| NWS Forecast for: Mercer County Issued by: National Weather Service Philadelphia, PA Last Update: 400 PM EDT Wed Jun 17 2026 | |
| Tonight: Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly cloudy after midnight. Lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 20 percent. Thursday: Mostly cloudy with a slight chance of showers in the morning, then mostly sunny with a chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Hot with highs in the lower 90s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 40 percent. Thursday Night: Partly cloudy. Lows in the mid 60s. West winds 15 to 20 mph with gusts up to 35 mph, diminishing to 5 to 10 mph after midnight. Juneteenth: Mostly sunny. Highs in the lower 80s. West winds 5 to 10 mph. Friday Night: Clear. Lows in the lower 60s. West winds 5 to 10 mph. Saturday: Sunny. Highs in the lower 80s. Saturday Night: Mostly clear. Lows around 60. Sunday: Sunny. Highs in the mid 80s. Sunday Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 60s. Chance of rain 50 percent. Monday: Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 80 percent. Monday Night: Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 80 percent. Tuesday: Mostly sunny. Highs in the lower 80s. Tuesday Night: Mostly clear. Lows around 60. Wednesday: Sunny. Highs in the mid 80s. | |
| Zone Forecast: Mercer County | |
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