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

Hazardous Weather Conditions

Current conditions at

York, York Airport (KTHV)

Lat: 39.92°NLon: 76.88°WElev: 479ft.

Overcast

72°F

22°C

Humidity 82%
Wind Speed S 5 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 27 Aug 3:53 am EDT
Extended Forecast for

Hallam PA

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 4pm. Some of the storms could be severe. Mostly cloudy, with a high near 86. South wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Chance
    Showers then
    Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Some of the storms could be severe and produce heavy rainfall. Patchy fog between 4am and 5am. Otherwise, mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Severe
    Thunderstorms
    then Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers and thunderstorms after 3pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 85 °F

    Areas Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 85.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely, mainly after 4pm. Some of the storms could be severe. Mostly cloudy, with a high near 86. South wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Some of the storms could be severe and produce heavy rainfall. Patchy fog between 4am and 5am. Otherwise, mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A slight chance of showers and thunderstorms after 3pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 64. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40°N 76.6°W (Elev. 364 ft)
Last Update:
3:11 am EDT Aug 27, 2026
Forecast Valid:
4am EDT Aug 27, 2026-6pm EDT Sep 2, 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