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

Hazardous Weather Conditions

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

A Few Clouds

91°F

33°C

Humidity 47%
Wind Speed SE 10 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 15 Aug 2:56 pm EDT
Extended Forecast for

Mechanicsburg PA

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 5 mph. Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 9pm, then isolated showers after 4am. Patchy fog between 4am and 5am. Otherwise, partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Scattered
    T-storms then
    Patchy Fog

  • Saturday

    Saturday: Scattered showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 88. Light southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Scattered
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.

    High: 79 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 5 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms before 9pm, then isolated showers after 4am. Patchy fog between 4am and 5am. Otherwise, partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Scattered showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 88. Light southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly clear, with a low around 70. Calm wind.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsburg PA
 40.22°N 77°W (Elev. 440 ft)
Last Update:
12:53 pm EDT Aug 15, 2025
Forecast Valid:
3pm EDT Aug 15, 2025-6pm EDT Aug 22, 2025
 
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