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Hurricane season starts in 67 days. Here's what AccuWeather experts are saying about the forecast. Chevron right
Thursday severe weather threat predicted in 6 states. See the latest forecast. Chevron right

St. Charles, MO

97°F
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St. Charles

Missouri

97°
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St. Charles, MO Weather
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5 PM

93°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 2%
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Partly sunny

RealFeel Shade™89°

WindSW 15 mph

Air QualityPoor

Max UV Index2.0 (Low)

Wind Gusts27 mph

Humidity32%

Indoor Humidity32% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover32%

Visibility10 mi

Cloud Ceiling33400 ft

6 PM

91°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
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rain drop 2%
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Intermittent clouds

RealFeel Shade™88°

WindSW 12 mph

Air QualityPoor

Max UV Index0.8 (Low)

Wind Gusts22 mph

Humidity34%

Indoor Humidity34% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover69%

Visibility10 mi

Cloud Ceiling22700 ft

7 PM

87°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 5%
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Cloudy

RealFeel Shade™84°

WindSW 10 mph

Air QualityPoor

Max UV Index0.0 (Low)

Wind Gusts17 mph

Humidity38%

Indoor Humidity38% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling19000 ft

8 PM

83°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 49%
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Cloudy

WindWSW 9 mph

Air QualityPoor

Wind Gusts10 mph

Humidity44%

Indoor Humidity44% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling16200 ft

9 PM

80°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindW 9 mph

Air QualityPoor

Wind Gusts10 mph

Humidity50%

Indoor Humidity50% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling13300 ft

10 PM

75°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 61%
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Thunderstorms

WindWNW 9 mph

Air QualityPoor

Wind Gusts16 mph

Humidity74%

Indoor Humidity74% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover96%

Rain0.26 in

Visibility3 mi

Cloud Ceiling2000 ft

11 PM

69°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 28%
Chevron down
Cloudy

WindNNW 13 mph

Air QualityFair

Wind Gusts17 mph

Humidity75%

Indoor Humidity75% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling2000 ft

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World North America United States Missouri St. Charles

Weather Near St. Charles:

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