Herrin, IL Weather
Herrin, IL climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 30's.
The warmest month of the year is July with an average maximum temperature of 87.20 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 19.00 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and moderate during winter with an average difference of 20 degrees Fahrenheit.
The annual average precipitation at Herrin is 44.49 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is November with an average rainfall of 4.96 Inches.
Weather Data
Current Conditions
|
Overcast, 54°F | Humidity: 92% | Dewpoint: 52°F |
| Wind Speed: S 6.9 MPH (6 KT) | Heat Index: 54°F | ||
| Barometer: 30.06 in. | Wind Chill: 52°F |
Weather Forecast
 | Hi: 59°F | Today: Mostly cloudy. A chance of showers in the morning...Then showers likely in the afternoon. Highs in the upper 50s. South winds 10 to 15 mph. Chance of precipitation 60 percent. |
| Lo: 41°F | ||
 | Hi: 55°F | Wednesday: Partly sunny. Highs in the mid 50s. West winds 10 to 15 mph. |
| Lo: 35°F | ||
| Hi: 45°F | Thanksgiving day: Mostly cloudy. Highs in the mid 40s. West winds 10 to 15 mph. |
| Lo: 35°F | ||
 | Hi: 49°F | Friday: Mostly sunny. Highs in the upper 40s. |
| Lo: 35°F | ||
| Hi: 51°F | Saturday: Mostly clear. Highs in the lower 50s. Lows in the mid 30s. |
| Lo: 35°F | ||
 | Hi: 51°F | Sunday: Partly sunny with a 20 percent chance of rain. Highs in the lower 50s. |
| Lo: 39°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waxing Gibbous Moon | Civil Twilight: 6:16 AM CST |
Sunrise: 6:45 AM CST |
| Sunset: 4:39 PM CST |
Civil Twilight: 5:08 PM CST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 38.1 | 44.1 | 54.7 | 65.7 | 74.8 | 83.1 | 87.2 | 86.0 | 79.2 | 68.2 | 54.9 | 42.8 | 64.9 |
| Mean °F | 28.6 | 33.5 | 43.6 | 53.9 | 63.2 | 72.0 | 76.3 | 74.5 | 67.0 | 55.4 | 44.3 | 33.2 | 53.8 |
| Min °F | 19.0 | 22.9 | 32.5 | 42.0 | 51.6 | 60.8 | 65.4 | 62.9 | 54.8 | 42.5 | 33.7 | 23.6 | 42.6 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 3.28 | 2.87 | 4.16 | 4.08 | 4.73 | 4.06 | 4.12 | 2.54 | 3.50 | 2.66 | 4.96 | 3.53 | 44.49 |
