Irwin Weather Forecast

    • 46
    • 73

    Mostly Sunny

    • 38
    • 67

    Mostly Sunny

    • 42
    • 67

    Sunny

    • 49
    • 76

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

    • 46
    • 74

    Mostly Sunny

Today 4 Oct Union

Sunny. Highs in the lower 70s. Northwest Winds around 5 Mph.

Tonight 4 Oct Union

Clear. Lows in the mid 40s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Irwin Temperature Statistics

October Temperature

Marysville Union County Airport (9.9 miles)

  • Lowest 2 October, 2026

    48.2 °F

  • Average October

    68.7 °F

  • Highest 1 October, 2026

    87.8 °F

Climate (2021–2026)

Marysville Union County Airport (9.9 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    62.6 °F
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