Union Weather Forecast

    • 64
    • 86

    Slight Chance Rain Showers

    • 65
    • 82

    Chance Thunderstorms

    • 67
    • 84

    Rain Showers

    • 70
    • 87

    Chance Rain Showers

    • 72
    • 93

    Chance Thunderstorms

    • 67
    • 91

    Chance Thunderstorms

    • 64
    • 89

    Chance Rain Showers

Today 6 Jun McHenry

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Northwest Winds around 5 Mph. Chance of precipitation 20 percent.

Tonight 6 Jun McHenry

Partly cloudy early in the Evening, then becoming mostly cloudy. Lows in the mid 60s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

June Temperature

De Kalb Taylor Municipal Airport (21.7 miles)

  • Lowest 3 June, 2026

    49.5 °F

  • Average June

    66.4 °F

  • Highest 4 June, 2026

    85.1 °F

Climate (2021–Present)

De Kalb Taylor Municipal Airport (21.7 miles)

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

  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.4 °F
Get WillyWeather+ to remove ads