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- Weather Observers Needed-Learn More About CoCoRaHS
- The Growing Season Active for much of eastern OH, northern WV and southwestern PA
- Check Out Our Graphical Hazardous Weather Outlook
- Pennsylvania's Severe Weather Awareness Week | April 13-17, 2026
- Observe down trees, hail, of flooding? We would love to know!
Hazardous Weather Conditions
Current conditions at
Pittsburgh/Butler Regional Airport (KBTP)
Lat: 40.78°NLon: 79.96°WElev: 1248ft.
Partly Cloudy
66°F
19°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 29.94 in (1013.7 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 16 Apr 12:56 am EDT |
Extended Forecast for
Arnold PA
Overnight
Low: 64 °F
Chance
T-stormsThursday
High: 82 °F
Partly Sunny
then Showers
LikelyThursday Night
Low: 59 °F
Showers
Likely then
Chance
ShowersFriday
High: 77 °F
Slight Chance
ShowersFriday Night
Low: 56 °F
Partly Cloudy
Saturday
High: 82 °F
Chance
Showers then
Showers
LikelySaturday Night
Low: 44 °F
Showers
LikelySunday
High: 57 °F
Chance
ShowersSunday Night
Low: 32 °F
Mostly Cloudy
Detailed Forecast
Overnight
A chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 64. Light south wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 82. Southwest wind 7 to 14 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 59. West wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers between 8am and 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 77. West wind around 6 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 56. Calm wind.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Sunday
A chance of showers. Partly sunny, with a high near 57. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
Partly sunny, with a high near 70.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Arnold PA
40.57°N 79.76°W (Elev. 860 ft)
40.57°N 79.76°W (Elev. 860 ft)
12:36 am EDT Apr 16, 2026
1am EDT Apr 16, 2026-6pm EDT Apr 22, 2026
Additional Resources
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Hourly Weather Forecast
