Sunbury Airport Weather Forecast

    • 44
    • 57

    Chance Rain Showers

    • 46
    • 67

    Chance Rain Showers

    • 48
    • 73

    Mostly Sunny

    • 48
    • 70

    Rain Showers Likely

    • 45
    • 57

    Rain Showers Likely

    • 45
    • 61

    Chance Rain Showers

Today 21 Apr Northumberland

Sunny. Highs in the mid 50s. South Winds around 5 Mph.

Tonight 21 Apr Northumberland

Mostly cloudy. A chance of Showers after midnight. Not as cool with Lows in the lower 40s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunbury Airport Temperature Statistics

April Temperature

Selinsgrove Penn Valley Airport (6.2 miles)

  • Lowest 8 April, 2026

    23 °F

  • Average April

    55.2 °F

  • Highest 15 April, 2026

    87.1 °F

Climate (2021–Present)

Selinsgrove Penn Valley Airport (6.2 miles)

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

  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63.1 °F
Get WillyWeather+ to remove ads