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

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Mostly Cloudy

34°F

1°C

Humidity 76%
Wind Speed Calm
Barometer 29.66 in (1004.7 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 14 Jan 1:56 am EST
Extended Forecast for

Lawn PA

  • Overnight

    Overnight: Cloudy, with a low around 35. South wind around 8 mph.

    Low: 35 °F

    Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 9am. Cloudy, with a high near 47. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely before 2am, then a chance of rain and snow between 2am and 4am, then a chance of snow after 4am. Cloudy, with a low around 25. Light and variable wind becoming northwest 10 to 15 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 25 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Partly sunny, with a high near 29. West wind around 18 mph, with gusts as high as 30 mph.

    High: 29 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17. West wind 13 to 17 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow showers. Partly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 35. South wind around 8 mph.
Wednesday
Rain likely, mainly after 9am. Cloudy, with a high near 47. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely before 2am, then a chance of rain and snow between 2am and 4am, then a chance of snow after 4am. Cloudy, with a low around 25. Light and variable wind becoming northwest 10 to 15 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Partly sunny, with a high near 29. West wind around 18 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 17. West wind 13 to 17 mph, with gusts as high as 24 mph.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
A chance of snow showers. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Partly sunny, with a high near 29.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lawn PA
 40.22°N 76.56°W (Elev. 479 ft)
Last Update:
2:26 am EST Jan 14, 2026
Forecast Valid:
2am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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