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

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

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

The 7-day forecast for Mechanicsburg shows highs from 29 to 40 degrees and lows from 12 to 26 degrees Fahrenheit. Expect precipitation on 1 day with chances of 20% or higher.

Will it rain in Mechanicsburg, PA this week?

Yes, rain is possible in Mechanicsburg this week. Precipitation chances: Friday (20% chance).

How accurate is the Mechanicsburg weather forecast?

WeatherForYou provides highly accurate Mechanicsburg 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.

Mechanicsburg, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

27°F
Feels Like 27°F

Humidity 80% Dew Point 22°F Wind Calm Barometer 30.08 in.

Report from a MADIS/MESONET weather station 0.7 mi. NNW of central Mechanicsburg
at 2:30 AM Thu, Dec 4, 2025

Point Forecast at a Glance

WedDec 3

ThuDec 4

FriDec 5

20%

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 29°F to 39°F. Mostly dry conditions with only one day showing snow chances.

Climate Context

This week's forecast shows temperatures running 8°F below the historical average for December. Normal highs for this period are around 43°F with lows around 26°F.

This Date in Weather History

1838 - Cleveland Abbe, an American meteorologist and advocate of time zones, was born on this day. He was trained as an astronomer and appointed the director of the Cincinnati Observatory in 1868. He eventually turned to meteorology and inaugurated a public weather service that served as a model for today's National Weather Service.

Mechanicsburg, PA 7 Day Weather Forecast Details

Wednesday Dec 3

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

Thursday Dec 4

Day: Cloudy through mid morning, then gradual clearing, with a high near 37. West wind 5 to 13 mph, with gusts as high as 28 mph.

Night: Mostly clear, with a low around 14. Northwest wind 5 to 7 mph becoming calm in the evening.

Friday Dec 5

Day: A slight chance of snow before 1pm. Mostly cloudy, with a high near 30. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.

Night: Mostly cloudy, with a low around 20. Calm wind.

Saturday Dec 6

Day: Partly sunny, with a high near 38.

Night: Mostly cloudy, with a low around 24.

Sunday Dec 7

Day: Mostly cloudy, with a high near 39.

Night: Mostly cloudy, with a low around 21.

Monday Dec 8

Day: Mostly sunny, with a high near 29.

Night: Partly cloudy, with a low around 12.

Tuesday Dec 9

Day: Partly sunny, with a high near 33.

Night: Mostly cloudy, with a low around 26.

Wednesday Dec 10

Day: Mostly cloudy, with a high near 40.

About Mechanicsburg, PA

Mechanicsburg is a borough in Cumberland County, Pennsylvania, United States. The borough is eight miles (13 km) west of Harrisburg. It is part of the Harrisburg–Carlisle metropolitan statistical area. As of the 2020 census, the population was 9,311, up from 8,981 recorded at the 2010 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.

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