Hourly Weather Forecast - Herculaneum, MO

12 AM
19°F
10%
2mph
NE
Mostly Clear
Humidity
68%
Feels like
19°F
Dew Point
10°F
1 AM
19°F
10%
2mph
NE
Mostly Clear
Humidity
67%
Feels like
19°F
Dew Point
10°F
2 AM
18°F
10%
2mph
NNE
Mostly Clear
Humidity
65%
Feels like
18°F
Dew Point
9°F
3 AM
18°F
10%
2mph
NNE
Mostly Clear
Humidity
65%
Feels like
18°F
Dew Point
8°F
4 AM
18°F
10%
2mph
NNE
Mostly Clear
Humidity
64%
Feels like
18°F
Dew Point
8°F
5 AM
17°F
10%
2mph
NNE
Clear
Humidity
66%
Feels like
17°F
Dew Point
8°F
6 AM
18°F
10%
2mph
NNE
Clear
Humidity
63%
Feels like
18°F
Dew Point
7°F
7 AM
19°F
10%
3mph
NNE
Clear
Humidity
61%
Feels like
19°F
Dew Point
8°F
7:10 AM
8 AM
20°F
10%
3mph
NNE
Sunny
Humidity
63%
Feels like
20°F
Dew Point
10°F
9 AM
22°F
10%
3mph
NNE
Sunny
Humidity
63%
Feels like
18°F
Dew Point
11°F
10 AM
24°F
10%
3mph
NNE
Sunny
Humidity
60%
Feels like
20°F
Dew Point
12°F
11 AM
26°F
10%
3mph
NE
Sunny
Humidity
57%
Feels like
26°F
Dew Point
13°F

Snowfall forecast Through Tonight

Snow To Spread Across Appalachians Into Mid-Atlantic

A winter system will bring snow from the southern Appalachians to Mid-Atlantic through this evening.

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.

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

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Image courtesy of PeakPX.

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Today's National Outlook

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