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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

58°F

14°C

Humidity 42%
Wind Speed Vrbl 5 mph
Barometer 29.90 in (1012.7 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 21 Mar 4:56 pm EDT
Extended Forecast for

Harrisburg, Capital City Airport PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Calm wind becoming southeast around 6 mph after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Partly sunny, with a high near 76. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Partly Sunny
    then Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm. Some of the storms could be severe. Low around 42. North wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Severe
    Thunderstorms
    then Showers

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 50. Northwest wind around 14 mph, with gusts as high as 25 mph.

    High: 50 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. North wind 5 to 10 mph.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Tuesday Night

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

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 44. Calm wind becoming southeast around 6 mph after midnight.
Sunday
A chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Partly sunny, with a high near 76. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm. Some of the storms could be severe. Low around 42. North wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 50. Northwest wind around 14 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 29. North wind 5 to 10 mph.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
A chance of showers between 8am and 2pm. Partly sunny, with a high near 60. Chance of precipitation is 30%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
A chance of showers. Mostly sunny, with a high near 54. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg, Capital City Airport PA
 40.23°N 76.85°W (Elev. 249 ft)
Last Update:
2:21 pm EDT Mar 21, 2026
Forecast Valid:
5pm EDT Mar 21, 2026-6pm EDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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