Herculaneum, MO Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Herculaneum, MO in one place.
Sunny, with a high near 88.
Local Weather Overview
This forecast page for Herculaneum, MO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 12, 2026 2:26 AM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Herculaneum, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 2:26 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Herculaneum
Friday looks like the warmest upcoming period in Herculaneum at 94 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Tuesday at about 1 to 6 mph NE.
The forecast from Jul 14 through Jul 18 stays mostly dry.
Forecast Details
- Last updated
- Jul 12, 2026 2:26 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 69.
Sunny, with a high near 90.
Mostly clear, with a low around 70.
Sunny, with a high near 92.
Mostly clear, with a low around 72.
Sunny, with a high near 94.
Mostly clear, with a low around 73.
Sunny, with a high near 94.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
88°F |
1 to 6 mph
NE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
69°F |
0 to 5 mph
E
|
|
Wednesday
Jul 15
|
Sunny
|
90°F |
0 to 3 mph
E
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
70°F |
2 mph
SW
|
|
Thursday
Jul 16
|
Sunny
|
92°F |
0 to 3 mph
W
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
72°F |
2 mph
SW
|
|
Friday
Jul 17
|
Sunny
|
94°F |
5 mph
W
|
|
Friday Night
Jul 17
|
Mostly Clear
|
73°F |
3 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
94°F |
6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Herculaneum.
