World Resorts USA New Castle Weather

New Castle 7 Days Forecast

08.04
wed
Day
46°F
W 6 mph
Precip.
0%
Night
37°F
NW 6 mph
Precip.
0%
09.04
thu
Day
41°F
NW 6 mph
Precip.
0%
Night
39°F
W 4 mph
Precip.
0%
10.04
fri
Day
48°F
NE 2 mph
Precip.
0%
Night
52°F
NE 6 mph
Precip.
0%
11.04
sat
Day
59°F
S 13 mph
Precip.
0%
Night
50°F
SW 5 mph
Precip.
0%
12.04
sun
Day
57°F
N 8 mph
Precip.
0%
Night
50°F
N 9 mph
Precip.
0%
13.04
mon
Day
70°F
NE 13 mph
Precip.
0%
Night
66°F
NE 11 mph
Precip.
0%
14.04
tue
Day
77°F
E 16 mph
Precip.
0%
Night
66°F
SE 6 mph
Precip.
0%

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 53.3°F. The highest and lowest sea temperatures during the month were 59.4°F and 50.0°F.

Air temperature in New Castle, °F

Precipitation total in New Castle, in.

* Charts above show average data for the last 3 years.

Best time for vacation in New Castle

Sunniest months:
November 17 days
October 16 days
September 15 days
Warmest months:
July 85.5 °F
August 82.4 °F
June 79.8 °F
Warmest sea temp:
July 80.8 °F
August 80.0 °F
September 74.5 °F
Coldest months:
January 38.6 °F
February 41.6 °F
December 43.1 °F
Rainiest months:
July 3 days
August 3 days
April 3 days
Windiest months:
March 9.2 mph
April 8.8 mph
January 8.5 mph

New Castle on a weather map

New Castle
+36°F
SW 7 mph
Feels like: +28°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+73°F
+73°F
+63°F
+57°F
+75°F
+75°F
+68°F
+36°F
+59°F
+52°F
+66°F
+68°F
+64°F
+41°F
24 Hours Forecast
New Castle
Local time: 10:19
April 08, wednesday
1200
46°F
W
6 mph
1500
54°F
NW
6 mph
1800
52°F
N
9 mph
2100
43°F
NW
9 mph
April 09, thursday
0000
37°F
NW
6 mph
0300
34°F
W
4 mph
0600
34°F
W
4 mph
0900
37°F
W
5 mph
Units of measurement: °C / °F