Herrin Weather Forecast

    • 39
    • 59

    Becoming Sunny

    • 53
    • 74

    Partly Sunny

    • 55
    • 77

    Mostly Sunny

    • 59
    • 78

    Chance Rain Showers

    • 61
    • 80

    Slight Chance Thunderstorms

    • 67
    • 84

    Mostly Cloudy

Today 7 Apr Williamson

Mostly sunny. Highs around 60. Northeast Winds 10 to 15 Mph.

Tonight 7 Apr Williamson

Partly cloudy. Near steady temperature in the lower 40s. Northeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Herrin Temperature Statistics

April Temperature

Marion - Williamson County Regional Airport (2.5 miles)

  • Lowest 4 April, 2026

    43.2 °F

  • Average April

    67.6 °F

  • Highest 3 April, 2026

    80.6 °F

Climate (2021–Present)

Marion - Williamson County Regional Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    56.1 °F

  • Average High 2021–2026

    67.9 °F
Get WillyWeather+ to remove ads