| NWS Forecast for: Mercer County Issued by: National Weather Service Philadelphia, PA Last Update: 400 AM EDT Sun Oct 19 2025 | |
| Today: Mostly sunny. Highs in the upper 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph, increasing to south 15 to 20 mph with gusts up to 30 mph this afternoon. Tonight: A chance of showers in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the lower 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent. Monday: Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers. Cooler with highs in the lower 60s. West winds 15 to 20 mph with gusts up to 30 mph. Monday Night: Mostly clear. Cooler with lows in the lower 40s. West winds 10 to 15 mph with gusts up to 30 mph, diminishing to around 5 mph after midnight. Tuesday: Sunny. Highs in the upper 60s. Southwest winds 5 to 10 mph. Tuesday Night: Showers likely. Lows in the upper 40s. Chance of rain 60 percent. Wednesday: Mostly sunny. A chance of showers in the morning. Highs in the lower 60s. Chance of rain 50 percent. Wednesday Night: Mostly clear. Lows in the lower 40s. Thursday: Sunny. Highs in the lower 60s. Thursday Night: Mostly clear. Lows in the upper 30s. Friday: Sunny. Highs around 60. Friday Night: Partly cloudy. Lows in the upper 30s. Saturday: Mostly sunny. Highs around 60. | |
| Zone Forecast: Mercer County | |
Visit your local NWS office at: https://www.weather.gov/phi/ |