Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Severe weather to focus on central U.S. into the start of April. See the forecast. Chevron right
Snow and ice to kick off April from Minnesota to Maine. Get the forecast. Chevron right

Herculaneum, MO

69°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Herculaneum

Missouri

69°
No results found.
Try searching for a city, zip code or point of interest.
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Herculaneum, MO Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today

 Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Today's Weather

Tue, Mar 31

Partly sunny, breezy and very warm Hi: 86°

Tonight: Cloudy with a strong thunderstorm; thunderstorms can bring hail and damaging winds Lo: 61°

Current Weather

1:11 AM

69°F
RealFeel® 67°
Partly cloudy More Details
Wind S 4 mph
Wind Gusts 9 mph
Air Quality Fair

Looking Ahead

Rain and a thunderstorm from this evening to Thursday afternoon can lead to flooding; storms can bring hail and damaging winds

Herculaneum Weather Radar

Herculaneum Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

2 AM 68°
rain drop 0%
3 AM 67°
rain drop 0%
4 AM 66°
rain drop 0%
5 AM 65°
rain drop 0%
6 AM 65°
rain drop 0%
7 AM 64°
rain drop 0%
8 AM 66°
rain drop 2%
9 AM 69°
rain drop 2%
10 AM 72°
rain drop 2%
11 AM 76°
rain drop 2%
12 PM 78°
rain drop 2%
1 PM 81°
rain drop 2%

10-Day Weather Forecast

Today

3/31

86° 61°

Breezy and warm with some sun

Night: Clouds, a strong thunderstorm
16%

Wed

4/1

73° 67°

A shower and thunderstorm

A shower and thunderstorm
88%

Thu

4/2

75° 64°

Showers and a heavier t-storm

A stray t-storm early; cloudy
97%

Fri

4/3

82° 64°

Warm with a stray t-storm

Periods of rain and a t-storm
55%

Sat

4/4

69° 39°

Periods of rain and a t-storm

Partly cloudy and much colder
94%

Sun

4/5

56° 33°

More sunshine than clouds

Clear
7%

Mon

4/6

64° 38°

Plenty of sun

Partly cloudy
0%

Tue

4/7

67° 40°

Sun through high clouds

Partly cloudy
0%

Wed

4/8

69° 49°

Plenty of sunshine

Clear
1%

Thu

4/9

72° 50°

Mostly sunny

Increasing cloudiness
5%

Sun & Moon

12 hrs 35 mins
Rise 6:49 AM
Set 7:24 PM
Waxing Gibbous
Rise 6:18 PM
Set 6:22 AM

Air Quality

See More
Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Allergy Outlook

See All
Tree Pollen Very High Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander High Data is not supported in this location

Top Stories

Severe Weather

Pre-Easter severe storms, flooding downpours to focus on central US

10 hours ago

Winter Weather

Ice and snow to bring power outage, travel risks to northern U.S.

10 hours ago

Astronomy

April’s full Pink moon rises April 1: Here’s when to watch

3 days ago

Weather Forecasts

Series of storms to usher in rain, cooler air to the West

10 hours ago

Astronomy

Artemis II: Weather ‘go’ for historic moon launch

15 hours ago

 More Stories

Featured Stories

Astronomy

Artemis II: What to know about this historic moon mission

17 hours ago

Recreation

DC cherry blossoms reach peak bloom early

4 days ago

Astronomy

April's back-to-back astronomy events include 1st meteor shower in mon...

3 days ago

Astronomy

Everything's bigger on Jupiter, including its lightning bolts

3 days ago

Economic Impact

Gas prices surge nearly $1 in a month as EV charging holds steady

3 days ago
World North America United States Missouri Herculaneum

Weather Near Herculaneum:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...