What is today's weather forecast for Big Run, PA?

Today's forecast for Big Run shows a low of 24 degrees Fahrenheit. Mostly cloudy, then gradually becoming mostly clear, with a low around 24.

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

The 7-day forecast for Big Run shows highs from 31 to 47 degrees and lows from 18 to 34 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in Big Run, PA this week?

Yes, rain is possible in Big Run this week. Precipitation chances: Thursday (100% chance), Friday (60% chance), Saturday (30% chance), Monday (30% chance), Tuesday (50% chance).

How accurate is the Big Run weather forecast?

WeatherForYou provides highly accurate Big Run 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.

Big Run, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

35°F
Feels Like 35°F

Humidity 74% Dew Point 27°F Wind Calm Barometer 30.17 in.

Report from a personal weather station 6.1 mi. WSW of central Big Run
at 7:30 PM Wed, Dec 17, 2025

Point Forecast at a Glance

WedDec 17

ThuDec 18

FriDec 19

60%

SatDec 20

SunDec 21

MonDec 22

TueDec 23

50%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 31°F to 47°F. Unsettled weather expected with rain or snow likely on at least 5 days.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 38°F and lows around 22°F.

This Date in Weather History

1884 - A three week blockade of snow began at Portland, OR. A record December total of 34 inches was received.

Big Run, PA 7 Day Weather Forecast Details

Wednesday Dec 17

Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. West wind around 5 mph becoming calm.

Thursday Dec 18

Day: Mostly sunny, with a high near 47. Southeast wind 8 to 11 mph, with gusts as high as 23 mph.

Night: Rain, mainly after 7pm. Low around 34. Southeast wind 11 to 15 mph becoming southwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday Dec 19

Day: Snow showers likely, possibly mixed with rain, becoming all snow after 10am. Mostly cloudy, with a high near 36. Breezy, with a west wind 14 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Night: Mostly cloudy, with a low around 18. West wind 8 to 16 mph, with gusts as high as 31 mph.

Saturday Dec 20

Day: Mostly cloudy, with a high near 41.

Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.

Sunday Dec 21

Day: Partly sunny, with a high near 34.

Night: Mostly cloudy, with a low around 18.

Monday Dec 22

Day: Partly sunny, with a high near 31.

Night: A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

Tuesday Dec 23

Day: A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 50%.

Night: A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

Wednesday Dec 24

Day: Partly sunny, with a high near 36.

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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