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Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

A Few Clouds

45°F

7°C

Humidity 49%
Wind Speed NE 5 mph
Barometer 30.18 in (1022.6 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 12 May 2:53 am EDT
Extended Forecast for

Chalfant PA

Frost Advisory until May 12, 08:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until May 12, 08:00am

    NOW until 8:00am Tue

    Frost Advisory

  • Overnight

    Low: 41 °F

    Patchy Frost

  • Tuesday

    Tuesday: Patchy frost before 7am. Otherwise, increasing clouds, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 73 °F

    Patchy Frost
    then
    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of showers after 5am. Increasing clouds, with a low around 54. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 69. Southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 8pm, then a chance of showers. Mostly cloudy, with a low around 45. West wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 20%.

    High: 57 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy frost after 5am. Otherwise, partly cloudy, with a low around 41. Calm wind.
Tuesday
Patchy frost before 7am. Otherwise, increasing clouds, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A chance of showers after 5am. Increasing clouds, with a low around 54. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 69. Southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 8pm, then a chance of showers. Mostly cloudy, with a low around 45. West wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny and hot, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chalfant PA
 40.4°N 79.84°W (Elev. 843 ft)
Last Update:
2:21 am EDT May 12, 2026
Forecast Valid:
3am EDT May 12, 2026-6pm EDT May 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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