Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Fair

58°F

14°C

Humidity 84%
Wind Speed E 3 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 18 Apr 3:56 am EDT
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Partly sunny, with a high near 76. Southeast wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 76 °F

    Partly Sunny

  • Tonight

    Tonight: Showers, mainly after 9pm.  Low around 47. Southeast wind 6 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers, mainly before 2pm.  High near 54. Northwest wind 14 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. West wind 5 to 9 mph.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 76. Southeast wind 5 to 14 mph, with gusts as high as 22 mph.
Tonight
Showers, mainly after 9pm. Low around 47. Southeast wind 6 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers, mainly before 2pm. High near 54. Northwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Partly cloudy, with a low around 38. West wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 50. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.22°N 76.76°W (Elev. 446 ft)
3:24 am EDT Apr 18, 2026
4am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
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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