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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
New Castle Municipal Airport (KUCP)
Lat: 41.02°NLon: 80.42°WElev: 1072ft.
Fair
70°F
21°C
| Humidity | 51% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 30.03 in (1018.0 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 17 Apr 1:56 pm EDT |
Extended Forecast for
4 Miles ESE Mercer PA
This Afternoon
High: 73 °F
Sunny
Tonight
Low: 55 °F
Mostly Clear
Saturday
High: 78 °F
Slight Chance
Showers then
Showers
LikelySaturday Night
Low: 37 °F
Showers
Sunday
High: 49 °F
Chance
ShowersSunday Night
Low: 28 °F
Chance
ShowersMonday
High: 44 °F
Mostly Sunny
Monday Night
Low: 26 °F
Mostly Clear
Tuesday
High: 63 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 73. Northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 55. Calm wind becoming southeast 5 to 7 mph after midnight.
Saturday
A slight chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 78. South wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 37. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 49. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers before 2am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 73.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles ESE Mercer PA
41.2°N 80.16°W (Elev. 1355 ft)
41.2°N 80.16°W (Elev. 1355 ft)
12:56 pm EDT Apr 17, 2026
2pm EDT Apr 17, 2026-6pm EDT Apr 23, 2026
Additional Resources
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Hourly Weather Forecast
