Herculaneum is the coldest spot around
Herculaneum has chilly winters and warm summers. A typical July afternoon reaches 89°, a January night drops to 23°, and about 9 inches of snow falls in a normal winter. Normal November highs come to 56°, and lows to 36°.
Getting the latest forecast from the National Weather Service…
What stands out about Herculaneum’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Herculaneum’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Herculaneum.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Herculaneum itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Festus, MO (2 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.