Weather forecast for tomorrowHerculaneum, MO
Weather forecast for tomorrow
Monday Oct 19, 2026
- 73°F
- 41°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 3mphSSE 154°
- Humidity: 57%
- UV index: 5
- Sunrise: 7:14 am CDT
- Sunset: 6:18 pm CDT
- details ▼
On Monday, October 19, a glowing sky and minimal clouds are expected.
A notable disparity in temperature is anticipated, reaching up to a maximum of a warm 73.4°F and falling to a minimum of an icy 41°F.
The predicted maximum temperature will be a couple of degrees higher than October's typical high of 67.1°F.
Sunrise will be at 7:14 am and sunset at 6:18 pm; tomorrow's daylight will last for 11h and 4min.
A notable disparity in temperature is anticipated, reaching up to a maximum of a warm 73.4°F and falling to a minimum of an icy 41°F.
The predicted maximum temperature will be a couple of degrees higher than October's typical high of 67.1°F.
Sunrise will be at 7:14 am and sunset at 6:18 pm; tomorrow's daylight will last for 11h and 4min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 72°C.
Coldest period: 3 am - 6 am 39°C.
Coldest period: 3 am - 6 am 39°C.
Chance of precipitation
Highest chance: 6 am 6%.
Hourly weather forecast
- 12 am
- 45°F
- Feels like:45°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphS 173°
- Humidity: 90%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 0mphS 171°
- Humidity: 94%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 0mphS 188°
- Humidity: 98%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 0mphS 174°
- Humidity: 99%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:14 am
- 8 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 0mphS 169°
- Humidity: 97%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 1mphSSE 161°
- Humidity: 67%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphS 173°
- Humidity: 44%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 70°F
- Feels like:70°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphSE 139°
- Humidity: 37%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 72°F
- Feels like:72°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphSE 134°
- Humidity: 37%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphESE 105°
- Humidity: 48%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:18 pm
- 8 pm
- 55°F
- Feels like:55°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphESE 109°
- Humidity: 72%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:50°F
Mostly Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphESE 117°
- Humidity: 83%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Monday, primarily dry and sunny and occasionally gloomy weather is predicted.
The temperature will be between a minimum of 37.4°F and a maximum of 71.6°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be a few degrees higher than October's average high of 67.1°F. The lowest temperature is more similar to November's average minimum of 38.1°F than the usual minimum of 49.1°F in October.
The temperature will be between a minimum of 37.4°F and a maximum of 71.6°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be a few degrees higher than October's average high of 67.1°F. The lowest temperature is more similar to November's average minimum of 38.1°F than the usual minimum of 49.1°F in October.
Updated: Oct 18, 2026 @ 06:40:02 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, mostly clear skies and sunshine will create ideal daytime conditions.
Tomorrow, the maximum temperature will be 73.4°F, while the minimum temperature will be 41°F.
The highest temperature will be slightly warmer than the average maximum of 67.1°F in October. The lowest temperature will be also relatively lower than the average low of 49.1°F.
The highest temperature will be slightly warmer than the average maximum of 67.1°F in October. The lowest temperature will be also relatively lower than the average low of 49.1°F.
On Monday, in Herculaneum, sunrise will be at 7:14 am and sunset at 6:18 pm (CDT).
In Herculaneum, tomorrow, there will be 11h and 4min of daylight.
