Herrin Weather Forecast
- 40
- 65
Mostly Sunny
- 43
- 65
Mostly Sunny
- 59
- 72
Chance Rain Showers
- 59
- 78
Rain Showers Likely
- 62
- 71
Rain Showers Likely
- 45
- 76
Rain Showers Likely
- 38
- 57
Partly Sunny
Today 25 Mar Williamson
Mostly sunny. Near steady temperature in the lower 60s. Northwest Winds 5 to 10 Mph.
Tonight 25 Mar Williamson
Mostly clear. Lows around 40. North Winds 5 to 10 Mph in the Evening, becoming light and variable.
Herrin Temperature Statistics
March Temperature
Marion - Williamson County Regional Airport (2.5 miles)
Lowest 2 March, 2025
19.4 °FAverage March
48.8 °FHighest 14 March, 2025
82.4 °F
Climate (2020–Present)
Marion - Williamson County Regional Airport (2.5 miles)
Average Low 2020–2025
47 °FAverage 2020–2025
55.3 °FAverage High 2020–2025
67.3 °F