Nearby Harbors
39.6567’ N, 75.5617’ W

New Castle, DE

53°
H -°
L 45°
NNE
9mph
Low tide
2:49 am

New Castle, DE Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Tue
Oct 20 		Clear -º / 45º 1% NNE 10 mph 60%
Wed
Oct 21 		Mostly Sunny
View Hourly 		66º / 43º 2% N 14 mph 48%
12am Clear 53º 1% NNE 9 mph 57%
1am Clear 52º 1% NNE 10 mph 58%
2am Clear 50º 0% NNE 11 mph 59%
3am Clear 49º 1% NNE 10 mph 61%
4am Clear 48º 1% NNE 10 mph 62%
5am Clear 47º 1% N 10 mph 64%
6am Clear 46º 1% N 10 mph 65%
7am Clear 46º 2% N 10 mph 66%
8am Sunny 47º 1% N 10 mph 67%
9am Sunny 51º 1% N 12 mph 61%
10am Mostly Sunny 54º 0% NNE 14 mph 55%
11am Sunny 57º 0% NNE 14 mph 50%
12pm Partly Cloudy 60º 0% NNE 13 mph 44%
1pm Sunny 62º 0% NNE 12 mph 41%
2pm Mostly Sunny 64º 0% N 12 mph 38%
3pm Mostly Sunny 64º 0% N 12 mph 38%
4pm Partly Cloudy 65º 0% N 11 mph 37%
5pm Partly Cloudy 64º 0% N 11 mph 37%
6pm Partly Cloudy 62º 0% N 9 mph 42%
7pm Partly Cloudy 57º 0% N 8 mph 51%
8pm Partly Cloudy 55º 1% N 7 mph 57%
9pm Partly Cloudy 53º 1% N 6 mph 62%
10pm Partly Cloudy 52º 1% N 7 mph 64%
11pm Partly Cloudy 51º 1% N 7 mph 67%
Thu
Oct 22 		Sunny
View Hourly 		69º / 44º 3% NNW 12 mph 46%
12am Mostly Clear 50º 1% N 8 mph 68%
1am Partly Cloudy 49º 1% N 9 mph 68%
2am Partly Cloudy 48º 1% N 9 mph 70%
3am Partly Cloudy 47º 1% NNW 8 mph 70%
4am Mostly Clear 46º 1% NNW 8 mph 72%
5am Mostly Clear 45º 1% NNW 8 mph 72%
6am Clear 44º 1% NNW 8 mph 73%
7am Clear 44º 3% NNW 7 mph 73%
8am Sunny 45º 3% NNW 9 mph 72%
9am Sunny 49º 1% NNW 10 mph 64%
10am Sunny 54º 0% NNW 11 mph 53%
11am Sunny 58º 0% N 12 mph 43%
12pm Sunny 62º 0% NNW 11 mph 36%
1pm Sunny 65º 0% NNW 11 mph 32%
2pm Sunny 67º 0% NNW 11 mph 30%
3pm Sunny 68º 0% NNW 11 mph 32%
4pm Sunny 68º 0% NNW 11 mph 34%
5pm Sunny 67º 0% NNW 11 mph 37%
6pm Sunny 64º 0% NNW 9 mph 42%
7pm Clear 60º 1% NNW 9 mph 50%
8pm Clear 58º 1% NNW 9 mph 57%
9pm Clear 57º 1% NNW 9 mph 61%
10pm Clear 56º 2% NNW 9 mph 66%
11pm Clear 55º 3% N 9 mph 70%
Fri
Oct 23 		Sunny 61º / 35º 3% NNE 11 mph 50%
Sat
Oct 24 		Sunny 64º / 36º 4% NE 6 mph 54%
Sun
Oct 25 		Sunny 67º / 38º 7% NNW 5 mph 57%
Mon
Oct 26 		Partly Cloudy 73º / 46º 19% NW 7 mph 55%
Tue
Oct 27 		Partly Cloudy 71º / 46º 5% N 9 mph 54%

Weather Radar for New Castle, DE See Radar

See Radar Map

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for New Castle, DE

Tonight
Low : 49ºF
N wind around 10 kt. Clear. Waves 1 ft or less.
Wednesday
High : 65ºF
N wind around 10 kt, with gusts as high as 20 kt. Sunny. Waves around 1 ft.
Wednesday Night
Low : 47ºF
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Thursday
High : 66ºF
NNW wind 5 to 10 kt. Sunny. Waves 1 ft or less.
Thursday Night
Low : 48ºF
N wind around 10 kt. Clear. Waves 1 ft or less.
Friday
High : 58ºF
NNE wind 5 to 10 kt. Sunny. Waves 1 ft or less.
Friday Night
Low : 42ºF
Variable winds 5 kt or less. Clear. Waves 1 ft or less.
Saturday
High : 61ºF
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Saturday Night
Low : 45ºF
Variable winds 5 kt or less. Clear. Waves 1 ft or less.

