What is today's weather forecast for Northumberland, PA?

Today's forecast for Northumberland shows a low of 23 degrees Fahrenheit. Mostly cloudy, with a low around 23.

What is the 7-day weather forecast for Northumberland, PA?

The 7-day forecast for Northumberland shows highs from 27 to 39 degrees and lows from 9 to 23 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Northumberland, PA this week?

Yes, rain is possible in Northumberland this week. Precipitation chances: Tuesday (30% chance), Wednesday (30% chance).

How accurate is the Northumberland weather forecast?

WeatherForYou provides highly accurate Northumberland forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Northumberland, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

29°F
Feels Like 29°F

Humidity 79% Dew Point 23°F Wind WSW 1 MPH Gusts 3 Barometer 30.01 in.

Report from a MADIS/MESONET weather station 0.4 mi. NNE of central Northumberland
at 2:45 AM Thu, Dec 4, 2025

Point Forecast at a Glance

WedDec 3

ThuDec 4

FriDec 5

SatDec 6

SunDec 7

MonDec 8

TueDec 9

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 27°F to 38°F. Mostly dry conditions with only one day showing snow chances.

Climate Context

This week's forecast shows temperatures running 6°F below the historical average for December. Normal highs for this period are around 40°F with lows around 25°F.

This Date in Weather History

1982 - The temperature in New York City's Central Park reached 72 degrees to establish a record high for December. The month as a whole was also the warmest of record.

Northumberland, PA 7 Day Weather Forecast Details

Wednesday Dec 3

Night: Mostly cloudy, with a low around 23. Calm wind.

Thursday Dec 4

Day: Mostly cloudy, then gradually becoming sunny, with a high near 36. Northwest wind 5 to 10 mph, with gusts as high as 28 mph.

Night: Mostly clear, with a low around 10. Northwest wind around 5 mph becoming calm in the evening.

Friday Dec 5

Day: Increasing clouds, with a high near 29. Calm wind becoming south around 6 mph.

Night: Mostly cloudy, with a low around 18. Calm wind.

Saturday Dec 6

Day: Mostly cloudy, with a high near 37.

Night: Mostly cloudy, with a low around 22.

Sunday Dec 7

Day: Mostly cloudy, with a high near 38.

Night: Mostly cloudy, with a low around 17.

Monday Dec 8

Day: Mostly sunny, with a high near 27.

Night: Partly cloudy, with a low around 9.

Tuesday Dec 9

Day: Mostly cloudy, with a high near 31.

Night: A chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.

Wednesday Dec 10

Day: A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.

About Northumberland, PA

Northumberland is a borough in Northumberland County, Pennsylvania, United States. The population was 3,911 at the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

Your favorites: