Irwin Weather Forecast

    • 34
    • 45

    Slight Chance Snow

    • 29
    • 54

    Breezy

    • 39
    • 48

    Mostly Cloudy

    • 31
    • 68

    Rain

    • 16
    • 38

    Breezy

    • 17
    • 30

    Partly Sunny

Today 12 Mar Union

Mostly sunny early this Afternoon, then becoming partly cloudy. Much cooler with Highs in the mid 40s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 12 Mar Union

Mostly clear in the Evening, then mostly cloudy with a slight chance of rain and snow Showers after midnight. Lows in the mid 30s. West Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to south 15 to 20 Mph with Gusts up to 35 Mph after midnight. Chance of precipitation 20 percent.

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Irwin Temperature Statistics

March Temperature

Marysville Union County Airport (9.9 miles)

  • Lowest 2 March, 2026

    21.2 °F

  • Average March

    49.5 °F

  • Highest 6 March, 2026

    75.2 °F

Climate (2021–Present)

Marysville Union County Airport (9.9 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    62.4 °F
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