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

Schuylkill County/Joe Zerbey Airport (KZER)

Lat: 40.71°NLon: 76.37°WElev: 1730ft.

Mostly Cloudy

66°F

19°C

Humidity 100%
Wind Speed E 7 mph
Barometer 30.22 in
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 16 Aug 5:35 am EDT
Extended Forecast for

Saint Clair PA

  • Overnight

    Overnight: A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 10am. Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 86. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Patchy Fog

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 90. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    Showers

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, mainly after 10am. Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 86. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 66. Calm wind.
Sunday
A chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 90. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 61.
Tuesday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Clair PA
 40.71°N 76.18°W (Elev. 699 ft)
Last Update:
2:03 am EDT Aug 16, 2025
Forecast Valid:
5am EDT Aug 16, 2025-6pm EDT Aug 22, 2025
 
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