Hourly Weather Forecast - Herculaneum, MO

12 AM
45°F
0%
2mph
E
Partly Cloudy
Humidity
62%
Feels like
45°F
Dew Point
33°F
1 AM
44°F
0%
2mph
ESE
Mostly Cloudy
Humidity
64%
Feels like
44°F
Dew Point
32°F
2 AM
43°F
0%
2mph
ESE
Mostly Cloudy
Humidity
66%
Feels like
43°F
Dew Point
32°F
3 AM
42°F
0%
2mph
SE
Mostly Cloudy
Humidity
67%
Feels like
42°F
Dew Point
32°F
4 AM
41°F
0%
2mph
SE
Mostly Cloudy
Humidity
68%
Feels like
41°F
Dew Point
32°F
5 AM
40°F
0%
3mph
SE
Mostly Cloudy
Humidity
71%
Feels like
40°F
Dew Point
32°F
6 AM
40°F
0%
3mph
SE
Partly Cloudy
Humidity
72%
Feels like
38°F
Dew Point
31°F
6:59 AM
7 AM
40°F
0%
4mph
SE
Partly Cloudy
Humidity
73%
Feels like
38°F
Dew Point
32°F
8 AM
42°F
10%
4mph
SE
Partly Cloudy
Humidity
70%
Feels like
40°F
Dew Point
33°F
9 AM
46°F
10%
4mph
SE
Partly Cloudy
Humidity
66%
Feels like
44°F
Dew Point
35°F
10 AM
50°F
0%
4mph
SSE
Partly Cloudy
Humidity
60%
Feels like
48°F
Dew Point
36°F
11 AM
53°F
0%
4mph
SSE
Partly Cloudy
Humidity
53%
Feels like
53°F
Dew Point
36°F
12 PM
56°F
10%
5mph
SSE
Mostly Cloudy
Humidity
48%
Feels like
56°F
Dew Point
36°F
1 PM
58°F
20%
5mph
SSE
Mostly Cloudy
Humidity
44%
Feels like
58°F
Dew Point
36°F
2 PM
60°F
30%
4mph
S
30% Chance of Light Rain
Humidity
42%
Feels like
60°F
Dew Point
36°F
3 PM
60°F
40%
4mph
S
40% Chance of Light Rain
Humidity
40%
Feels like
60°F
Dew Point
36°F
4 PM
61°F
40%
4mph
S
40% Chance Rain Showers
Humidity
40%
Feels like
61°F
Dew Point
36°F
5 PM
60°F
40%
3mph
SSE
40% Chance Rain Showers
Humidity
40%
Feels like
60°F
Dew Point
36°F
6 PM
58°F
40%
3mph
SE
40% Chance Rain Showers
Humidity
45%
Feels like
58°F
Dew Point
37°F
7 PM
56°F
40%
3mph
SE
40% Chance Rain Showers
Humidity
50%
Feels like
56°F
Dew Point
38°F
7:17 PM
8 PM
55°F
40%
2mph
SE
40% Chance Rain Showers
Humidity
54%
Feels like
55°F
Dew Point
38°F
9 PM
53°F
40%
2mph
SE
40% Chance Rain Showers
Humidity
57%
Feels like
53°F
Dew Point
38°F
10 PM
51°F
30%
2mph
SSE
30% Chance Rain Showers
Humidity
61%
Feels like
51°F
Dew Point
38°F
11 PM
50°F
30%
0mph
SE
30% Chance Rain Showers
Humidity
65%
Feels like
50°F
Dew Point
38°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.

Today's Weather Outlook

Today's Weather Outlook

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for March 19, 2026

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

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

When Does Spring Begin?

(Image provided by Pixabay.com)

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