South New Castle, PA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South New Castle, PA in one place.
Sunny, with a high near 77. Northeast wind around 2 mph.
Local Weather Overview
This forecast page for South 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 29, 2026 7:05 PM EDT.
The active forecast window currently covers May 31 to Jun 4, 2026 for South New Castle, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 4, 2026
- Latest sync
- May 29, 2026 7:05 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in South New Castle
Thursday looks like the warmest upcoming period in South New Castle at 82 degrees F.
Sunday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Tuesday at about 2 to 10 mph N.
The forecast from May 31 through Jun 4 stays mostly dry.
Forecast Details
- Last updated
- May 29, 2026 7:05 PM EDT
- Coverage
- 5 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 49.
Sunny, with a high near 78.
Mostly clear, with a low around 50.
Sunny, with a high near 77.
Mostly clear, with a low around 50.
Sunny, with a high near 78.
Mostly clear, with a low around 52.
Sunny, with a high near 82.
Partly cloudy, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Sunny
|
77°F |
2 mph
NE
|
|
Sunday Night
May 31
|
Mostly Clear
|
49°F |
1 mph
N
|
|
Monday
Jun 1
|
Sunny
|
78°F |
0 to 7 mph
N
|
|
Monday Night
Jun 1
|
Mostly Clear
|
50°F |
2 to 7 mph
N
|
|
Tuesday
Jun 2
|
Sunny
|
77°F |
2 to 10 mph
N
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
50°F |
1 to 9 mph
N
|
|
Wednesday
Jun 3
|
Sunny
|
78°F |
1 to 6 mph
N
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
52°F |
0 to 5 mph
N
|
|
Thursday
Jun 4
|
Sunny
|
82°F |
0 to 5 mph
W
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
59°F |
3 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South New Castle.
