Weather forecast for tomorrow
Herrin, IL

Weather forecast for tomorrow

Wednesday, Jun 18.

PM Thunderstorms / Wind
5:32 am

8:22 pm
CDT
PM Thunderstorms / Wind
86°F / 68°F
  • Wind: 22mph SW
  • Humidity: 76%
  • Precip. probability: 61%
  • Precipitation: 0.75"
  • UV index: 8
Tomorrow, stormy conditions with thunder and lightning are also expected in the afternoon.
With a high probability, moderate precipitation is predicted. The forecasted temperature range extends from a high of a blazing 86°F to a low of an agreeable 68°F.
The maximum heat index, which indicates how humid air affects the felt temperature, is estimated at a very hot 98.6°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature will be in line with June's average maximum of 84.7°F.
Sunrise will be at 5:32 am and sunset at 8:22 pm; tomorrow's daylight will last for 14h and 50min.

Frequently asked questions

What is the weather forecast for Herrin for tomorrow?
Tomorrow, in Herrin, afternoon thunderstorms will arrive with wind gusts and occasional lightning.
Will it rain tomorrow?
Moderate precipitation of 0.75" is anticipated. The likelihood of rainfall is 61%.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 86°F, while the lowest temperature will be 68°F. The maximum heat index, which adjusts the air temperature based on humidity, is assessed at 98.6°F.
The maximum temperature will be in line with the average highest temperature of 84.7°F in June. The lowest temperature will be also in line with the average low of 66.4°F.
When is the sunrise / sunset tomorrow?
On Wednesday, in Herrin, sunrise will be at 5:32 am and sunset at 8:22 pm (CDT).
How long will the day be tomorrow?
Tomorrow in Herrin, the daylight will last for 14h and 50min.

Hourly weather forecast

12 am
  • 75°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph S
  • Pressure: 29.83"Hg
  • Humidity: 89%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 75°F
  • Feels like:
    79°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph S
  • Pressure: 29.83"Hg
  • Humidity: 94%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 75°F
  • Feels like:
    79°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 94%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 9mi
Sunrise: 5:32 am
6 am
  • 75°F
  • Feels like:
    79°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph S
  • Pressure: 29.83"Hg
  • Humidity: 94%
  • Precip. probability: 16%
  • Precipitation: 0"
  • Visibility: 9mi
8 am
  • 77°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 90%
  • Precip. probability: 22%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 81°F
  • Feels like:
    88°F
Partly Cloudy
Partly Cloudy
  • Wind: 17mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 78%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 84°F
  • Feels like:
    91°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Wind: 22mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 72%
  • Precip. probability: 16%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 84°F
  • Feels like:
    91°F
Thunderstorms / Wind
Thunderstorms / Wind
  • Wind: 22mph SW
  • Pressure: 29.83"Hg
  • Humidity: 70%
  • Precip. probability: 60%
  • Precipitation: 0.08"
  • Visibility: 6mi
4 pm
  • 84°F
  • Feels like:
    91°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 17mph SW
  • Pressure: 29.8"Hg
  • Humidity: 68%
  • Precip. probability: 56%
  • Precipitation: 0.2"
  • Visibility: 7mi
6 pm
  • 81°F
  • Feels like:
    86°F
Thunderstorms
Thunderstorms
  • Wind: 14mph SW
  • Pressure: 29.8"Hg
  • Humidity: 73%
  • Precip. probability: 60%
  • Precipitation: 0.04"
  • Visibility: 6mi
8 pm
  • 75°F
  • Feels like:
    79°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 10mph SW
  • Pressure: 29.8"Hg
  • Humidity: 81%
  • Precip. probability: 30%
  • Precipitation: 0.04"
  • Visibility: 8mi
Sunset: 8:22 pm
10 pm
  • 73°F
  • Feels like:
    75°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 10mph SW
  • Pressure: 29.85"Hg
  • Humidity: 90%
  • Precip. probability: 41%
  • Precipitation: 0.08"
  • Visibility: 6mi
Tomorrow, on Wednesday, a combination of gloomy and storm-filled weather is predicted.
Rainfall is expected from 1 pm to 6 pm, and from 8 pm to 11 pm. With moderate precipitation of 0.2", most rainfall is expected at 4 pm.
The temperature will vary between a minimum of 71.6°F and a maximum of 84.2°F. The feels-like temperature will be between a minimum of 75.2°F and a maximum of 91.4°F. The hottest part of the day will be from noon to 5 pm.
The high temperature is expected to be alike with June's usual value of 84.7°F. The temperature low is forecasted to be also resembling the usual June value of 66.4°F.
Updated: Jun 17, 2025 @ 20:57:38 UTC
Published by: Weather U.S. | About Us
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