Marengo Weather Forecast

    • 5
    • 17

    Chance Snow Showers

    • 5
    • 22

    Partly Sunny

    • 16
    • 25

    Mostly Cloudy

    • 15
    • 28

    Mostly Cloudy

    • 14
    • 28

    Mostly Cloudy

    • 11
    • 25

    Chance Snow

Today 30 Jan McHenry

Snow Showers and snow Squalls in the late morning and early Afternoon, then numerous snow Showers late. Snow may be heavy at Times late in the morning. Total snow accumulation of 1 to 3 Inches. Highs around 17. North Winds 10 to 15 Mph. Chance of precipitation near 100 percent.

Tonight 30 Jan McHenry

Mostly cloudy. Scattered snow Showers early in the evening. Lows around 6 above. North Winds 10 to 15 Mph. Chance of precipitation 40 percent. Wind chill Values as low as 11 below after midnight.

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Marengo Temperature Statistics

January Temperature

De Kalb Taylor Municipal Airport (22.4 miles)

  • Lowest 23 January, 2026

    -13.2 °F

  • Average January

    19.9 °F

  • Highest 8 January, 2026

    58.3 °F

Climate (2021–Present)

De Kalb Taylor Municipal Airport (22.4 miles)

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  • Average Low 2021–2026

    40.2 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    58.5 °F
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