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

Today's forecast for Belfast shows a low of 19 degrees Fahrenheit. Scattered flurries.

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

The 7-day forecast for Belfast shows highs from 28 to 50 degrees and lows from 14 to 29 degrees Fahrenheit. Expect precipitation on 3 days with chances of 20% or higher.

Will it rain in Belfast, PA this week?

Yes, rain is possible in Belfast this week. Precipitation chances: Saturday (80% chance), Sunday (20% chance), Thursday (30% chance).

How accurate is the Belfast weather forecast?

WeatherForYou provides highly accurate Belfast 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.

Belfast, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

23°F
Feels Like 19°F

Humidity 64% Dew Point 13°F Wind N 3 MPH Gusts 9 Barometer 29.88 in.

Report from a MADIS/MESONET weather station 1.6 mi. SW of central Belfast
at 2:05 AM Fri, Dec 12, 2025

Point Forecast at a Glance

ThuDec 11

FriDec 12

SatDec 13

SunDec 14

20%

MonDec 15

TueDec 16

WedDec 17

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 28°F to 40°F. Some snow possible with at least 3 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 7°F below the historical average for December. Normal highs for this period are around 42°F with lows around 25°F.

This Date in Weather History

1932 - Very cold weather prevailed along the West Coast. San Francisco received 0.8 inch of snow, and at the airport the temperature dipped to 20 degrees. At Sacramento CA, the mercury dipped to 17 degrees to establish an all-time record low for that location. Morning lows were below freezing from the 9th to the 15th at Sacramento, and the high on the 11th was just 34 degrees. The cold wave dealt severe damage to truck crops and orange groves in the Sacramento Valley.

Belfast, PA 7 Day Weather Forecast Details

Thursday Dec 11

Night: Scattered flurries. Mostly clear, with a low around 19. West wind around 10 mph, with gusts as high as 20 mph.

Friday Dec 12

Day: Sunny, with a high near 33. West wind 5 to 10 mph, with gusts as high as 20 mph.

Night: Increasing clouds, with a low around 17. West wind around 5 mph becoming calm in the evening.

Saturday Dec 13

Day: Mostly cloudy, with a high near 37. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Night: Snow, mainly after 10pm. Low around 23. West wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Sunday Dec 14

Day: A slight chance of snow before 10am. Partly sunny, with a high near 28. Chance of precipitation is 20%.

Night: Partly cloudy, with a low around 14.

Monday Dec 15

Day: Partly sunny, with a high near 28.

Night: Mostly cloudy, with a low around 17.

Tuesday Dec 16

Day: Mostly sunny, with a high near 31.

Night: Mostly cloudy, with a low around 20.

Wednesday Dec 17

Day: Mostly cloudy, with a high near 40.

Night: Mostly cloudy, with a low around 29.

Thursday Dec 18

Day: A chance of showers. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.

About Belfast, PA

Belfast is a census-designated place (CDP) in Plainfield Township in Northampton County, Pennsylvania, United States. It is part of the Lehigh Valley metropolitan area, which had a population of 861,899 and was the 68th-most populous metropolitan area in the U.S. as of the 2020 census. As of the 2010 census, the village's population was 1,257. Located in one of the first settled areas in the township, the village is believed to have been named for the city of Belfast in Northern Ireland. Its settlers, who were predominantly German and Welsh, arrived in the area in the late 18th century. The village was originally known as Belleville or Bellville because of its scenic view. The name Belfast came into use sometime after the Civil War.

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.

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