Sunbury Weather Forecast

    • 48
    • 55

    Rain Showers

    • 46
    • 55

    Rain Showers

    • 46
    • 60

    Chance Rain Showers

    • 45
    • 63

    Slight Chance Rain Showers

    • 49
    • 69

    Chance Rain Showers

    • 53
    • 70

    Chance Rain Showers

Today 21 May Northumberland

Showers this Morning, then Periods of rain this afternoon. Cooler. Near steady temperature in the lower 50s. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 21 May Northumberland

Showers. Lows in the upper 40s. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunbury Temperature Statistics

May Temperature

Selinsgrove Penn Valley Airport (4.3 miles)

  • Lowest 10 May, 2025

    41.6 °F

  • Average May

    63.1 °F

  • Highest 17 May, 2025

    82.7 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (4.3 miles)

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

  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    63.3 °F
Get WillyWeather+ to remove ads