National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Overcast

32°F

0°C

Humidity 92%
Wind Speed SE 3 mph
Barometer 30.10 in (1019.7 mb)
Dewpoint 30°F (-1°C)
Visibility 7.00 mi
Last update 27 Dec 9:56 am EST
Extended Forecast for

Mechanicsburg PA

  • Today

    Today: Mostly sunny, with a high near 38. North wind 3 to 6 mph.

    High: 38 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers after 1pm. Cloudy, with a high near 42. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Cloudy then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely. Cloudy, with a low around 38. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers. Partly sunny, with a high near 55. Breezy, with a south wind 11 to 20 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 31. Breezy.

    High: 31 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 38. North wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 25. Calm wind.
Sunday
A chance of showers after 1pm. Cloudy, with a high near 42. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers likely. Cloudy, with a low around 38. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers. Partly sunny, with a high near 55. Breezy, with a south wind 11 to 20 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly cloudy, with a low around 25. Breezy.
Tuesday
Mostly cloudy, with a high near 31. Breezy.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Mostly cloudy, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 24.
New Year's Day
Mostly cloudy, with a high near 34.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
Sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsburg PA
 40.22°N 77°W (Elev. 440 ft)
Last Update:
7:06 am EST Dec 27, 2025
Forecast Valid:
10am EST Dec 27, 2025-6pm EST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation