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

Hazardous Weather Conditions

Current conditions at

Pittsburgh/Butler Regional Airport (KBTP)

Lat: 40.78°NLon: 79.96°WElev: 1248ft.

Mostly Cloudy

41°F

5°C

Humidity 43%
Wind Speed W 13 G 17 mph
Barometer 30.32 in (1028.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 20 Apr 2:56 pm EDT
Extended Forecast for

Petrolia PA

Freeze Warning April 20, 11:00pm until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 44. Northwest wind around 9 mph.

    High: 44 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread frost after 1am. Otherwise, mostly clear, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Clear
    then Frost

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. South wind 5 to 9 mph.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 50. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 8am. Partly sunny, with a high near 70. West wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.

    High: 77 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 44. Northwest wind around 9 mph.
Tonight
Widespread frost after 1am. Otherwise, mostly clear, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 64. South wind 5 to 9 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 50. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, mainly before 8am. Partly sunny, with a high near 70. West wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Petrolia PA
 41.01°N 79.72°W (Elev. 1194 ft)
Last Update:
2:21 pm EDT Apr 20, 2026
Forecast Valid:
3pm EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation