Irwin Weather Forecast

    • 67
    • 85

    Decreasing Clouds

    • 72
    • 90

    Partly Sunny

    • 72
    • 94

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

    • 74
    • 94

    Slight Chance Thunderstorms

    • 72
    • 93

    Chance Thunderstorms

Today 28 Jun Union

Mostly cloudy in the Morning, then partly cloudy with a slight chance of Showers in the afternoon. Humid with Highs in the mid 80s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 28 Jun Union

Mostly cloudy with a 50 percent chance of Showers. Lows in the mid 60s. Northeast Winds around 5 Mph.

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Irwin Temperature Statistics

June Temperature

Marysville Union County Airport (9.9 miles)

  • Lowest 3 June, 2026

    48.2 °F

  • Average June

    70.4 °F

  • Highest 10 June, 2026

    91.4 °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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