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Tropical rainstorm brings torrential downpours and dangerous flash flooding to Louisiana Chevron right
Flash flood risk to focus on parts of central US. Get the forecast Chevron right

Frontenac, MO

75°F
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Frontenac, MO Weather
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Today

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 Daily Radar MinuteCast Monthly Air Quality Health & Activities

9 AM

77°
RealFeel® 85°
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 7%
Chevron down
Mostly cloudy

RealFeel Shade™82°

WindENE 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts7 mph

Humidity87%

Indoor Humidity87% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover77%

Visibility10 mi

Cloud Ceiling1600 ft

10 AM

78°
RealFeel® 85°
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 6%
Chevron down
Cloudy

RealFeel Shade™83°

WindENE 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts7 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling2000 ft

11 AM

80°
RealFeel® 89°
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%
Chevron down
Mostly cloudy

RealFeel Shade™85°

WindENE 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity77%

Indoor Humidity77% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling3100 ft

12 PM

79°
RealFeel® 92°
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 5%
Chevron down
Mostly cloudy

RealFeel Shade™86°

WindENE 6 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts7 mph

Humidity86%

Indoor Humidity86% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling2000 ft

1 PM

81°
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 8%
Chevron down
Cloudy

RealFeel Shade™87°

WindENE 6 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts7 mph

Humidity79%

Indoor Humidity79% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling4000 ft

2 PM

80°
RealFeel® 87°
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 75%
Chevron down
Thunderstorms

RealFeel Shade™84°

WindE 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity85%

Indoor Humidity85% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Rain0.26 in

Visibility3 mi

Cloud Ceiling2000 ft

3 PM

86°
RealFeel® 95°
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 49%
Chevron down
Cloudy

RealFeel Shade™92°

WindE 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity64%

Indoor Humidity64% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling6500 ft

4 PM

81°
RealFeel® 89°
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 75%
Chevron down
Thunderstorms

RealFeel Shade™89°

WindESE 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts7 mph

Humidity90%

Indoor Humidity90% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Rain0.26 in

Visibility3 mi

Cloud Ceiling2000 ft

5 PM

81°
RealFeel® 89°
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 31%
Chevron down
Cloudy

RealFeel Shade™87°

WindESE 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts7 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling12100 ft

6 PM

82°
RealFeel® 89°
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 25%
Chevron down
Cloudy

RealFeel Shade™89°

WindESE 7 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts8 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling17200 ft

7 PM

82°
RealFeel® 89°
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 31%
Chevron down
Cloudy

RealFeel Shade™89°

WindSE 7 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts8 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling22300 ft

8 PM

81°
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.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™88°

WindSE 6 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts7 mph

Humidity78%

Indoor Humidity78% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling24900 ft

9 PM

80°
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 51%
Chevron down
Thunderstorms

WindSE 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

10 PM

78°
RealFeel® 85°
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 47%
Chevron down
Cloudy

WindSE 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity85%

Indoor Humidity85% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

77°
RealFeel® 83°
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 32%
Chevron down
Cloudy

WindSSE 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity89%

Indoor Humidity89% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling24900 ft

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World North America United States Missouri Frontenac

Weather Near Frontenac:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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