Union Weather Forecast

    • 26
    • 29

    Snow

    • 5
    • 30

    Chance Snow

    • 10
    • 22

    Snow Likely

    • 12
    • 20

    Mostly Cloudy

    • 1
    • 28

    Mostly Cloudy

    • 4
    • 15

    Partly Sunny

Today 29 Nov McHenry

Snow. Patchy blowing and Drifting snow in the afternoon. Snow may be heavy at Times in the afternoon. Snow accumulation of 4 to 8 Inches. Near steady temperature in the upper 20s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation near 100 percent.

Tonight 29 Nov McHenry

Patchy blowing and Drifting snow early in the evening. Patchy blowing and Drifting snow late. Snow. Total snow accumulation of 8 to 12 Inches. Blustery. Near steady temperature in the upper 20s. Southeast Winds 10 to 15 Mph, increasing to northwest 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of precipitation near 100 percent.

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Union Temperature Statistics

November Temperature

De Kalb Taylor Municipal Airport (21.7 miles)

  • Lowest 27 November, 2025

    22.1 °F

  • Average November

    42.1 °F

  • Highest 15 November, 2025

    68.9 °F

Climate (2020–Present)

De Kalb Taylor Municipal Airport (21.7 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    49.6 °F

  • Average High 2020–2025

    58.7 °F
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