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

29°F

-2°C

Humidity 63%
Wind Speed W 3 mph
Barometer 30.21 in (1023.4 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 4 Jan 11:56 pm EST
Extended Forecast for

Mechanicsburg PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 39. Calm wind becoming south 5 to 9 mph in the morning.

    High: 39 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 46. Light and variable wind. Chance of precipitation is 20%.

    High: 46 °F

    Cloudy then
    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 37. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 37 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 22. Calm wind.
Monday
Mostly cloudy, with a high near 39. Calm wind becoming south 5 to 9 mph in the morning.
Monday Night
Mostly cloudy, with a low around 28. Calm wind.
Tuesday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 46. Light and variable wind. Chance of precipitation is 20%.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 37. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsburg PA
 40.2°N 77.03°W (Elev. 436 ft)
Last Update:
10:06 pm EST Jan 4, 2026
Forecast Valid:
12am EST Jan 5, 2026-6pm EST Jan 11, 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