New Castle, PA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for New Castle, PA in one place.
Sunny, with a high near 76. Northeast wind around 2 mph.
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: May 30, 2026 6:07 PM EDT.
The active forecast window currently covers May 31 to Jun 5, 2026 for New Castle, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 5, 2026
- Latest sync
- May 30, 2026 6:07 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in New Castle
Friday looks like the warmest upcoming period in New Castle at 86 degrees F.
Sunday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Friday at about 2 to 10 mph SW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 30, 2026 6:07 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- PBZ
- Radar station
- KPBZ
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 48. North wind around 2 mph.
Mostly sunny, with a high near 78. North wind 0 to 7 mph.
Mostly clear, with a low around 50.
Sunny, with a high near 76.
Mostly clear, with a low around 50.
Sunny, with a high near 78.
Mostly clear, with a low around 51.
Sunny, with a high near 84.
Mostly clear, with a low around 58.
Mostly sunny, with a high near 86.
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Sunny
|
76°F |
2 mph
NE
|
|
Sunday Night
May 31
|
Mostly Clear
|
48°F |
2 mph
N
|
|
Monday
Jun 1
|
Mostly Sunny
|
78°F |
0 to 7 mph
N
|
|
Monday Night
Jun 1
|
Mostly Clear
|
50°F |
2 to 6 mph
N
|
|
Tuesday
Jun 2
|
Sunny
|
76°F |
2 to 9 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
50°F |
1 to 8 mph
N
|
|
Wednesday
Jun 3
|
Sunny
|
78°F |
0 to 7 mph
N
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
51°F |
0 to 5 mph
N
|
|
Thursday
Jun 4
|
Sunny
|
84°F |
0 to 5 mph
NW
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
58°F |
0 to 3 mph
W
|
|
Friday
Jun 5
|
Mostly Sunny
|
86°F |
2 to 10 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
63°F |
5 to 8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around New Castle.
