Weather in Saint Clair, PA
Updated 2026-08-11 11:15 local time · ZIP codes 17970
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
84°8% rain82°7% rain83°6% rain84°8% rain88°4% rain87°3% rain
83°5% rain83°4% rain80°5% rain77°7% rain
75°7% rain74°8% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 8%).
It feels like 92°F with winds near 6 mph.
77°F, 7% rain chance and 2 mph wind.
Visibility is around 6 mi; gusts may reach 11 mph.
Current temperature is 84°F, wind 6 mph, rain chance up to 8%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Saint Clair weather today
Sunny and 84°F in Saint Clair, PA. Today's high is 88°F with a 36% rain chance. Winds are around 6 mph with gusts near 7 mph. Relative humidity is 75%, pressure is 29.92 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Saint Clair
Sunrise is at 06:11 AM and sunset is at 08:08 PM. Tomorrow's forecast calls for Sunny with a high near 83°F and a low near 62°F. The maximum rain chance is 65%.