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

Pittsburgh/Butler Regional Airport (KBTP)

Lat: 40.78°NLon: 79.96°WElev: 1248ft.

Overcast

40°F

4°C

Humidity 86%
Wind Speed SW 3 mph
Barometer 29.99 in (1017.2 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 15 Feb 9:56 am EST
Extended Forecast for

3 Miles ENE Portersville PA

  • Today

    Today: A chance of rain, mainly between noon and 4pm. Mostly cloudy, with a high near 45. Light south wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Patchy Fog

  • Washington's Birthday

    Washington's Birthday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 47. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 47 °F

    Areas Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33. Southwest wind 3 to 5 mph.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 20%.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Rain. High near 55. Chance of precipitation is 90%.

    High: 55 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.

    Low: 38 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
A chance of rain, mainly between noon and 4pm. Mostly cloudy, with a high near 45. Light south wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind.
Washington's Birthday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 47. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 33. Southwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 52. Calm wind.
Tuesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 20%.
Wednesday
Rain. High near 55. Chance of precipitation is 90%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 57.
Thursday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Friday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Portersville PA
 40.95°N 80.08°W (Elev. 1198 ft)
Last Update:
6:31 am EST Feb 15, 2026
Forecast Valid:
10am EST Feb 15, 2026-6pm EST Feb 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation