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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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10 AM

66°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™63°

WindESE 9 mph

Air QualityFair

Max UV Index4.2 (Moderate)

Wind Gusts13 mph

Humidity64%

Indoor Humidity61% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover5%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

71°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™68°

WindESE 9 mph

Air QualityFair

Max UV Index5.9 (High)

Wind Gusts14 mph

Humidity55%

Indoor Humidity55% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

74°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™71°

WindSE 10 mph

Air QualityFair

Max UV Index7.9 (Very High)

Wind Gusts15 mph

Humidity48%

Indoor Humidity48% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover41%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

77°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™74°

WindSE 10 mph

Air QualityFair

Max UV Index7.3 (High)

Wind Gusts16 mph

Humidity43%

Indoor Humidity43% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling24200 ft

2 PM

78°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™75°

WindSE 12 mph

Air QualityFair

Max UV Index5.2 (Moderate)

Wind Gusts16 mph

Humidity41%

Indoor Humidity41% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover80%

Visibility10 mi

Cloud Ceiling24200 ft

3 PM

80°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™76°

WindSE 12 mph

Air QualityFair

Max UV Index3.3 (Moderate)

Wind Gusts15 mph

Humidity39%

Indoor Humidity39% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling24200 ft

4 PM

78°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™75°

WindSE 12 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts15 mph

Humidity41%

Indoor Humidity41% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling24200 ft

5 PM

78°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™75°

WindSE 12 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts15 mph

Humidity42%

Indoor Humidity42% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling26100 ft

6 PM

77°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™73°

WindSE 10 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts16 mph

Humidity45%

Indoor Humidity45% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling28100 ft

7 PM

75°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

RealFeel Shade™72°

WindSE 10 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts15 mph

Humidity49%

Indoor Humidity49% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover82%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

72°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

WindSE 10 mph

Air QualityFair

Wind Gusts15 mph

Humidity55%

Indoor Humidity55% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

70°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

WindSE 10 mph

Air QualityFair

Wind Gusts14 mph

Humidity59%

Indoor Humidity59% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

69°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

WindSE 10 mph

Air QualityFair

Wind Gusts13 mph

Humidity64%

Indoor Humidity64% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy
alerts

Flood Warning

7:00 PM Sunday - 7:00 AM Friday

WindSE 10 mph

Air QualityFair

Wind Gusts13 mph

Humidity65%

Indoor Humidity65% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling26300 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 66° with a RealFeel® of 69°, sunny with a 0% 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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