Cornwall Weather Forecast

    • 61
    • 80

    Chance Rain Showers

    • 61
    • 84

    Partly Sunny

    • 65
    • 89

    Mostly Sunny

    • 68
    • 92

    Partly Sunny

    • 59
    • 86

    Rain Showers Likely

    • 52
    • 71

    Chance Rain Showers

Today 16 May Lebanon

Sunny, warmer with Highs around 80. Southwest Winds 10 to 15 Mph.

Tonight 16 May Lebanon

Mostly clear. Lows in the upper 40s. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornwall Temperature Statistics

May Temperature

Lancaster, Lancaster Airport (11.8 miles)

  • Lowest 4 May, 2026

    36 °F

  • Average May

    56.5 °F

  • Highest 5 May, 2026

    82 °F

Climate (2021–Present)

Lancaster, Lancaster Airport (11.8 miles)

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

  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    65.2 °F
Get WillyWeather+ to remove ads