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St. Louis, MO

91°F
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St. Louis

Missouri

91°
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St. Louis, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 PM

92°
RealFeel® 107°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 29%
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Partly sunny
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

RealFeel Shade™98°

Heat Index103°

WindSSW 8 mph

Air QualityPoor

Max UV Index8.9 (Very High)

Wind Gusts9 mph

Humidity56%

Indoor Humidity56% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover30%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

93°
RealFeel® 107°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 20%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

RealFeel Shade™99°

Heat Index104°

WindSSW 7 mph

Air QualityPoor

Max UV Index8.1 (Very High)

Wind Gusts9 mph

Humidity54%

Indoor Humidity54% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover35%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

94°
RealFeel® 107°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 20%
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Intermittent clouds
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

RealFeel Shade™100°

Heat Index105°

WindS 7 mph

Air QualityPoor

Max UV Index5.2 (Moderate)

Wind Gusts8 mph

Humidity52%

Indoor Humidity52% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

95°
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 20%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

RealFeel Shade™101°

Heat Index106°

WindS 7 mph

Air QualityPoor

Max UV Index4.2 (Moderate)

Wind Gusts9 mph

Humidity51%

Indoor Humidity51% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover41%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

94°
RealFeel® 105°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 20%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

RealFeel Shade™100°

Heat Index105°

WindSSE 7 mph

Air QualityPoor

Max UV Index2.8 (Moderate)

Wind Gusts8 mph

Humidity53%

Indoor Humidity53% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover37%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

93°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 20%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

RealFeel Shade™100°

Heat Index105°

WindSE 7 mph

Air QualityPoor

Max UV Index1.7 (Low)

Wind Gusts8 mph

Humidity58%

Indoor Humidity58% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover29%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

91°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 13%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

RealFeel Shade™101°

Heat Index104°

WindESE 7 mph

Air QualityPoor

Max UV Index0.7 (Low)

Wind Gusts8 mph

Humidity63%

Indoor Humidity63% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover20%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

89°
RealFeel® 100°
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 0%
Chevron down
Partly cloudy
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

Heat Index102°

WindSE 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity70%

Indoor Humidity70% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

86°
RealFeel® 97°
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 0%
Chevron down
Partly cloudy
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

Heat Index98°

WindSE 7 mph

Air QualityPoor

Wind Gusts12 mph

Humidity76%

Indoor Humidity76% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

83°
RealFeel® 94°
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 0%
Chevron down
Partly cloudy
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

Heat Index93°

WindSE 6 mph

Air QualityPoor

Wind Gusts10 mph

Humidity83%

Indoor Humidity83% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

82°
RealFeel® 93°
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 0%
Chevron down
Partly cloudy
alerts

Extreme Heat Warning

12:00 PM Sunday - 9:00 PM Saturday

Heat Index90°

WindSSE 6 mph

Air QualityPoor

Wind Gusts9 mph

Humidity85%

Indoor Humidity85% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for St. Louis

AccuWeather's hourly forecast for St. Louis provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 92° with a RealFeel® of 107°, partly sunny with a 29% 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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  • O'Fallon, MO
  • Springfield, IL
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