Upper Saint Clair, PA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Upper Saint Clair, PA in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 82. West wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half 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: Jul 8, 2026 2:57 PM EDT.
The active forecast window currently covers Jul 10 to Jul 14, 2026 for Upper Saint Clair, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 14, 2026
- Latest sync
- Jul 8, 2026 2:57 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 88 degrees F.
Saturday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 8, 2026 2:57 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
Showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 100%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64.
Mostly sunny, with a high near 85.
Mostly clear, with a low around 65.
Sunny, with a high near 88.
Mostly clear, with a low around 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Showers And Thunderstorms
|
82°F |
5 to 10 mph
W
|
|
Friday Night
Jul 10
|
Showers And Thunderstorms
|
66°F |
1 to 7 mph
W
|
|
Saturday
Jul 11
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
82°F |
1 to 8 mph
NE
|
|
Saturday Night
Jul 11
|
Chance Showers And Thunderstorms then Partly Cloudy
|
63°F |
7 mph
NE
|
|
Sunday
Jul 12
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
3 to 7 mph
E
|
|
Sunday Night
Jul 12
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
64°F |
1 to 6 mph
E
|
|
Monday
Jul 13
|
Mostly Sunny
|
85°F |
1 to 6 mph
E
|
|
Monday Night
Jul 13
|
Mostly Clear
|
65°F |
2 to 6 mph
SE
|
|
Tuesday
Jul 14
|
Sunny
|
88°F |
2 to 7 mph
SW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
68°F |
7 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Upper Saint Clair.
