Irwin Weather Forecast

    • 63
    • 85

    Becoming Sunny

    • 65
    • 87

    Sunny

    • 69
    • 90

    Sunny

    • 71
    • 92

    Mostly Sunny

    • 70
    • 90

    Mostly Sunny

    • 68
    • 88

    Chance Thunderstorms

Today 12 Jul Union

Mostly sunny. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 12 Jul Union

Mostly clear. Lows in the lower 60s. North Winds 5 to 10 Mph.

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Irwin Temperature Statistics

July Temperature

Marysville Union County Airport (9.9 miles)

  • Lowest 8 July, 2026

    62.6 °F

  • Average July

    78.7 °F

  • Highest 3 July, 2026

    95 °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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