Marine Weather Net

New Castle, DE Weather Forecast




New Castle, Delaware

 Lat: 39.66N, Lon: 75.57W

Current Conditions Updated: 351 AM EDT WED SEP 16 2026

Clear


Temp: 59°F
  • Humidity:
  • 93%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.34 in.
  • Dewpoint:
  • 57°F
  • Heat index:
  • 59°F

  • Sunrise:
  • 6:42 AM EDT
  • Sunset:
  • 7:09 PM EDT
  • Moonrise:
  • 12:39 PM EDT
  • Moonset:
  • 9:47 PM EDT

TODAY

SUNNY

Hi: 81°F
Lo: 65°F

THURSDAY

PARTLY SUNNY
Hi: 85°F
Lo: 67°F

FRIDAY

MOSTLY SUNNY
Hi: 81°F
Lo: 60°F

SATURDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 61°F
Weather Forecast In Detail:
Forecast Issued: 400 AM EDT Wed Sep 16 2026

Today...Sunny. Highs in the lower 80s. South winds 5 to 10 mph.
Tonight...Partly cloudy. Lows in the mid 60s. South winds 5 to 10 mph.
Thursday...Partly sunny. Hot with highs in the mid 80s. South winds 5 to 10 mph.
Thursday Night...Mostly cloudy. Humid with lows in the upper 60s. Southwest winds around 5 mph.
Friday...Mostly sunny. Humid with highs in the lower 80s. North winds 5 to 10 mph.
Friday Night...Mostly clear in the evening, then becoming partly cloudy. Lows around 60.
Saturday...Mostly sunny. Highs in the upper 70s.
Saturday Night...Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 60s. Chance of rain 30 percent.
Sunday...Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 70s. Chance of rain 60 percent.
Sunday Night...Mostly cloudy. Showers likely, mainly in the evening. Lows in the lower 60s. Chance of rain 60 percent.
Monday...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 70s.
Monday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 60s.
Tuesday...Mostly cloudy with a 40 percent chance of showers. Highs in the mid 70s.
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