New Castle, PA 16102 Weather

Lawrence County2:52 AM EDT40.97°N, 80.39°W

Current conditions

Clear
34°
Clear
Feels like 34°
High 66°·Low 33° tonight
WindCalm
Humidity100%
Dew point34°
Pressure30.19 inHg
Visibility10 mi
Cloud cover16%
UV index0 Low
Sunrise7:41 AM
Sunset6:32 PM

Observed at New Castle Municipal Airport · 1 hr ago

Forecast

10-day
  • Tonight

    Areas of frost after 1am. Mostly clear, with a low around 33. North wind around 2 mph.

  • Thursday

    Areas of frost before 9am. Sunny, with a high near 66. Northwest wind 0 to 7 mph.

  • Thursday Night

    Mostly clear, with a low around 41. North wind 0 to 6 mph.

National Weather Service forecast updated 12 hrs ago.

  1. Now Patchy Frost 36°
  2. 3 AM Patchy Frost 34°
  3. 4 AM Areas Of Frost 34°
  4. 5 AM Areas Of Frost 33°
  5. 6 AM Areas Of Frost 33°
  6. 7 AM Areas Of Frost 33°
  7. 8 AM Areas Of Frost 33°
  8. 9 AM Sunny 37°
  9. 10 AM Sunny 46°
  10. 11 AM Sunny 54°
  11. 12 PM Sunny 58°
  12. 1 PM Sunny 62°
  13. 2 PM Sunny 65°
  14. 3 PM Sunny 65°
  15. 4 PM Sunny 66°
  16. 5 PM Sunny 65°
  17. 6 PM Mostly Clear 62°
  18. 7 PM Clear 57°
  19. 8 PM Clear 51°
  20. 9 PM Mostly Clear 47°
  21. 10 PM Mostly Clear 46°
  22. 11 PM Mostly Clear 45°
  23. Fri12 AM Mostly Clear 44°
  24. 1 AM Partly Cloudy 44°

10-day forecast

Details
  1. TonightOct 21 Mostly Clear then Areas Of Frost Mostly Clear then Areas Of Frost33°
  2. TodayOct 22 Areas Of Frost then Sunny Areas Of Frost then Sunny41°66°
  3. FriOct 23 Mostly Sunny Mostly Sunny31°63°
  4. SatOct 24 Sunny Sunny34°65°
  5. SunOct 25 Sunny Sunny38°67°
  6. MonOct 26 Mostly Sunny Mostly Sunny43°69°
  7. TueOct 27 Mostly Sunny Mostly Sunny40°66°
  8. WedOct 28 Partly Sunny Partly Sunny11%64°
  9. ThuOct 29 Partly cloudy Partly cloudy38°57°
  10. FriOct 30 Cloudy Cloudy38°60°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news in Pennsylvania

More weather news

Air quality

44
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • ThuGood (40)
  • FriGood (40)
  • SatGood

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

Sunrise 7:41 AM
Sunset 6:32 PM
Daylight 10 h 50 min (−2 min 33 s tomorrow)
Waxing Gibbous · 83% lit
Moonrise 4:36 PM Moonset 3:44 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low61° / 40°
Record high80° (2024)
Record low30° (2018)
Wettest0.84 in (1970)
Month to date3.13 in (normal 2.07 in)

Beaver Falls 1 Ne, records since 2011. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in PBZ, issued 13 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 4Conservative index and reflects what the press published. Terms of use.