Irwin Weather Forecast

    • 34
    • 62

    Sunny

    • 38
    • 66

    Sunny

    • 40
    • 68

    Mostly Sunny

    • 40
    • 68

    Mostly Sunny

    • 44
    • 68

    Mostly Sunny

    • 39
    • 67

    Mostly Sunny

Today 18 Oct Union

Sunny. Highs in the lower 60s. South Winds 5 to 10 Mph.

Tonight 18 Oct Union

Clear. Areas of frost after midnight. Lows in the mid 30s. South Winds around 5 Mph.

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Irwin Temperature Statistics

October Temperature

Marysville Union County Airport (9.9 miles)

  • Lowest 6 October, 2026

    37.4 °F

  • Average October

    62.3 °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

    52.7 °F

  • Average High 2021–2026

    62.5 °F
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