Marine Weather Net

New Castle, DE Weather Forecast




New Castle, Delaware

 Lat: 39.66N, Lon: 75.57W

Current Conditions Updated: 1206 PM EST MON FEB 23 2026

Overcast
Temp: 36°F
  • Humidity:
  • 72%
  • Winds:
  • 22 MPH WNW
  • Gusts:
  • 29 MPH
  • Barometer:
  • 29.68 in.
  • Dewpoint:
  • 28°F
  • Heat index:
  • 36°F

  • Sunrise:
  • 6:45 AM EST
  • Sunset:
  • 5:44 PM EST
  • Moonrise:
  • 9:42 AM EST
  • Moonset:
  • N/A EST

TODAY

BLOWING SNOW
Hi: 39°F
Lo: 21°F
Precip: 70%

TUESDAY

MOSTLY SUNNY
Hi: 35°F
Lo: 21°F

WEDNESDAY

MOSTLY SUNNY
Hi: 49°F
Lo: 29°F
Precip: 50%

THURSDAY

PARTLY SUNNY
Hi: 45°F
Lo: 31°F
Precip: 70%
Weather Forecast In Detail:
Forecast Issued: 401 AM EST Mon Feb 23 2026

BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING
Today...Cloudy. Snow likely, mainly this morning. Blowing snow this morning, then areas of blowing snow this afternoon. Snow accumulation of 1 to 3 inches. Breezy with highs in the upper 30s. Northwest winds 15 to 25 mph with gusts up to 40 mph. Chance of snow 70 percent.
Tonight...Mostly cloudy in the evening, then becoming partly cloudy. Areas of blowing snow in the evening. Cold with lows in the lower 20s. Northwest winds 15 to 20 mph.
Tuesday...Mostly sunny. Highs in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph.
Tuesday Night...Partly cloudy in the evening, then mostly cloudy with snow likely after midnight. Little or no snow accumulation. Cold with lows in the lower 20s. Temperature rising into the lower 30s after midnight. South winds 5 to 10 mph. Chance of snow 60 percent.
Wednesday...Mostly cloudy with a chance of rain and snow in the morning, then mostly sunny in the afternoon. Little or no snow accumulation. Not as cool with highs in the upper 40s. Southwest winds 10 to 15 mph. Chance of precipitation 50 percent.
Wednesday Night...Mostly clear in the evening, then becoming partly cloudy. Cold with lows in the upper 20s.
Thursday...Partly sunny with a chance of rain and snow in the morning, then mostly cloudy with rain likely in the afternoon. Little or no snow accumulation. Highs in the mid 40s. Chance of precipitation 70 percent.
Thursday Night...Rain likely, mainly in the evening. Lows in the lower 30s. Chance of rain 70 percent.
Friday...Mostly sunny. Highs in the mid 40s.
Friday Night...Mostly clear. Cold with lows around 30.
Saturday...Sunny. Highs in the lower 50s.
Saturday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s.
Sunday...Partly sunny. Highs around 50.
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