Hourly Weather Forecast - Lake Saint Louis, MO

7 AM
47°F
0%
2mph
ESE
Mostly Cloudy
Humidity
91%
Feels like
47°F
Dew Point
45°F
7:20 AM
8 AM
49°F
0%
3mph
SE
Mostly Cloudy
Humidity
90%
Feels like
49°F
Dew Point
47°F
9 AM
52°F
0%
3mph
SE
Mostly Cloudy
Humidity
87%
Feels like
52°F
Dew Point
48°F
10 AM
54°F
0%
4mph
SE
Mostly Cloudy
Humidity
84%
Feels like
54°F
Dew Point
49°F
11 AM
56°F
0%
4mph
SE
Mostly Cloudy
Humidity
81%
Feels like
56°F
Dew Point
50°F
12 PM
58°F
0%
4mph
SE
Mostly Cloudy
Humidity
79%
Feels like
58°F
Dew Point
52°F
1 PM
60°F
0%
4mph
SE
Mostly Cloudy
Humidity
77%
Feels like
60°F
Dew Point
53°F
2 PM
62°F
0%
5mph
SE
Mostly Cloudy
Humidity
75%
Feels like
62°F
Dew Point
54°F
3 PM
62°F
0%
5mph
SE
Mostly Cloudy
Humidity
77%
Feels like
62°F
Dew Point
54°F
4 PM
61°F
10%
5mph
SE
Mostly Cloudy
Humidity
80%
Feels like
61°F
Dew Point
54°F
4:48 PM
5 PM
60°F
10%
5mph
SE
Mostly Cloudy
Humidity
83%
Feels like
60°F
Dew Point
55°F
6 PM
59°F
10%
4mph
SSE
Cloudy
Humidity
85%
Feels like
59°F
Dew Point
55°F
7 PM
60°F
0%
4mph
SSE
Cloudy
Humidity
86%
Feels like
60°F
Dew Point
56°F
8 PM
61°F
0%
4mph
SSE
Cloudy
Humidity
87%
Feels like
61°F
Dew Point
57°F
9 PM
62°F
0%
4mph
S
Cloudy
Humidity
88%
Feels like
62°F
Dew Point
58°F
10 PM
62°F
10%
4mph
S
Cloudy
Humidity
88%
Feels like
62°F
Dew Point
59°F
11 PM
62°F
10%
4mph
S
Cloudy
Humidity
89%
Feels like
62°F
Dew Point
59°F

Snow Forecast Through Monday

Powerful Winter Storm Taking Shape Across the Upper Midwest

A major winter storm is taking aim at the Upper Midwest and Great Lakes.

Today's Weather Outlook

Weekend Weather Outlook

Satellite image of Hurricane Melissa

2025 Year in Review: Powerful Hurricanes in the Atlantic

A frame from an automated video of a tornado and its mesocyclone that derailed multiple train cars near Enderlin, North Dakota and destroyed multiple homes on June 20, 2025. (ChrisWx via Wikimedia Commons)

2025 Year in Review: Extreme Weather - January through June

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Hurricane Erick at its peak intensity before making landfall on Guerrero, Mexico on June 19, 2025 (NOAA/Wikimedia Commons)

2025 Year in Review: Active Tropical Season for The Pacific

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide