Nearby Harbors
39.6567’ N, 75.5617’ W

New Castle, DE

77°
H -°
L 57°
NW
8mph
High tide
9:19 pm

New Castle, DE Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Mon
Sep 7 		Partly Cloudy
Close Hourly 		-º / 57º 9% NW 8 mph 74%
7pm Mostly Sunny 77º 1% NW 8 mph 47%
8pm Partly Cloudy 73º 1% NW 7 mph 54%
9pm Partly Cloudy 70º 1% NW 6 mph 59%
10pm Partly Cloudy 67º 1% NW 3 mph 68%
11pm Mostly Clear 65º 1% NW 2 mph 74%
Tue
Sep 8 		Partly Cloudy
View Hourly 		85º / 65º 6% WNW 6 mph 55%
12am Clear 63º 1% NW 3 mph 80%
1am Clear 62º 2% WNW 2 mph 86%
2am Clear 61º 4% WNW 2 mph 87%
3am Clear 60º 5% WNW 3 mph 89%
4am Clear 59º 5% WNW 3 mph 89%
5am Clear 59º 10% WNW 3 mph 89%
6am Clear 58º 6% NW 3 mph 91%
7am Sunny 58º 6% NW 3 mph 92%
8am Mostly Sunny 63º 4% NW 3 mph 82%
9am Mostly Sunny 68º 1% NW 4 mph 69%
10am Partly Cloudy 74º 0% NW 4 mph 58%
11am Mostly Sunny 77º 0% WNW 4 mph 52%
12pm Partly Cloudy 79º 0% WNW 4 mph 47%
1pm Mostly Sunny 81º 0% WNW 4 mph 43%
2pm Partly Cloudy 83º 0% WNW 5 mph 41%
3pm Partly Cloudy 83º 0% W 5 mph 41%
4pm Mostly Sunny 83º 0% W 6 mph 42%
5pm Partly Cloudy 83º 0% WSW 6 mph 43%
6pm Partly Cloudy 81º 0% SW 6 mph 48%
7pm Partly Cloudy 78º 0% SW 6 mph 53%
8pm Partly Cloudy 74º 1% SW 5 mph 62%
9pm Partly Cloudy 72º 2% SSW 4 mph 67%
10pm Mostly Cloudy 71º 3% SSW 4 mph 74%
11pm Partly Cloudy 70º 4% SSW 4 mph 77%
Wed
Sep 9 		Partly Cloudy
View Hourly 		88º / 72º 7% SSW 13 mph 60%
12am Partly Cloudy 69º 4% SSW 4 mph 81%
1am Partly Cloudy 67º 4% SW 4 mph 84%
2am Partly Cloudy 67º 4% SSW 4 mph 84%
3am Partly Cloudy 67º 5% SSW 4 mph 87%
4am Partly Cloudy 66º 6% SSW 4 mph 89%
5am Partly Cloudy 66º 7% SW 4 mph 90%
6am Partly Cloudy 66º 7% SW 4 mph 92%
7am Partly Cloudy 66º 7% SSW 5 mph 92%
8am Partly Cloudy 70º 6% SSW 6 mph 85%
9am Mostly Sunny 74º 4% SW 8 mph 75%
10am Partly Cloudy 78º 1% SSW 8 mph 66%
11am Mostly Sunny 81º 0% SSW 9 mph 59%
12pm Sunny 83º 0% SW 10 mph 53%
1pm Sunny 84º 0% SW 12 mph 50%
2pm Mostly Sunny 86º 0% SW 12 mph 47%
3pm Sunny 86º 0% SSW 13 mph 47%
4pm Sunny 86º 0% SSW 13 mph 47%
5pm Sunny 86º 0% SSW 13 mph 48%
6pm Sunny 84º 0% SSW 13 mph 51%
Thu
Sep 10 		PM Showers 87º / 67º 55% WSW 11 mph 63%
Fri
Sep 11 		Mostly Sunny 82º / 62º 11% NNW 8 mph 60%
Sat
Sep 12 		Partly Cloudy 81º / 66º 16% ESE 9 mph 66%
Sun
Sep 13 		AM Showers 83º / 65º 48% W 8 mph 77%
Mon
Sep 14 		Partly Cloudy 82º / 60º 24% NNW 8 mph 58%

Weather Radar for New Castle, DE See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for New Castle, DE

Tonight
Low : 61ºF
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Tuesday
High : 83ºF
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Tuesday Night
Low : 67ºF
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Wednesday
High : 84ºF
SSW wind 5 to 10 kt. Sunny. Waves 1 ft or less.
Wednesday Night
Low : 73ºF
SSW wind around 10 kt. Mostly clear. Waves around 1 ft.
Thursday
High : 85ºF
WSW wind around 10 kt. A chance of showers and thunderstorms after 2pm. Waves around 1 ft.
Thursday Night
Low : 68ºF
Variable winds 5 kt or less. A chance of showers before 2am. Waves around 1 ft.
Friday
High : 81ºF
Variable winds 5 kt or less. Mostly sunny. Waves around 1 ft.
Friday Night
Low : 64ºF
Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.

NOAA Buoy Data Near New Castle, DE See Map

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    Wind Speed Forecast for New Castle, DE

    MondayTuesdayWednesday
    Wind Speed (MPH) 8233456445913
    11pm3am7am11am3pm7pm11pm3am7am11am3pm7pm
    MPH 8233456445913
    DIR NWNWWNWNWWNWWSWSSWSSWSSWSSWSSW

    Current Weather Conditions In New Castle, DE

    As Of: 20 minutes ago

    • 77ºF
    • 77ºF
    • 8mph
    • 0º (NW)
    • 8mph
    • Mostly Sunny
    • 10mi
    • 30.15"
    • 47%
    • 0ºF

    The weather right now in New Castle, DE is Mostly Sunny. The current temperature is 77°F, and the expected high and low for today, Monday, September 7, 2026, are -° high temperature and 57°F low temperature. The wind is currently blowing at 8 miles per hour, and coming from the Northwest. The wind is gusting to 8 mph. With the wind and the atmosphere the temperature feels like 77° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 47 percent, and air pressure at 30.15 in. Visibility is 10 nautical miles. There are no current weather alert(s).

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