| NWS Forecast for: Mercer County Issued by: National Weather Service Philadelphia, PA Last Update: 400 AM EDT Thu Sep 25 2025 |  |
| Today: Patchy fog this morning. Showers with a slight chance of thunderstorms this morning, then showers likely with a chance of thunderstorms this afternoon. Highs in the upper 70s. South winds 5 to 10 mph. Chance of rain 90 percent. Tonight: Showers with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Humid with lows in the mid 60s. Southwest winds around 5 mph. Chance of rain 80 percent. Friday: Patchy fog in the morning. Partly sunny. Humid with highs around 80. West winds around 5 mph. Friday Night: Mostly cloudy. Lows in the upper 50s. Northwest winds around 5 mph. Saturday: Mostly cloudy. Highs in the upper 70s. Northeast winds around 5 mph. Saturday Night: Mostly cloudy with a 50 percent chance of showers. Lows in the lower 60s. Sunday: Mostly cloudy with a 50 percent chance of showers. Highs in the mid 70s. Sunday Night: Mostly cloudy with a 40 percent chance of showers. Lows in the lower 60s. Monday: Mostly cloudy. Highs in the upper 70s. Monday Night: Mostly cloudy. Lows around 60. Tuesday: Partly sunny. Highs in the mid 70s. Tuesday Night: Partly cloudy. Lows in the lower 50s. Wednesday: Sunny. Highs in the upper 60s. | |
| Zone Forecast: Mercer County | |
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