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Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

35°F

2°C

Humidity 85%
Wind Speed Calm
Barometer 29.84 in (1010.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 21 Feb 4:56 am EST
Extended Forecast for

Hummelstown PA

Winter Storm Watch February 22, 05:00am until February 23, 01:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 46. West wind 6 to 9 mph.

    High: 46 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A chance of snow, mainly after 3am. Increasing clouds, with a low around 32. Calm wind. Chance of precipitation is 30%.

    Low: 32 °F

    Mostly Clear
    then Chance
    Snow

  • Sunday

    Sunday: Snow before 10am, then snow, possibly mixed with rain between 10am and 4pm, then snow after 4pm. High near 35. Calm wind becoming northeast 5 to 8 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow. Low around 29. North wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 29 °F

    Snow

  • Monday

    Monday: A chance of snow showers before 1pm. Cloudy, with a high near 38. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    High: 38 °F

    Chance Snow
    Showers and
    Breezy

  • Monday Night

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

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow showers after 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 46. West wind 6 to 9 mph.
Tonight
A chance of snow, mainly after 3am. Increasing clouds, with a low around 32. Calm wind. Chance of precipitation is 30%.
Sunday
Snow before 10am, then snow, possibly mixed with rain between 10am and 4pm, then snow after 4pm. High near 35. Calm wind becoming northeast 5 to 8 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Sunday Night
Snow. Low around 29. North wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Monday
A chance of snow showers before 1pm. Cloudy, with a high near 38. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
A chance of rain and snow showers after 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
Wednesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly cloudy, with a high near 46. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 44.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
Last Update:
4:41 am EST Feb 21, 2026
Forecast Valid:
5am EST Feb 21, 2026-6pm EST Feb 27, 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