McLean Weather Forecast

    • 44
    • 76

    Partly Sunny

    • 57
    • 78

    Mostly Sunny

    • 35
    • 79

    Mostly Cloudy

    • 36
    • 52

    Partly Sunny

    • 39
    • 59

    Mostly Cloudy

    • 46
    • 60

    Partly Sunny

Today 20 Mar McLean

Partly sunny. Highs in the mid 70s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 20 Mar McLean

Mostly cloudy. Lows in the lower 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming east after midnight.

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McLean Temperature Statistics

March Temperature

Logan County Airport (13.7 miles)

  • Lowest 16 March, 2026

    16.5 °F

  • Average March

    46.8 °F

  • Highest 10 March, 2026

    83.1 °F

Climate (2021–Present)

Logan County Airport (13.7 miles)

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  • Average Low 2021–2026

    45.6 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    65.7 °F
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