Weather in South Mountain, PA
Updated 2026-08-11 12:15 local time · ZIP codes 17261
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
75°4% rain87°3% rain86°4% rain86°4% rain90°3% rain89°2% rain86°3% rain82°4% rain79°5% rain
77°7% rain76°9% rain75°10% 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 10%).
It feels like 78°F with winds near 9 mph.
75°F, 4% rain chance and 9 mph wind.
Visibility is around 10 mi; gusts may reach 15 mph.
Current temperature is 75°F, wind 9 mph, rain chance up to 10%.
UV index is 6. Sunscreen, shade and protective clothing are recommended.
South Mountain weather today
Sunny and 75°F in South Mountain, PA. Today's high is 90°F with a 17% rain chance. Winds are around 9 mph with gusts near 10 mph. Relative humidity is 74%, pressure is 29.96 inHg, and visibility is about 10 miles.
Tonight and tomorrow in South Mountain
Sunrise is at 06:18 AM and sunset is at 08:12 PM. Tomorrow's forecast calls for Sunny with a high near 87°F and a low near 63°F. The maximum rain chance is 45%.