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Lake St. Louis, MO

64°F
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Lake St. Louis

Missouri

64°
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Lake St. Louis, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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8 PM

70°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 25%
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Cloudy
alerts

Flash Flood Warning

5:12 PM Monday - 8:15 PM Monday
alerts

Flood Watch

9:02 AM Monday - 1:00 PM Tuesday

RealFeel Shade™69°

WindS 12 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts13 mph

Humidity88%

Indoor Humidity88% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling26400 ft

9 PM

71°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy
alerts

Flood Watch

9:02 AM Monday - 1:00 PM Tuesday

WindS 10 mph

Air QualityFair

Wind Gusts14 mph

Humidity88%

Indoor Humidity88% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling28200 ft

10 PM

71°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy
alerts

Flood Watch

9:02 AM Monday - 1:00 PM Tuesday

WindS 10 mph

Air QualityFair

Wind Gusts15 mph

Humidity88%

Indoor Humidity88% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

71°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy
alerts

Flood Watch

9:02 AM Monday - 1:00 PM Tuesday

WindS 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity89%

Indoor Humidity89% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Lake St. Louis

AccuWeather's hourly forecast for Lake St. Louis provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 70° with a RealFeel® of 69°, cloudy with a 25% 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 Lake St. Louis:

  • O'Fallon, MO
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