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

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fog/Mist

40°F

4°C

Humidity 97%
Wind Speed W 3 mph
Barometer 29.81 in (1009.6 mb)
Dewpoint 39°F (4°C)
Visibility 5.00 mi
Last update 11 Jan 12:56 am EST
Extended Forecast for

Summerdale PA

  • Overnight

    Overnight: Patchy fog before 3am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 33. West wind 5 to 8 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Patchy Fog

  • Sunday

    Sunday: Scattered rain and snow showers between 1pm and 3pm. The snow could be heavy at times. Mostly sunny, with a high near 42. West wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Sunny then
    Scattered
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. West wind 14 to 18 mph, with gusts as high as 36 mph.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. Southwest wind 8 to 10 mph.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Light west wind.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 37.

    Low: 37 °F

    Cloudy

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

    Low: 29 °F

    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog before 3am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 33. West wind 5 to 8 mph, with gusts as high as 21 mph.
Sunday
Scattered rain and snow showers between 1pm and 3pm. The snow could be heavy at times. Mostly sunny, with a high near 42. West wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Partly cloudy, with a low around 28. West wind 14 to 18 mph, with gusts as high as 36 mph.
Monday
Mostly sunny, with a high near 42. Southwest wind 8 to 10 mph.
Monday Night
Partly cloudy, with a low around 29. Light west wind.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Cloudy, with a low around 37.
Wednesday
A chance of showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Thursday
A chance of rain and snow showers before 1pm. Partly sunny, with a high near 34. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 33.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summerdale PA
 40.28°N 76.96°W (Elev. 400 ft)
Last Update:
1:06 am EST Jan 11, 2026
Forecast Valid:
1am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation