What is today's weather forecast for Mount Lebanon, PA?

Today's forecast for Mount Lebanon shows a low of 12 degrees Fahrenheit. Partly cloudy, with a low around 12.

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

The 7-day forecast for Mount Lebanon shows highs from 28 to 39 degrees and lows from 12 to 28 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in Mount Lebanon, PA this week?

Yes, rain is possible in Mount Lebanon this week. Precipitation chances: Sunday (30% chance), Tuesday (60% chance), Wednesday (80% chance), Thursday (50% chance).

How accurate is the Mount Lebanon weather forecast?

WeatherForYou provides highly accurate Mount Lebanon 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.

Mount Lebanon, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

25°F
Feels Like 25°F

Humidity 66% Dew Point 15°F Wind Calm Barometer 30.28 in.

Report from a MADIS/MESONET weather station 2.2 mi. ENE of central Mount Lebanon
at 6:05 PM Thu, Dec 4, 2025

Point Forecast at a Glance

ThuDec 4

FriDec 5

SatDec 6

SunDec 7

30%

MonDec 8

TueDec 9

60%

WedDec 10

60%

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 28°F to 39°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 8°F below the historical average for December. Normal highs for this period are around 42°F with lows around 26°F.

This Date in Weather History

1786 - The first of two great early December storms began. The storm produced 18 inches of snow at Morristown NJ, and twenty inches of snow at New Haven CT. It also resulted in high tides at Nantucket which did great damage.

Mount Lebanon, PA 7 Day Weather Forecast Details

Thursday Dec 4

Night: Partly cloudy, with a low around 12. North wind around 6 mph becoming light and variable.

Friday Dec 5

Day: Increasing clouds, with a high near 34. Light and variable wind becoming south around 6 mph in the morning.

Night: Cloudy, then gradually becoming partly cloudy, with a low around 22. Southwest wind 3 to 6 mph.

Saturday Dec 6

Day: Mostly cloudy, with a high near 37. Southwest wind 7 to 10 mph.

Night: Mostly cloudy, with a low around 27. West wind around 6 mph becoming calm in the evening.

Sunday Dec 7

Day: A chance of rain and snow after 1pm. Cloudy, with a high near 36. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.

Monday Dec 8

Day: Partly sunny, with a high near 28.

Night: Partly cloudy, with a low around 14.

Tuesday Dec 9

Day: Snow likely, mainly after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.

Night: A chance of snow. Cloudy, with a low around 28. Chance of precipitation is 50%.

Wednesday Dec 10

Day: Rain and snow likely. Cloudy, with a high near 39. Chance of precipitation is 60%.

Night: Rain and snow. Low around 26. Chance of precipitation is 80%.

Thursday Dec 11

Day: A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.

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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