Winnetka Weather Forecast

    • 31
    • 61

    Rain Showers

    • 29
    • 40

    Partly Sunny

    • 40
    • 48

    Partly Sunny

    • 47
    • 59

    Slight Chance Thunderstorms

    • 44
    • 67

    Chance Thunderstorms

    • 49
    • 55

    Chance Rain Showers

Today 26 Mar Northern Cook

Partly cloudy in the Morning, then cloudy in the afternoon. Showers likely and a chance of Thunderstorms mid to late afternoon. Becoming Blustery in the afternoon. Highs in the 70s by late Morning, then Temperatures quickly falling into the 40s in the afternoon. Southwest Winds 5 to 10 Mph, increasing to north 15 to 25 Mph with Gusts up to 35 Mph in the afternoon. Chance of precipitation 70 percent.

Tonight 26 Mar Northern Cook

Mostly cloudy. A chance of Showers and Thunderstorms early in the Evening, then a slight chance of rain Showers late in the evening. Breezy with Lows around 30. Northeast Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of precipitation 50 percent.

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Winnetka Temperature Statistics

March Temperature

Chicago / Wheeling, Pal-Waukee Airport (8.7 miles)

  • Lowest 17 March, 2026

    13.6 °F
  • Average March

    40.9 °F
  • Highest 21 March, 2026

    76.6 °F

Climate (2021–Present)

Chicago / Wheeling, Pal-Waukee Airport (8.7 miles)

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  • Average Low 2021–2026

    44.1 °F
  • Average 2021–2026

    52.9 °F
  • Average High 2021–2026

    61.5 °F
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