| NWS Forecast for: Mercer County Issued by: National Weather Service Philadelphia, PA Last Update: 943 AM EDT Sat Sep 12 2026 | |
Rest Of Today: Mostly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph. Tonight: Mostly cloudy. Showers with a chance of thunderstorms after midnight. Patchy fog after midnight. Locally heavy rainfall possible after midnight. Warmer with lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 90 percent. Sunday: Mostly cloudy with showers in the morning, then mostly sunny in the afternoon. Patchy fog. Locally heavy rainfall possible in the morning. Humid with highs in the lower 80s. South winds around 5 mph, becoming west around 5 mph in the afternoon. Chance of rain 90 percent. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 60s. West winds around 5 mph. Monday: Mostly sunny. Highs in the mid 70s. North winds 5 to 10 mph. Monday Night: Mostly clear. Cooler with lows in the lower 50s. Tuesday: Sunny. Highs in the mid 70s. Tuesday Night: Partly cloudy. Lows in the mid 50s. Wednesday: Sunny. Highs in the lower 80s. Wednesday Night: Mostly clear. Lows around 60. Thursday: Mostly sunny. Highs in the mid 80s. Thursday Night: Partly cloudy. Lows in the lower 60s. Friday: Mostly sunny. Highs in the lower 80s. | |
| Zone Forecast: Mercer County | |
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