Herculaneum, MO weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Herculaneum now
Loading the National Weather Service forecast…
Herculaneum weather by the hour
Herculaneum weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Herculaneum.
This week in Herculaneum
Sunrise, sunset and moon in Herculaneum
What is the weather usually like in Herculaneum?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 23°F average low
- 43.6 inprecipitation per year · 1,107 mm
- 9.2 insnowfall per year · 23 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Herculaneum: May and August to October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station FESTUS, MO US (USC00232850), adjusted for the elevation of Herculaneum.
Herculaneum weather month by month
Sunrise and sunset in Herculaneum through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:15 AM | 5:06 PM | 9 h 51 min |
| February | 6:50 AM | 5:41 PM | 10 h 51 min |
| March | 7:10 AM | 7:09 PM | 11 h 59 min |
| April | 6:23 AM | 7:39 PM | 13 h 15 min |
| May | 5:48 AM | 8:07 PM | 14 h 18 min |
| June | 5:36 AM | 8:28 PM | 14 h 52 min |
| July | 5:49 AM | 8:26 PM | 14 h 36 min |
| August | 6:15 AM | 7:56 PM | 13 h 41 min |
| September | 6:42 AM | 7:11 PM | 12 h 28 min |
| October | 7:09 AM | 6:25 PM | 11 h 15 min |
| November | 6:41 AM | 4:50 PM | 10 h 9 min |
| December | 7:09 AM | 4:43 PM | 9 h 34 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Herculaneum?
Herculaneum has a humid subtropical climate. The warmest month is July, with an average high of 89°F (32°C), and the coldest is January, with average lows of 23°F (-5°C).
It gets about 43.6 inches (1,107 mm) of precipitation a year. The wettest month is April and the driest is February. Snow is common: about 9 inches fall in an average year.
The best time to visit Herculaneum is May and August to October. At 423 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Herculaneum
Weather in towns near Herculaneum
Questions about the weather in Herculaneum
What is the hottest month in Herculaneum?
July, with an average high of 89°F (32°C).
What is the coldest month in Herculaneum?
January, with an average low of 23°F (-5°C).
How much does it rain in Herculaneum?
About 43.6 inches (1,107 mm) a year; the wettest month is April.
Does it snow in Herculaneum?
Yes, about 9 inches of snow fall in an average year.
When is the best time to visit Herculaneum?
May and August to October, when temperatures are most pleasant and rainy days are fewer.
What climate does Herculaneum have?
Humid subtropical (Köppen Cfa).
What is the weather like in Herculaneum in November?
Highs average 57°F and lows 36°F, with about 3.5 inches of precipitation.
What time is sunrise in Herculaneum?
Around 6:41 AM in mid-November, and sunset around 4:50 PM. Today’s exact times are shown above.
Where does this Herculaneum weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Herculaneum.
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