Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fog/Mist

49°F

9°C

Humidity 97%
Wind Speed NW 5 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Wind Chill47°F (8°C)
Last update 21 Mar 5:56 am EDT
Extended Forecast for

4 Miles N Plainfield PA

Dense Fog Advisory until March 21, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until March 21, 08:00am

    NOW until 8:00am Sat

    Dense Fog Advisory

  • Today

    High: 56 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. East wind 6 to 9 mph becoming south after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms after 2pm. Some of the storms could be severe.  Partly sunny, with a high near 74. Southwest wind 9 to 11 mph.  Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: A chance of rain and thunderstorms before 8pm, then rain and possibly a thunderstorm between 8pm and 2am, then rain after 2am. Some of the storms could be severe.  Low around 38. North wind 10 to 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 38 °F

    Severe
    Thunderstorms
    then Rain

  • Monday

    Monday: Rain, possibly mixing with snow after 11am, then gradually ending.  High near 46. Northwest wind around 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Today
Areas of dense fog before 8am. Otherwise, partly sunny, with a high near 56. North wind 5 to 8 mph becoming calm in the afternoon.
Tonight
Mostly cloudy, with a low around 42. East wind 6 to 9 mph becoming south after midnight.
Sunday
A chance of rain and thunderstorms after 2pm. Some of the storms could be severe. Partly sunny, with a high near 74. Southwest wind 9 to 11 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain and thunderstorms before 8pm, then rain and possibly a thunderstorm between 8pm and 2am, then rain after 2am. Some of the storms could be severe. Low around 38. North wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
Rain, possibly mixing with snow after 11am, then gradually ending. High near 46. Northwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 54.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Friday
A chance of rain. Partly sunny, with a high near 48. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Plainfield PA
 40.26°N 77.42°W (Elev. 1768 ft)
3:36 am EDT Mar 21, 2026
6am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database