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St. Clair, Pennsylvania Weather

St. Clair, Pennsylvania — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for St. Clair, Westmoreland County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Flight conditions near St. Clair. Data source: locating…

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🚜 Agricultural Weather

Soil conditions, frost risk and crop weather for St. Clair.

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About St. Clair, Pennsylvania

St. Clair rests in a hollow, where the land folds inward like a cupped hand. It lies 19.9 miles south-west of Hazleton, PA (from Hazleton, PA: bearing 215°T), and is situated 2.4 miles north of Pottsville. The Allegheny Front looms in the distance, a faint blue presence against the often-grey Pennsylvania sky, its slopes softened by a persistent haze that lends a dreamlike quality to the horizon. Here, the terrain is a study in gentle descents and rises, the roads following the natural contours of the earth as if guided by an ancient, unhurried hand. The air, especially after a spring rain, carries the clean, damp scent of upturned soil and the deep, verdant perfume of deciduous forests that cling to the hillsides, their leaves a thousand shades of green in the diffused light. Small streams, their water cool and clear, murmur through the valleys, tracing silver threads across the landscape. The history of St. Clair is deeply intertwined with the extraction of the earth's bounty, a narrative written in coal dust and the sweat of generations. This was a place built on the resilience and grit of miners, who carved their lives from the seams beneath the rolling hills, their efforts fueling the industrial heart of a nation. The legacy of that era lingers, not in grand monuments, but in the quiet determination of the people and the enduring character of the landscape, marked by the thoughtful placement of homes and the sturdy, unpretentious architecture that speaks of practical needs. The local economy, while diversified from its singular focus, still carries the echo of those foundational industries, with a workforce that understands the value of hard labor and a community that takes pride in its self-sufficiency. St. Clair offers a particular kind of peace, a sense of belonging rooted in shared experience and the enduring presence of the surrounding natural world.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for St. Clair and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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LocationSt. Clair, Westmoreland County, Pennsylvania
Coordinates40.720645°N, 76.191054°W
TimezoneEastern Time (America/New_York)
ZIP Code(s)17970
Area Code215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This St. Clair, Pennsylvania Weather Page

This page provides live weather conditions and forecasts for St. Clair, Pennsylvania, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.

Location data for St. Clair includes coordinates 40.720645°N, 76.191054°W, situated in Westmoreland County. ZIP code 17970. Telephone area code: 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878. Timezone: Eastern Time (America/New_York).

Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.