Hourly Weather Forecast - Herculaneum, MO

4 AM
31°F
0%
6mph
SSW
Mostly Cloudy
Humidity
87%
Feels like
24°F
Dew Point
27°F
5 AM
31°F
0%
6mph
SSW
Mostly Cloudy
Humidity
87%
Feels like
25°F
Dew Point
28°F
6 AM
33°F
0%
7mph
SSW
Cloudy
Humidity
85%
Feels like
26°F
Dew Point
28°F
7 AM
35°F
0%
7mph
SW
Partly Cloudy
Humidity
81%
Feels like
29°F
Dew Point
29°F
7:06 AM
8 AM
37°F
0%
7mph
SW
Mostly Sunny
Humidity
82%
Feels like
32°F
Dew Point
32°F
9 AM
40°F
0%
7mph
SW
Sunny
Humidity
81%
Feels like
35°F
Dew Point
35°F
10 AM
43°F
0%
8mph
SW
Sunny
Humidity
75%
Feels like
39°F
Dew Point
36°F
11 AM
47°F
0%
8mph
SW
Mostly Sunny
Humidity
67%
Feels like
43°F
Dew Point
37°F
12 PM
50°F
0%
9mph
SW
Mostly Sunny
Humidity
61%
Feels like
50°F
Dew Point
38°F
1 PM
53°F
0%
9mph
SW
Mostly Sunny
Humidity
57%
Feels like
53°F
Dew Point
38°F
2 PM
54°F
0%
9mph
SSW
Mostly Sunny
Humidity
55%
Feels like
54°F
Dew Point
38°F
3 PM
54°F
0%
9mph
SSW
Partly Cloudy
Humidity
55%
Feels like
54°F
Dew Point
38°F
4 PM
53°F
0%
10mph
SSW
Partly Cloudy
Humidity
57%
Feels like
53°F
Dew Point
38°F
4:41 PM
5 PM
51°F
0%
10mph
SSW
Mostly Cloudy
Humidity
59%
Feels like
51°F
Dew Point
37°F
6 PM
49°F
0%
11mph
SSW
Partly Cloudy
Humidity
61%
Feels like
45°F
Dew Point
36°F
7 PM
48°F
0%
11mph
SSW
Partly Cloudy
Humidity
63%
Feels like
43°F
Dew Point
36°F
8 PM
47°F
10%
12mph
SSW
Mostly Cloudy
Humidity
64%
Feels like
42°F
Dew Point
36°F
9 PM
47°F
10%
12mph
SSW
Cloudy
Humidity
64%
Feels like
41°F
Dew Point
35°F
10 PM
47°F
10%
11mph
SW
Cloudy
Humidity
64%
Feels like
42°F
Dew Point
35°F
11 PM
47°F
10%
11mph
SW
Cloudy
Humidity
62%
Feels like
42°F
Dew Point
35°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy, Flooding Rain Impacts the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide