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

45°F

7°C

Humidity 100%
Wind Speed Calm
Barometer 29.88 in (1012.6 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 6 Nov 5:56 am EST
Extended Forecast for

Arnold PA

  • Today

    Today: Scattered showers, mainly after 4pm. Increasing clouds, with a high near 63. Light and variable wind becoming west 6 to 11 mph in the morning. Chance of precipitation is 30%.

    High: 63 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 32. West wind 5 to 9 mph becoming calm.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Scattered showers, mainly between 9am and 4pm. Increasing clouds, with a high near 52. West wind 9 to 17 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. West wind 8 to 14 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58. Southwest wind 10 to 17 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Scattered showers, mainly after 4pm. Increasing clouds, with a high near 63. Light and variable wind becoming west 6 to 11 mph in the morning. Chance of precipitation is 30%.
Tonight
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 32. West wind 5 to 9 mph becoming calm.
Saturday
Scattered showers, mainly between 9am and 4pm. Increasing clouds, with a high near 52. West wind 9 to 17 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, with a low around 37. West wind 8 to 14 mph.
Sunday
Sunny, with a high near 58. Southwest wind 10 to 17 mph.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 36.
Veterans Day
Mostly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
A chance of rain. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arnold PA
 40.57°N 79.76°W (Elev. 860 ft)
Last Update:
6:21 am EST Nov 6, 2026
Forecast Valid:
6am EST Nov 6, 2026-6pm EST Nov 12, 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