McLean Weather Forecast

    • 54
    • 77

    Rain Showers

    • 49
    • 73

    Slight Chance Thunderstorms

    • 46
    • 67

    Chance Rain Showers

    • 45
    • 66

    Mostly Sunny

    • 49
    • 72

    Partly Sunny

    • 45
    • 68

    Partly Sunny

Today 24 Aug Tompkins

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Morning, then partly sunny with Showers likely with a chance of Thunderstorms in the afternoon. Highs in the upper 70s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 24 Aug Tompkins

Showers likely with a chance of Thunderstorms. Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

McLean Temperature Statistics

August Temperature

Cortland County-Chase Field (4.3 miles)

  • Lowest 2 August, 2025

    44.6 °F

  • Average August

    66.1 °F

  • Highest 12 August, 2025

    89.6 °F

Climate (2020–Present)

Cortland County-Chase Field (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    56.7 °F
Get WillyWeather+ to remove ads