Hourly Weather Forecast - Herculaneum, MO

12 PM
79°F
0%
6mph
W
Sunny
Humidity
43%
Feels like
79°F
Dew Point
55°F
1 PM
83°F
0%
6mph
W
Sunny
Humidity
36%
Feels like
82°F
Dew Point
53°F
2 PM
85°F
0%
7mph
W
Sunny
Humidity
33%
Feels like
84°F
Dew Point
53°F
3 PM
87°F
0%
7mph
W
Mostly Sunny
Humidity
30%
Feels like
84°F
Dew Point
52°F
4 PM
87°F
0%
7mph
W
Mostly Sunny
Humidity
29%
Feels like
84°F
Dew Point
51°F
5 PM
85°F
0%
6mph
W
Mostly Sunny
Humidity
30%
Feels like
83°F
Dew Point
50°F
6 PM
82°F
0%
4mph
W
Mostly Sunny
Humidity
35%
Feels like
81°F
Dew Point
52°F
7 PM
79°F
0%
3mph
WNW
Mostly Sunny
Humidity
39%
Feels like
79°F
Dew Point
52°F
7:13 PM
8 PM
75°F
0%
3mph
WNW
Mostly Clear
Humidity
45%
Feels like
75°F
Dew Point
52°F
9 PM
72°F
0%
2mph
NW
Mostly Clear
Humidity
49%
Feels like
72°F
Dew Point
52°F
10 PM
69°F
0%
2mph
NNW
Partly Cloudy
Humidity
55%
Feels like
69°F
Dew Point
52°F
11 PM
66°F
0%
2mph
NNW
Mostly Clear
Humidity
60%
Feels like
66°F
Dew Point
52°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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