See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
27°
Clear
Feels Like: 9°
Min: 24°
Max: 37°
The next few hours will be clear, with today reaching 37°C and dropping to 10°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:44
Sunrise
18:55
Sunset
Moon
Waxing Crescent
12:28
Moonrise
21:11
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Herrin.
Resources
UV Index
Humidity
Weather in Herrin today, September 16, 2026
Herrin keeps a mostly sunny profile on September 16, 2026, aside from a cloudier spell around 14:00. Outside that window, bright conditions should still lead the day. The opening hours look fair, as cloud stays near 6% around 09:00. Morning errands should face fewer weather interruptions.
The temperature range runs from about 24°C up to 37°C. Moisture in the air spans 33%-69%, with the highest values around 08:00. Winds stay light, near 5.0 km/h by 17:00, so the day feels still more than breezy.
Expect a more open afternoon, with limited cloud around 23% by 14:00. Residual damp risk should be lower than earlier. Views remain open at about 16.1 km. Daylight runs from 06:44 to 18:55, lasting 12 hours 11 minutes of sunlight today.
The practical takeaway for Herrin is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 37°C.
Frequently asked questions about weather in Herrin
How warm does it get in Herrin?
The warmest month in Herrin is July, with average high temperatures of 32°C. The average temperature during this period is around 27°C.
How cold does it get in Herrin?
The coldest month in Herrin is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Herrin?
The wettest month in Herrin is April, with an average of 138mm of precipitation.
What is the driest time of year in Herrin?
The driest month in Herrin is September, with an average of 69mm of precipitation.
Explore more weather forecasts
- Marion, Illinois
- New York City, New York
- Carbondale, Illinois
- Los Angeles, California
- Mount Vernon, Illinois
- Brooklyn, New York
- Centralia, Illinois
- Chicago, Illinois
- Shiloh, Illinois
- Houston, Texas
- Waterloo, Illinois
- Queens, New York
- Belleville, Illinois
- Phoenix, Arizona
- O'Fallon, Illinois
- Philadelphia, Pennsylvania
