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.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herrin Temperature Statistics

March Temperature

Marion - Williamson County Regional Airport (2.5 miles)

  • Lowest 2 March, 2025

    19.4 °F

  • Average March

    48.8 °F

  • Highest 14 March, 2025

    82.4 °F

Climate (2020–Present)

Marion - Williamson County Regional Airport (2.5 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    67.3 °F
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