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

Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Light Rain Fog

40°F

4°C

Humidity 100%
Wind Speed Calm
Barometer 30.17 in (1022.0 mb)
Dewpoint 40°F (4°C)
Visibility 0.50 mi
Last update 5 Mar 3:56 am EST
Extended Forecast for

Royalton PA

Dense Fog Advisory March 5, 04:08am until March 5, 07:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 04:08am until March 5, 07:00am

    NOW until 7:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 41 °F

    Rain and
    Areas Dense
    Fog

  • Thursday

    Thursday: Rain. Areas of dense fog before 11am. High near 48. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain and
    Areas Dense
    Fog

  • Thursday Night

    Thursday Night: Rain, mainly before 1am. Low around 40. East wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 40 °F

    Rain then
    Rain Likely

  • Friday

    Friday: Cloudy, with a high near 50. East wind 3 to 6 mph.

    High: 50 °F

    Cloudy

  • Friday Night

    Friday Night: A slight chance of rain before 1am. Cloudy, with a low around 43. Southeast wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of showers after 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Cloudy then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely before 1am, then a chance of rain after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

Detailed Forecast

Overnight
Rain. Areas of dense fog. Low around 41. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. Areas of dense fog before 11am. High near 48. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly before 1am. Low around 40. East wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Friday
Cloudy, with a high near 50. East wind 3 to 6 mph.
Friday Night
A slight chance of rain before 1am. Cloudy, with a low around 43. Southeast wind 3 to 5 mph. Chance of precipitation is 20%.
Saturday
A chance of showers after 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers likely before 1am, then a chance of rain after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Royalton PA
 40.2°N 76.74°W (Elev. 308 ft)
Last Update:
2:26 am EST Mar 5, 2026
Forecast Valid:
4am EST Mar 5, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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