Saint Clair, PA Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Clair, PA in one place.
A chance of rain showers before 2pm. Mostly sunny, with a high near 76. West wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for 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 15, 2026 9:57 PM EDT.
The active forecast window currently covers Apr 17 to Apr 22, 2026 for Saint Clair, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 22, 2026
- Latest sync
- Apr 15, 2026 9:57 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Clair
Saturday looks like the warmest upcoming period in Saint Clair at 81 degrees F.
Monday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Sunday at about 12 to 18 mph W.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 9:57 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
Partly cloudy, with a low around 57. East wind around 6 mph.
A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
A chance of rain showers. Mostly cloudy, with a high near 55. Chance of precipitation is 50%.
A chance of rain showers before 8pm, then a slight chance of rain and snow showers. Partly cloudy, with a low around 34. Chance of precipitation is 40%.
A slight chance of snow showers before 2pm. Mostly sunny, with a high near 51.
Mostly clear, with a low around 33.
Mostly sunny, with a high near 68.
A slight chance of rain showers after 8pm. Partly cloudy, with a low around 50.
A slight chance of rain showers. Partly sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Chance Rain Showers
|
76°F |
7 mph
W
|
|
Friday Night
Apr 17
|
Partly Cloudy
|
57°F |
6 mph
E
|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
81°F |
6 to 15 mph
S
|
|
Saturday Night
Apr 18
|
Showers And Thunderstorms Likely
|
44°F |
10 to 14 mph
W
|
|
Sunday
Apr 19
|
Chance Rain Showers
|
55°F |
12 to 18 mph
W
|
|
Sunday Night
Apr 19
|
Slight Chance Rain And Snow Showers
|
34°F |
9 to 17 mph
NW
|
|
Monday
Apr 20
|
Slight Chance Snow Showers
|
51°F |
9 to 14 mph
NW
|
|
Monday Night
Apr 20
|
Mostly Clear
|
33°F |
5 to 10 mph
N
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
68°F |
6 to 14 mph
S
|
|
Tuesday Night
Apr 21
|
Slight Chance Rain Showers
|
50°F |
12 mph
SW
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers
|
68°F |
9 to 14 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Clair.