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

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Light Rain Fog/Mist

72°F

22°C

Humidity 91%
Wind Speed S 7 mph
Barometer 30.04 in (1016.7 mb)
Dewpoint 69°F (21°C)
Visibility 5.00 mi
Last update 16 Aug 3:53 am EDT
Extended Forecast for

Chalfant PA

Flood Watch August 16, 04:39am until August 17, 08:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 16, 04:39am until August 17, 08:00am

    NOW until 8:00am Mon

    Flood Watch

  • Overnight

    Low: 70 °F

    Showers

  • Sunday

    Sunday: Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 83. South wind 7 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 83 °F

    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Low around 70. Southwest wind 7 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    T-storms then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers between 10am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. West wind 7 to 11 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 60. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 60 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 70. Southeast wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 83. South wind 7 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Low around 70. Southwest wind 7 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers between 10am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. West wind 7 to 11 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 60. Northwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Thursday
A chance of showers before 8am. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 60.
Saturday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chalfant PA
 40.4°N 79.84°W (Elev. 843 ft)
Last Update:
2:47 am EDT Aug 16, 2026
Forecast Valid:
4am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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