Johnsburg Weather Forecast

    • 33
    • 61

    Gradual Clearing

    • 45
    • 60

    Mostly Sunny

    • 41
    • 69

    Sunny

    • 35
    • 58

    Rain Showers

    • 25
    • 43

    Chance Rain/Snow

    • 33
    • 45

    Chance Rain/Snow

Today 7 Mar McHenry

Cloudy. A slight chance of Showers late in the morning. A slight chance of drizzle in the late morning and early afternoon. Breezy. Highs around 60. Temperature falling into the lower 40s in the afternoon. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 20 percent.

Tonight 7 Mar McHenry

Mostly cloudy in the Evening, then clearing. Lows in the lower 30s. West Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnsburg Temperature Statistics

March Temperature

Chicago/Waukegan Regional Airport (19.3 miles)

  • Lowest 1 March, 2026

    18.6 °F

  • Average March

    32.5 °F

  • Highest 5 March, 2026

    43 °F

Climate (2021–Present)

Chicago/Waukegan Regional Airport (19.3 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    59.7 °F
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