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 18.13 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 53.33 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moon Transit: 10:46 PM
Moonset: 2:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%
Best Times for Fishing or Hunting
Major Periods
9:48 AM - 12:18 AM12:00 AM - 12:00 AM
Minor Periods
5:39 PM - 7:09 PM2:14 AM - 3:44 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.63 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 64.54 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moon Transit: 11:37 PM
Moonset: 3:21 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%
Best Times for Fishing or Hunting
Major Periods
10:37 AM - 1:07 PM12:00 AM - 12:00 AM
Minor Periods
6:37 PM - 8:07 PM2:51 AM - 4:21 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 12.39 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 30.88 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:31 PM
Daylight: 14 hrs 52 mins
Moon Transit: 12:00 AM
Moonset: 4:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:28 AM - 1:58 PM
Minor Periods
7:31 PM - 9:01 PM3:35 AM - 5:05 AM
Action Rating: 3 out of 5