Weather for St Charles, Missouri
Current Weather
Humidity: 47%
Feels Like: 31.6°F
Wind: ESE 4 mph
Wind Gusts: 6.4 mph
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast
Fri
H: 41°F
L: 24°F
Sat
H: 37°F
L: 31°F
Sun
H: 29°F
L: 24°F
Mon
H: 28°F
L: 22°F
Tue
H: 29°F
L: 21°F
Air Quality
Nitrogen Dioxide: 18.65 μg/m3
Sulphur Dioxide: 5.15 μg/m3
Ozone: 40 μg/m3
Astronomical
Sun Transit: 11:50 AM
Sunset: 4:41 PM
Daylight: 9 hrs 43 mins
Moon Transit: 6:37 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%
Best Times for Fishing or Hunting
Major Periods
5:41 AM - 8:11 AM6:07 PM - 8:37 PM
Minor Periods
12:20 AM - 1:50 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Winter Weather Advisory issued November 28 at 2:17AM CST until November 30 at 12:00AM CST by NWS St Louis MO
Effective: Fri November 28, 2025, 2:17 AM
Expires: Fri November 28, 2025, 5:30 PM
* WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. * WHERE...Portions of south central and southwest Illinois and east central and northeast Missouri. * WHEN...From midnight tonight to midnight CST Saturday Night. * IMPACTS...Plan on slippery road conditions.
Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636.
Winter Weather Advisory issued November 28 at 2:17AM CST until November 30 at 12:00AM CST by NWS St Louis MO
Effective: Fri November 28, 2025, 2:17 AM
Expires: Fri November 28, 2025, 5:30 PM
* WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. * WHERE...Portions of south central and southwest Illinois and central and east central Missouri. * WHEN...From midnight tonight to midnight CST Saturday Night. * IMPACTS...Plan on slippery road conditions.
Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636.
Winter Storm Warning issued November 28 at 2:17AM CST until November 30 at 12:00AM CST by NWS St Louis MO
Effective: Fri November 28, 2025, 2:17 AM
Expires: Fri November 28, 2025, 5:30 PM
* WHAT...Heavy snow expected. Total snow accumulations between 4 and 6 inches. * WHERE...Portions of south central, southwest, and west central Illinois and northeast Missouri. * WHEN...From midnight tonight to midnight CST Saturday Night. * IMPACTS...Travel could be very difficult.
The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636.
Weather Forecast
Average Temperature: 31.4°F
Average Humidity: 63%
Wind: 9.2 mph
UV Index: 0.4
Air Quality
Nitrogen Dioxide: 12.36 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 51.12 μg/m3
Astronomical
Sun Transit: 11:50 AM
Sunset: 4:41 PM
Daylight: 9 hrs 43 mins
Moon Transit: 6:37 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%
Best Times for Fishing or Hunting
Major Periods
5:41 AM - 8:11 AM6:07 PM - 8:37 PM
Minor Periods
12:20 AM - 1:50 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 33.5°F
Average Humidity: 88%
Wind: 18.8 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 17.26 μg/m3
Sulphur Dioxide: 4.96 μg/m3
Ozone: 45.96 μg/m3
Astronomical
Sun Transit: 11:50 AM
Sunset: 4:41 PM
Daylight: 9 hrs 42 mins
Moon Transit: 8:12 PM
Moonset: 12:36 AM
Moon Phase: First Quarter
Moon Illumination: 68.7%
Best Times for Fishing or Hunting
Major Periods
6:26 AM - 8:56 AM7:42 PM - 10:12 PM
Minor Periods
12:44 AM - 2:14 PM12:06 AM - 1:36 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 27.3°F
Average Humidity: 83%
Wind: 19.7 mph
UV Index: 0.4
Air Quality
Nitrogen Dioxide: 7 μg/m3
Sulphur Dioxide: 2.27 μg/m3
Ozone: 62.6 μg/m3
Astronomical
Sun Transit: 11:50 AM
Sunset: 4:41 PM
Daylight: 9 hrs 40 mins
Moon Transit: 8:11 PM
Moonset: 1:45 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM7:41 PM - 10:11 PM
Minor Periods
1:08 PM - 2:38 PM1:15 AM - 2:45 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 25°F
Average Humidity: 88%
Wind: 6.7 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 10.74 μg/m3
Sulphur Dioxide: 4.17 μg/m3
Ozone: 61.48 μg/m3
Astronomical
Sun Transit: 11:51 AM
Sunset: 4:41 PM
Daylight: 9 hrs 39 mins
Moon Transit: 9:03 PM
Moonset: 2:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%
Best Times for Fishing or Hunting
Major Periods
8:02 AM - 10:32 AM8:33 PM - 11:03 PM
Minor Periods
1:36 PM - 3:06 PM2:27 AM - 3:57 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 25.7°F
Average Humidity: 93%
Wind: 7.4 mph
UV Index: 0.4
Air Quality
Nitrogen Dioxide: 20.4 μg/m3
Sulphur Dioxide: 9.36 μg/m3
Ozone: 38.77 μg/m3
Astronomical
Sun Transit: 11:51 AM
Sunset: 4:41 PM
Daylight: 9 hrs 38 mins
Moon Transit: 10:00 PM
Moonset: 4:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.7%
Best Times for Fishing or Hunting
Major Periods
8:56 AM - 11:26 AM12:00 AM - 12:00 AM
Minor Periods
2:09 PM - 3:39 PM3:44 AM - 5:14 AM
Action Rating: 2 out of 5