Saint Clair, Pennsylvania Weather
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Weather Forecast for Saint Clair, Pennsylvania : Westmoreland County
Issued: 7:03 pm EST Dec 27, 2024 Latitude: 40.2686808 Longitude: -79.548373 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday New Year's Day Thursday Friday
90% chance of rain on Tonight 20% chance of rain on Saturday 100% chance of thunderstorms on Sunday 40% chance of on Monday 80% chance of rain on Tuesday 70% chance of rain & snow on New Year's Day 30% chance of snow on Thursday Mostly Cloudy on Friday
Low: 44°F High: 60°F High: 62°F High: 48°F High: 52°F High: 40°F High: 31°F High: 28°F
Low: 46°F Low: 41°F Low: 37°F Low: 36°F Low: 27°F Low: 21°F  
Rain Rain Thunderstorms Partly Sunny Rain Rain & Snow Snow Mostly Cloudy
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Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
48°
Mostly Cloudy
as of 8:53 PM EST
Rel. Humidity: 66%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
5 MPH
130° Southeast
Cloud Level(s): Broken at 8500ft
Current Conditions at
STEWART FIELD - (KIDI)
45°
Feels like 39°F
Cloudy
as of 8:55 PM EST
Rel. Humidity: 70%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
9 MPH
Gust: 17 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 8500ft
Current Conditions at
JOHNSTOWN - (KJST)
37°
Feels like 29°F
Cloudy
as of 8:54 PM EST
Rel. Humidity: 86%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 16 MPH
180° South
Cloud Level(s): Solid Overcast at 9000ft
90% chance of rain Tonight Tonight... Rain, mainly after 11pm. Low around 44. Southeast wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
20% chance of rain Saturday Saturday... A slight chance of rain before noon. Mostly cloudy, with a high near 60. South wind 6 to 8 mph. Chance of precipitation is 20%.
70% chance of rain Saturday Night Saturday Night... Showers likely, mainly after 11pm. Mostly cloudy, with a low around 46. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of thunderstorms Sunday Sunday... Showers, with thunderstorms also possible after 1pm. High near 62. South wind 10 to 17 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
90% chance of rain Sunday Night Sunday Night... Showers. Low around 41. West wind 10 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
40% chance of Monday Monday... A chance of showers before 1pm. Partly sunny, with a high near 48. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 37.
80% chance of rain Tuesday Tuesday... Showers, mainly after 1pm. High near 52. Chance of precipitation is 80%.
90% chance of rain Tuesday Night Tuesday Night... Showers. Low around 36. Chance of precipitation is 90%.
70% chance of rain & snow New Year's Day New Year's Day... Rain and snow showers likely, becoming all snow after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.
40% chance of snow Wednesday Night Wednesday Night... A chance of snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
30% chance of snow Thursday Thursday... A chance of snow showers. Mostly cloudy, with a high near 31. Breezy. Chance of precipitation is 30%.
30% chance of snow Thursday Night Thursday Night... A chance of snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 28.
Current Radar Image


Sun Almanac for Saint Clair, Pennsylvania
Sunrise: 07:40 AM
Sunset: 4:59 PM
Civil Sunrise:07:09 AM
Civil Sunset: 5:30 PM
Nautical Sunrise: 06:35 AM
Nautical Sunset: 6:04 PM
Astro Sunrise: 06:02 AM
Astro Sunset: 6:37 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.