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New Castle, PA 16103 Weather
Current conditions
Observed at New Castle Municipal Airport · 39 min ago
Forecast
10-day-
This Afternoon
Sunny, with a high near 65. Northeast wind around 3 mph.
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Tonight
Areas of frost after 2am. Mostly clear, with a low around 34. North wind around 2 mph.
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Thursday
Areas of frost before 9am. Sunny, with a high near 66. North wind 1 to 7 mph.
National Weather Service forecast updated 2 hrs ago.
Hourly
Hourly forecast- Now63°
- 6 PM58°
- 7 PM54°
- 8 PM48°
- 9 PM45°
- 10 PM42°
- 11 PM40°
- Thu12 AM39°
- 1 AM38°
- 2 AM36°
- 3 AM35°
- 4 AM34°
- 5 AM34°
- 6 AM34°
- 7 AM34°
- 8 AM34°
- 9 AM38°
- 10 AM47°
- 11 AM54°
- 12 PM58°
- 1 PM62°
- 2 PM64°
- 3 PM65°
- 4 PM65°
10-day forecast
Details- TodayOct 21Sunny34°65°
- ThuOct 22Areas Of Frost then Sunny42°66°
- FriOct 23Mostly Sunny32°63°
- SatOct 24Sunny34°64°
- SunOct 25Sunny38°67°
- MonOct 26Mostly Sunny43°69°
- TueOct 27Mostly Sunny40°66°
- WedOct 28Mostly sunny46°67°
- ThuOct 29Sunny0.02 in49°69°
- FriOct 30Cloudy0.21 in45°56°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Pennsylvania
More weather news-
Seasonable sunshine and temperatures continue throughout the week in south central PennsylvaniaAt or above average temperatures and 10 days of dry weather ahead. Tuesday looks to be the warmest day of the workweek. Expect bright blue skies and highs climbing to around 70 degrees. From Wednesday through Friday…
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Impact: Frost & freeze alerts issued for some on Sunday night; sunny stretch next week in south central PennsylvaniaAnother chilly and frosty night across south central Pennsylvania with lows dropping into the 30s. The National Weather Service has issued freeze warnings and frost advisories for parts of the Susquehanna Valley where…
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Freeze Watch Upgraded to Warning for Almost All of Pennsylvania as Conditions WorsenFreeze Warnings are now in effect for most of Pennsylvania from 1 a.m. to 9 a.m. EDT Sunday, with lows between 25 and 30 degrees expected in central Pennsylvania. The earlier Freeze Watches have been upgraded to…
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Freeze warning in Pennsylvania after wet Saturday | NEXT WeatherCBS News Freeze warning in Pennsylvania after wet Saturday | NEXT Weather Philadelphia region sees more than 20-degree drop in temperatures Saturday Camden Catholic beats Kipp Cooper Norcross and more in Week 6 of…
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Pennsylvania weather: Cold, cloudy, breezy in upper 40sAlert!: Freeze watch Saturday night through Sunday morning (WBRE/WYOU) — Skies will clear and winds will diminish Saturday night with high pressure moving overhead. The clear sky and light winds will allow for cooling…
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Freeze Warning issued for all of western Pennsylvania as overnight temperatures will dropOctober 17, 2026 / 6:59 AM EDT / CBS Pittsburgh There are a few showers this morning, but clouds will quickly clear out this afternoon with sunshine and highs well below normal at 50 degrees. Overnight, we are going…
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Dangerous Freeze Watches Issued for Ohio, Pennsylvania and New York as Temperatures PlummetFreeze Watches are in effect from late Saturday night through Sunday morning across Ohio, Pennsylvania, western New York, West Virginia, Maryland and Virginia, with lows as cold as 25 degrees possible. A strong cold…
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Freeze watch from Saturday night through Sunday morning in Western PennsylvaniaThe National Weather Service has issued a freeze watch for counties across Western Pennsylvania from late Saturday night through early Sunday morning. Temperatures as low as 30 degrees are possible in some areas. Frost…
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Severe weather is moving through South-Central Pennsylvania, and we're providing live updates below as conditions develop. As watches and warnings are issued by the National Weather Service, you'll see those appear in…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- WedGood (35)
- ThuGood (40)
- FriGood (40)
Mercer County, PA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyBeaver Falls 1 Ne, records since 2011. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Youngstown 31 km
- Warren 51 km
- Boardman 30 km
- Austintown 40 km
- Cranberry Township 38 km
- Allison Park 56 km
- Niles 44 km
- Hermitage 30 km
- Franklin Park 49 km
- Sharon 31 km
- Butler 38 km
- Fernway 36 km
Forecasters' discussion
From the National Weather Service office in PBZ, issued 3 hrs ago
What Has Changed
Frost Advisory in effect from 2am to 9am Thursday
Key Messages
1) Frost Advisory in effect Thursday morning for portions of the region. Otherwise, the stretch for dry weather continues.
Discussion
KEY MESSAGE 1... Over the next 24 hours, strengthening northerly flow will promote lower dew points early Thursday morning. Combined with radiational cooling and sufficient dry air, temperatures are expected to fall into the low to mid-30s, increasing the potential for frost. A Frost Advisory has been issued for counties that have not yet experienced a hard freeze.
Aside from the potential for frost headlines Friday and Saturday nights and patchy fog early in the morning, quiet weather is expected to persist under high pressure through at least midweek.
Aviation
A high-confidence VFR forecast continues through the week. Light wind becoming calm overnight. Return to light northerly wind tomorrow. The only localized impact will be morning river valley fog with HLG/FKL being the most likely to have impacts between 11Z and 13Z.
Outlook... Outside of any morning river valley fog, VFR is highly likely through Sunday under high pressure.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.