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Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Fog/Mist

34°F

1°C

Humidity 97%
Wind Speed Calm
Barometer 29.89 in (1012.6 mb)
Dewpoint 33°F (1°C)
Visibility 1.00 mi
Last update 18 Feb 8:56 am EST
Extended Forecast for

Hummelstown PA

  • Today

    Today: Rain likely, mainly between 3pm and 5pm. Patchy fog before 1pm. Otherwise, cloudy, with a high near 46. Light east wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain Likely
    and Patchy
    Fog

  • Tonight

    Tonight: Cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Cloudy

  • Thursday

    Thursday: A chance of rain, mainly after 1pm. Cloudy, with a high near 45. Light northeast wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Slight Chance
    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: Rain. Low around 37. East wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Friday

    Friday: Rain, mainly before 1pm. High near 47. Southeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 1pm, then snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Rain/Snow
    Likely

Detailed Forecast

Today
Rain likely, mainly between 3pm and 5pm. Patchy fog before 1pm. Otherwise, cloudy, with a high near 46. Light east wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Cloudy, with a low around 38. Light and variable wind.
Thursday
A chance of rain, mainly after 1pm. Cloudy, with a high near 45. Light northeast wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 37. East wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 1pm. High near 47. Southeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 1pm, then snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Monday
Mostly cloudy, with a high near 38.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
Last Update:
7:21 am EST Feb 18, 2026
Forecast Valid:
9am EST Feb 18, 2026-6pm EST Feb 24, 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