Derry Weather Forecast

    • 17
    • 37

    Decreasing Clouds

    • 13
    • 27

    Partly Sunny

    • 33
    • 37

    Mostly Cloudy

    • 27
    • 44

    Rain

    • 21
    • 33

    Snow Likely

    • 14
    • 31

    Snow Likely

    • 12
    • 23

    Chance Snow

Today 7 Dec Westmoreland

Considerable cloudiness. Near steady temperature in the mid 30s. Southwest Winds around 5 Mph.

Tonight 7 Dec Westmoreland

Mostly cloudy. Lows around 17. North Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Derry Temperature Statistics

December Temperature

Latrobe / Westmorland (6.2 miles)

  • Lowest 5 December, 2025

    12.2 °F

  • Average December

    28.5 °F

  • Highest 1 December, 2025

    35.6 °F

Climate (2020–Present)

Latrobe / Westmorland (6.2 miles)

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

  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    62.6 °F
Get WillyWeather+ to remove ads