Cornwall Weather Forecast

    • 39
    • 56

    Increasing Clouds

    • 47
    • 69

    Mostly Cloudy

    • 39
    • 62

    Mostly Sunny

    • 52
    • 63

    Mostly Cloudy

    • 60
    • 76

    Mostly Cloudy

    • 62
    • 82

    Mostly Cloudy

Today 9 Apr Lebanon

Widespread frost this morning. Mostly sunny. Highs in the upper 50s. South Winds 5 to 10 Mph.

Tonight 9 Apr Lebanon

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 30s. Southeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornwall Temperature Statistics

April Temperature

Lancaster, Lancaster Airport (11.8 miles)

  • Lowest 7 April, 2026

    34 °F
  • Average April

    53.3 °F
  • Highest 4 April, 2026

    80.1 °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