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St. Charles, MO

63°F
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St. Charles

Missouri

63°
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St. Charles, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 PM

64°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 3%
Chevron down
Mostly sunny
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

RealFeel Shade™63°

WindW 7 mph

Air QualityFair

Max UV Index9.1 (Very High)

Wind Gusts9 mph

Humidity30%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

65°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 6%
Chevron down
Intermittent clouds
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

RealFeel Shade™63°

WindW 7 mph

Air QualityFair

Max UV Index6.8 (High)

Wind Gusts10 mph

Humidity29%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover64%

Visibility10 mi

Cloud Ceiling23500 ft

3 PM

66°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 6%
Chevron down
Intermittent clouds
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

RealFeel Shade™63°

WindW 8 mph

Air QualityFair

Max UV Index4.1 (Moderate)

Wind Gusts12 mph

Humidity29%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling17000 ft

4 PM

66°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 5%
Chevron down
Intermittent clouds
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

RealFeel Shade™63°

WindW 8 mph

Air QualityFair

Max UV Index2.4 (Low)

Wind Gusts13 mph

Humidity31%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10500 ft

5 PM

65°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 4%
Chevron down
Intermittent clouds
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

RealFeel Shade™63°

WindW 8 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts14 mph

Humidity34%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10300 ft

6 PM

64°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 4%
Chevron down
Intermittent clouds
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

RealFeel Shade™63°

WindWSW 8 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts13 mph

Humidity38%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10100 ft

7 PM

61°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

RealFeel Shade™59°

WindWSW 8 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts13 mph

Humidity45%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling9900 ft

8 PM

61°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

WindWNW 7 mph

Air QualityFair

Wind Gusts13 mph

Humidity49%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling8800 ft

9 PM

58°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 56%
Chevron down
Showers
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

WindNW 8 mph

Air QualityFair

Wind Gusts12 mph

Humidity61%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Rain0.03 in

Visibility6 mi

Cloud Ceiling4000 ft

10 PM

56°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Showers
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

WindNW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity72%

Indoor Humidity46% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Rain0.01 in

Visibility10 mi

Cloud Ceiling6500 ft

11 PM

54°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 21%
Chevron down
Cloudy
alerts

Flood Warning

7:00 PM Sunday - 10:00 PM Monday
alerts

Flood Warning

6:24 AM Thursday - 3:00 PM Saturday

WindNNW 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity77%

Indoor Humidity46% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling6400 ft

Hourly Weather Forecast for St. Charles

AccuWeather's hourly forecast for St. Charles provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 64° with a RealFeel® of 75°, mostly sunny with a 3% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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Weather Near St. Charles:

  • O'Fallon, MO
  • Springfield, IL
  • St. Louis, MO
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