NEW CASTLE, DE 19720 Weather Forecast & Current Conditions

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WILMINGTON, DE
Current Weather

8:51 AM EDT MAR 15, 2026
Overcast
43°F
Feels Like: 38°F
Dewpoint: 27°F
Rel. Hum.: 53%
Visibility: 10 miles
Wind: E at 9 mph
Pressure: 30.42 inches
Last 72 hours

Local Area Snow Depth

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(Automated weather data from NWS/FAA)
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NEW CASTLE, DE 19720
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny. Highs in the mid 50s. East winds 10 to 15 mph with gusts up to 25 mph.
TONIGHT
Cloudy. A chance of rain in the evening, then rain with a slight chance of thunderstorms after midnight. Not as cool with lows in the upper 40s. Temperature rising into the mid 50s after midnight. Southeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent.
MONDAY
Showers. A chance of thunderstorms. Some thunderstorms may produce damaging winds in the morning. Some thunderstorms may be severe with damaging winds in the afternoon. Breezy, warmer with highs in the upper 60s. South winds 15 to 25 mph. Gusts up to 40 mph in the afternoon. Chance of rain near 100 percent.
MONDAY NIGHT
A chance of thunderstorms in the evening. Rain showers. Some thunderstorms may be severe with damaging winds. Breezy and much colder with lows in the lower 30s. Southwest winds 15 to 25 mph with gusts up to 40 mph, becoming west 15 to 20 mph with gusts up to 30 mph after midnight. Chance of rain near 100 percent.
TUESDAY
Mostly sunny. A chance of rain showers in the morning. Much cooler with highs around 40. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent.
TUESDAY NIGHT
Mostly clear. Cold with lows in the mid 20s.
WEDNESDAY
Sunny in the morning, then becoming mostly cloudy. Highs around 40.
WEDNESDAY NIGHT
Mostly cloudy. Cold with lows in the upper 20s.
THURSDAY
Partly sunny. Not as cool with highs around 50.
THURSDAY NIGHT
Mostly cloudy. Lows in the mid 30s.
FRIDAY
Partly sunny. Highs in the mid 50s.
FRIDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of rain after midnight. Lows in the upper 30s. Chance of rain 40 percent.
SATURDAY
Mostly cloudy in the morning, then becoming partly sunny. A 40 percent chance of rain. Highs in the mid 50s.

Visible Weather Satellite
NEW CASTLE, DE 19720
Infrared Weather Satellite
NEW CASTLE, DE 19720
NEXRAD Weather Radar
NEW CASTLE, DE 19720

WILMINGTON, DE 3 hourly weather forecast

weather forecast created  6:00 PM CST  3/14/2026
Sunday
15 MAR 2026
NEW CASTLE, DE 19720 weather forecast Day 1, 0 hours 1 AM 39° 36° Mostly Cloudy 2%

0% Thunder
( 0% severe)
NE   5 47% 21°
Low 37° NEW CASTLE, DE 19720 weather forecast Day 1, 3 hours 4 AM 38° 33° Mostly Cloudy E   7 51% 22°
High 56° NEW CASTLE, DE 19720 weather forecast Day 1, 6 hours 7 AM 38° 31° Mostly Cloudy 2%

0% Thunder
( 0% severe)
E   9 53% 23°

Mostly Cloudy



NEW CASTLE, DE 19720 weather forecast Day 1, 9 hours 10 AM 47° 41° Mostly Cloudy ESE   13 41% 25°
NEW CASTLE, DE 19720 weather forecast Day 1, 12 hours 1 PM 53° 48° Mostly Cloudy 5%

0% Thunder
( 0% severe)
SE   18 36% 27°
NEW CASTLE, DE 19720 weather forecast Day 1, 15 hours 4 PM 53° 48° Mostly Cloudy SE   18 46% 33°
NEW CASTLE, DE 19720 weather forecast Day 1, 18 hours 7 PM 51° 46° Mostly Cloudy 65%
RAIN
***
0% Thunder
( 9% severe)
ESE   14 61% 38°
NEW CASTLE, DE 19720 weather forecast Day 1, 21 hours 10 PM 52° 47° Mostly Cloudy ESE   14 74% 44°
Monday
16 MAR 2026
NEW CASTLE, DE 19720 weather forecast Day 2, 0 hours 1 AM 54° 50° Mostly Cloudy 84%
RAIN
***
0% Thunder
( 13% severe)
SE   15 83% 49°
Low 49° NEW CASTLE, DE 19720 weather forecast Day 2, 3 hours 4 AM 55° 51° Mostly Cloudy SSE   15 90% 52°
High 69° NEW CASTLE, DE 19720 weather forecast Day 2, 6 hours 7 AM 58° 55° Mostly Cloudy 81%
RAIN
***
0% Thunder
( 14% severe)
S   14 87% 54°

Mostly Cloudy

Rain Likely


Breezy
NEW CASTLE, DE 19720 weather forecast Day 2, 9 hours 10 AM 63° 61° Mostly Cloudy S   18 81% 57°
NEW CASTLE, DE 19720 weather forecast Day 2, 12 hours 1 PM 66° 66° Mostly Cloudy 89%
RAIN
***
0% Thunder
( 16% severe)
S   23 73% 57°
NEW CASTLE, DE 19720 weather forecast Day 2, 15 hours 4 PM 65° 65° Mostly Cloudy S   23 68% 54°
NEW CASTLE, DE 19720 weather forecast Day 2, 18 hours 7 PM 58° 54° Overcast 95%
RAIN
***
0% Thunder
( 8% severe)
SSW   20 72% 49°
NEW CASTLE, DE 19720 weather forecast Day 2, 21 hours 10 PM 47° 40° Mostly Cloudy W   18 76% 40°

WILMINGTON, DE extended weather forecast

Tuesday
17 MAR 2026
Wednesday
18 MAR 2026
Thursday
19 MAR 2026
Friday
20 MAR 2026
Saturday
21 MAR 2026
Low 35° Low 21° Low 29° Low 35° Low 42°
High 44° High 43° High 52° High 58° High 63°
NEW CASTLE, DE 19720 weather forecast Day 3 NEW CASTLE, DE 19720 weather forecast Day 4 NEW CASTLE, DE 19720 weather forecast Day 5 NEW CASTLE, DE 19720 weather forecast Day 6 NEW CASTLE, DE 19720 weather forecast Day 7
Mostly Cloudy
99% Rain/Snow
Partly Cloudy
13% Snow
Overcast
19% Rain/Snow
Partly Cloudy
16% Rain
Mostly Cloudy
19% Rain
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