Third Lake Weather Forecast

    • 64
    • 67

    Rain Showers

    • 51
    • 70

    Rain Showers

    • 45
    • 65

    Mostly Sunny

    • 45
    • 64

    Partly Sunny

    • 42
    • 66

    Mostly Sunny

    • 42
    • 60

    Mostly Sunny

Today 30 Sep Lake

Showers. Highs in the upper 60s. Southwest Winds 10 to 15 Mph. Chance of precipitation near 100 percent.

Tonight 30 Sep Lake

Showers. A slight chance of Thunderstorms in the late evening and overnight. Near steady temperature in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of precipitation 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Third Lake Temperature Statistics

September Temperature

Chicago/Waukegan Regional Airport (8.1 miles)

  • Lowest 27 September, 2026

    44.7 °F

  • Average September

    67.2 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Chicago/Waukegan Regional Airport (8.1 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    59.7 °F
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