Castle Shannon, PA Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Castle Shannon, PA in one place.
Clear, with a low around 36. Southeast wind around 1 mph.
Local Weather Overview
This forecast page for Castle Shannon, 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: Oct 19, 2026 5:20 AM EDT.
The active forecast window currently covers Oct 19 to Oct 25, 2026 for Castle Shannon, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 19 to Oct 25, 2026
- Latest sync
- Oct 19, 2026 5:20 AM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Castle Shannon
Monday looks like the warmest upcoming period in Castle Shannon at 64 degrees F.
Overnight is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Tuesday at about 2 to 8 mph N.
The forecast from Oct 19 through Oct 25 stays mostly dry.
Forecast Details
- Last updated
- Oct 19, 2026 5:20 AM EDT
- Coverage
- 7 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
Areas of frost before 9am. Sunny, with a high near 64. Northeast wind 0 to 3 mph.
Clear, with a low around 38. North wind around 3 mph.
Mostly sunny, with a high near 64. North wind 2 to 8 mph.
Mostly clear, with a low around 38. Northeast wind around 6 mph.
Sunny, with a high near 63.
Mostly clear, with a low around 38.
Sunny, with a high near 64.
Mostly clear, with a low around 42.
Sunny, with a high near 61.
Mostly clear, with a low around 38.
Sunny, with a high near 62.
Mostly clear, with a low around 38.
Sunny, with a high near 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 19
|
Clear
|
36°F |
1 mph
SE
|
|
Monday
Oct 19
|
Areas Of Frost then Sunny
|
64°F |
0 to 3 mph
NE
|
|
Monday Night
Oct 19
|
Clear
|
38°F |
3 mph
N
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
64°F |
2 to 8 mph
N
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
38°F |
6 mph
NE
|
|
Wednesday
Oct 21
|
Sunny
|
63°F |
5 mph
NE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
38°F |
5 mph
N
|
|
Thursday
Oct 22
|
Sunny
|
64°F |
1 to 7 mph
N
|
|
Thursday Night
Oct 22
|
Mostly Clear
|
42°F |
3 to 7 mph
N
|
|
Friday
Oct 23
|
Sunny
|
61°F |
3 to 7 mph
NE
|
|
Friday Night
Oct 23
|
Mostly Clear
|
38°F |
7 mph
NE
|
|
Saturday
Oct 24
|
Sunny
|
62°F |
6 mph
E
|
|
Saturday Night
Oct 24
|
Mostly Clear
|
38°F |
2 to 6 mph
SE
|
|
Sunday
Oct 25
|
Sunny
|
64°F |
3 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Castle Shannon.
