Irwin Weather Forecast

    • 58
    • 75

    Mostly Cloudy

    • 58
    • 78

    Rain Showers

    • 60
    • 79

    Mostly Cloudy

    • 63
    • 80

    Rain Showers Likely

    • 63
    • 78

    Rain Showers Likely

    • 56
    • 82

    Chance Rain Showers

    • 51
    • 74

    Partly Sunny

Today 23 May Union

Mostly cloudy with a chance of Showers and Thunderstorms. Warmer. Near steady Temperatures in the lower 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 23 May Union

Mostly cloudy with a slight chance of Showers this Evening, then partly cloudy after midnight. Lows in the upper 50s. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming south after midnight. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Irwin Temperature Statistics

May Temperature

Marysville Union County Airport (9.9 miles)

  • Lowest 2 May, 2026

    33.8 °F

  • Average May

    57.8 °F

  • Highest 18 May, 2026

    89.6 °F

Climate (2021–Present)

Marysville Union County Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.5 °F
Get WillyWeather+ to remove ads