McLean Weather Forecast

    • 25
    • 31

    Chance Freezing Rain

    • 16
    • 39

    Rain/Snow

    • 3
    • 20

    Chance Snow Showers

    • 30
    • 32

    Chance Snow Showers

    • 20
    • 44

    Chance Rain Showers

    • 16
    • 27

    Mostly Cloudy

Today 30 Jan Tompkins

Partly sunny. Highs in the mid 30s. Southwest Winds 5 to 10 Mph.

Tonight 30 Jan Tompkins

Partly cloudy in the Evening, then mostly cloudy with a chance of freezing rain after midnight. Lows in the mid 20s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of precipitation 30 percent.

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McLean Temperature Statistics

January Temperature

Cortland County-Chase Field (4.3 miles)

  • Lowest 22 January, 2025

    -14.8 °F

  • Average January

    20.9 °F

  • Highest 1 January, 2025

    39.2 °F

Climate (2020–Present)

Cortland County-Chase Field (4.3 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    56.6 °F
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