NOAA Buoy Data Near New Castle, DE See Map

Loading Map...
Loading Buoy Data...

    Wind Speed Forecast for New Castle, DE

    WednesdayThursdayFriday
    Wind Speed (MPH) 910101311788911119
    4am8am12pm4pm8pm12am4am8am12pm4pm8pm12am
    MPH 910101311788911119
    DIR NNENNENNNENNNNNWNNWNNWNNWNNW

    Current Weather Conditions In New Castle, DE

    As Of: 6 minutes ago

    • 53ºF
    • 50ºF
    • 9mph
    • 0º (NNE)
    • 19mph
    • Clear
    • 10mi
    • 30.23"
    • 57%
    • 0ºF

    The weather right now in New Castle, DE is Clear. The current temperature is 53°F, and the expected high and low for today, Wednesday, October 21, 2026, are -° high temperature and 45°F low temperature. The wind is currently blowing at 9 miles per hour, and coming from the North Northeast. The wind is gusting to 19 mph. With the wind and the atmosphere the temperature feels like 50° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 57 percent, and air pressure at 30.23 in. Visibility is 10 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Coastal Flood Advisory - 3:18pm Tue Oct 20 2026

    ...COASTAL FLOOD ADVISORY IN EFFECT FROM 6 PM TO 10 PM EDT WEDNESDAY...

    WHAT: Up to one foot of inundation above ground level
    expected in low-lying areas near shorelines and tidal
    waterways.

    WHERE: In Delaware, New Castle. In New Jersey, Salem.

    WHEN: From 6 PM to 10 PM EDT Wednesday.

    IMPACTS: At this level, flooding begins on the most
    vulnerable roads along tidal waterways. Some partial or full
    road closures are possible.

    ADDITIONAL DETAILS: Additional elevated high tide cycles beyond
    Wednesday evening are expected.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    A Coastal Flood Advisory means that minor tidal flooding is
    expected. Minor tidal flooding often results in some road
    closures. Usually, the most vulnerable roadways will flood.

    Do not leave your vehicle at a location that is prone to tidal
    flooding. Do not drive your vehicle through flood waters. The
    water may be deeper than you think it is. You will be putting
    yourself in danger and your vehicle may be damaged, leading to
    costly repairs.

    Visit the National Water Prediction Service at
    https://water.noaa.gov/wfo/phi for additional water level and
    flood impact information for your local tide gauge.

    &&

    Time of high total tides are approximate to the nearest hour.

    Delaware River at Reedy Point
    MLLW Categories - Minor 7.2 ft, Moderate 8.2 ft, Major 9.2 ft
    MHHW Categories - Minor 1.4 ft, Moderate 2.4 ft, Major 3.4 ft

    Total Total Departure
    Day/Time Tide Tide from Norm Flood
    ft MLLW ft MHHW ft Impact
    -------- --------- --------- --------- --------
    20/07 PM 7.2 1.4 1.6 Minor
    21/08 AM 7.1 1.3 2.0 None
    21/08 PM 7.7 1.9 2.0 Minor
    22/09 AM 7.5 1.7 2.1 Minor
    22/09 PM 7.5 1.7 1.7 Minor
    23/10 AM 7.2 1.4 1.5 Minor

    &&

    Small Craft Advisory - 2:52pm Tue Oct 20 2026

    ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT WEDNESDAY...

    WHAT: North winds 15 to 20 kt with gusts up to 30 kt and
    choppy waters.

    WHERE: Delaware Bay waters north of East Point NJ to
    Slaughter Beach DE and Delaware Bay waters south of East Point
    NJ to Slaughter Beach DE.

    WHEN: Until noon EDT Wednesday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&

    Your Privacy Choices