| NWS Forecast for: New Castle County Issued by: National Weather Service Philadelphia, PA Last Update: 222 PM EDT Sat Jun 27 2026 |  |
| This Afternoon: Showers likely with a chance of thunderstorms. Near steady temperature in the upper 70s. Southeast winds around 5 mph. Chance of rain 70 percent. Tonight: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the upper 60s. East winds around 5 mph. Chance of rain 70 percent. Sunday: Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 80s. East winds around 5 mph. Chance of rain 50 percent. Sunday Night: Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the upper 60s. East winds around 5 mph. Chance of rain 50 percent. Monday: Mostly sunny. Hot with highs in the mid 80s. East winds 5 to 10 mph. Monday Night: Mostly clear. Lows in the mid 60s. Tuesday: Sunny, hot with highs in the upper 80s. Tuesday Night: Mostly clear. Lows in the lower 70s. Wednesday: Sunny, hot with highs in the mid 90s. Wednesday Night: Mostly clear. Lows in the upper 70s. Thursday: Sunny, hot with highs around 100. Heat index values up to 110. Thursday Night: Mostly clear. Lows in the upper 70s. Friday: Sunny, hot with highs around 100. Heat index values up to 110. | |
| Zone Forecast: New Castle County | |
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