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.

A Few Clouds

74°F

23°C

Humidity 71%
Wind Speed SW 15 G 25 mph
Barometer 29.81 in (1009.2 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 16 Oct 9:53 am EDT
Extended Forecast for

Arnold PA

  • Today

    Today: Showers and thunderstorms before 4pm, then scattered showers. Temperature falling to around 61 by 5pm. West wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F⇓

    Showers
    Likely then
    Showers

  • Tonight

    Tonight: Showers likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 39. West wind 11 to 14 mph becoming north after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Showers
    Likely then
    Isolated
    Showers

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 53. North wind 11 to 15 mph.

    High: 53 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 4am. Otherwise, clear, with a low around 32. Northwest wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 60. Light south wind.

    High: 60 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 4am. Otherwise, clear, with a low around 34.

    Low: 34 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Areas of frost before 9am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms before 4pm, then scattered showers. Temperature falling to around 61 by 5pm. West wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 39. West wind 11 to 14 mph becoming north after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 53. North wind 11 to 15 mph.
Saturday Night
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 32. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 60. Light south wind.
Sunday Night
Patchy frost after 4am. Otherwise, clear, with a low around 34.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arnold PA
 40.57°N 79.76°W (Elev. 860 ft)
Last Update:
6:56 am EDT Oct 16, 2026
Forecast Valid:
10am EDT Oct 16, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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