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Flat River, MO

77°F
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Flat River

Missouri

77°
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Flat River, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 PM

79°
RealFeel® 86°
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 57%
Chevron down
Thunderstorms
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™82°

Heat Index83°

WindSSW 10 mph

Air QualityFair

Max UV Index3.3 (Moderate)

Wind Gusts15 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.01 in

Visibility10 mi

Cloud Ceiling12300 ft

2 PM

80°
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 67%
Chevron down
Thunderstorms
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™82°

Heat Index84°

WindSW 9 mph

Air QualityFair

Max UV Index2.9 (Moderate)

Wind Gusts16 mph

Humidity78%

Indoor Humidity78% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility10 mi

Cloud Ceiling12100 ft

3 PM

78°
RealFeel® 82°
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 74%
Chevron down
Thunderstorms
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™80°

Heat Index80°

WindSW 9 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts16 mph

Humidity89%

Indoor Humidity89% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

4 PM

79°
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 49%
Chevron down
Cloudy
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™83°

Heat Index80°

WindSW 8 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts17 mph

Humidity82%

Indoor Humidity82% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling7100 ft

5 PM

79°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 59%
Chevron down
Thunderstorms
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™81°

Heat Index81°

WindSW 8 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts17 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

6 PM

79°
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 49%
Chevron down
Cloudy
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™83°

Heat Index80°

WindSW 8 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts15 mph

Humidity82%

Indoor Humidity82% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling20800 ft

7 PM

78°
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 47%
Chevron down
Mostly cloudy
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™84°

WindSSW 7 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts14 mph

Humidity85%

Indoor Humidity85% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling27700 ft

8 PM

77°
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 43%
Chevron down
Cloudy
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

RealFeel Shade™84°

WindSSE 6 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts10 mph

Humidity90%

Indoor Humidity90% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling23300 ft

9 PM

76°
RealFeel® 82°
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
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

WindSSE 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity93%

Indoor Humidity93% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling19000 ft

10 PM

73°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

WindSSE 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity99%

Indoor Humidity95% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

11 PM

74°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Cloudy
alerts

Flood Watch

12:54 PM Monday - 7:00 AM Tuesday

WindS 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity97%

Indoor Humidity95% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling4000 ft

Hourly Weather Forecast for Flat River

AccuWeather's hourly forecast for Flat River provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 79° with a RealFeel® of 86°, thunderstorms with a 57% 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 Flat River:

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