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, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

47°F

8°C

Humidity 71%
Wind Speed E 5 mph
Barometer 29.90 in (1012.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 22 Mar 1:56 am EDT
Extended Forecast for

Harrisburg International Airport PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 45. Southeast wind around 6 mph.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 5pm. Some of the storms could be severe. Partly sunny, with a high near 73. Southwest wind 7 to 11 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: 73 °F

    Partly Sunny
    then Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could be severe. Low around 41. North wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Severe
    Thunderstorms
    then Showers

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 50. Northwest wind around 17 mph, with gusts as high as 28 mph.

    High: 50 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. North wind 6 to 11 mph.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °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: A chance of showers after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 45. Southeast wind around 6 mph.
Sunday
A chance of showers and thunderstorms after 5pm. Some of the storms could be severe. Partly sunny, with a high near 73. Southwest wind 7 to 11 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
Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could be severe. Low around 41. North wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 50. Northwest wind around 17 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 29. North wind 6 to 11 mph.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Friday
A chance of showers. Partly sunny, with a high near 52. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.2°N 76.77°W (Elev. 299 ft)
Last Update:
2:16 am EDT Mar 22, 2026
Forecast Valid:
2am EDT Mar 22, 2026-6pm EDT Mar 28, 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