New Castle, PA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for New Castle, PA in one place.
Mostly sunny, with a high near 87.
Local Weather Overview
This forecast page for New Castle, PA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 3:01 AM EDT.
The active forecast window currently covers Jul 16 to Jul 20, 2026 for New Castle, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 3:01 AM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in New Castle
Thursday looks like the warmest upcoming period in New Castle at 87 degrees F.
Sunday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Thursday at about 2 to 12 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 3:01 AM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KCCX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 62.
Mostly sunny, with a high near 86.
A chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
A chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Mostly Sunny
|
87°F |
2 to 12 mph
W
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
62°F |
2 to 10 mph
W
|
|
Friday
Jul 17
|
Mostly Sunny
|
86°F |
1 to 10 mph
W
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
64°F |
2 to 8 mph
W
|
|
Saturday
Jul 18
|
Showers And Thunderstorms Likely
|
83°F |
5 to 10 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
63°F |
8 mph
W
|
|
Sunday
Jul 19
|
Chance Showers And Thunderstorms
|
79°F |
9 mph
NW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms
|
59°F |
5 to 8 mph
NW
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
77°F |
5 to 8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around New Castle.