Upper Saint Clair, PA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Upper Saint Clair, PA in one place.
Mostly sunny, with a high near 75. Southwest wind 7 to 15 mph, with gusts as high as 26 mph. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Upper Saint Clair, 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: Apr 9, 2026 3:46 PM EDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Upper Saint Clair, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:46 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Upper Saint Clair
Tuesday looks like the warmest upcoming period in Upper Saint Clair at 84 degrees F.
Friday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Monday at about 12 to 18 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:46 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
Rain showers likely before 2am. Mostly cloudy, with a low around 42. Northwest wind 6 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 63. North wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 42.
Partly sunny, with a high near 79.
Mostly cloudy, with a low around 62.
A chance of rain showers after 8am. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Mostly Sunny
|
75°F |
7 to 15 mph
SW
|
|
Friday Night
Apr 10
|
Rain Showers Likely
|
42°F |
6 to 13 mph
NW
|
|
Saturday
Apr 11
|
Sunny
|
63°F |
6 mph
N
|
|
Saturday Night
Apr 11
|
Mostly Clear
|
42°F |
5 mph
NE
|
|
Sunday
Apr 12
|
Partly Sunny
|
79°F |
3 to 12 mph
S
|
|
Sunday Night
Apr 12
|
Mostly Cloudy
|
62°F |
7 to 10 mph
SW
|
|
Monday
Apr 13
|
Chance Rain Showers
|
77°F |
12 to 18 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
61°F |
8 to 15 mph
SW
|
|
Tuesday
Apr 14
|
Chance Rain Showers
|
84°F |
8 to 15 mph
SW
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms
|
64°F |
7 to 13 mph
SW
|
|
Wednesday
Apr 15
|
Chance Rain Showers
|
84°F |
8 to 15 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
61°F |
7 to 13 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Upper Saint Clair.
