World Resorts USA New Castle Weather

New Castle 7 Days Forecast

26.02
thu
Day
50°F
SE 6 mph
Precip.
0%
Night
34°F
S 2 mph
Precip.
0%
27.02
fri
Day
36°F
NE 6 mph
Precip.
0%
Night
36°F
N 5 mph
Precip.
0%
28.02
sat
Day
39°F
NE 7 mph
Precip.
0%
Night
39°F
SW 2 mph
Precip.
0%
01.03
sun
Day
39°F
S 9 mph
Precip.
0%
Night
30°F
S 9 mph
Precip.
0%
02.03
mon
Day
30°F
S 7 mph
Precip.
0%
Night
27°F
W 3 mph
Precip.
0%
03.03
tue
Day
39°F
N 10 mph
Precip.
0%
Night
36°F
NW 3 mph
Precip.
100%
04.03
wed
Day
48°F
E 7 mph
Precip.
0%
Night
43°F
W 3 mph
Precip.
100%

Sea water temperature in February, °F

Show year:
2026
2025
2024

The average sea water temperature in February of 2026 was 32.4°F. The highest and lowest sea temperatures during the month were 34.2°F and 31.5°F.

Sea water temperature in March, °F

Show year:
2025
2024
2023

The average sea water temperature in March of 2025 was 43.4°F. The highest and lowest sea temperatures during the month were 49.3°F and 37.0°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 42.3 °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
+50°F
SE 6 mph
Feels like: +48°F
Precip.: 0%
Places in USA:
Name
°F
+52°F
+70°F
+70°F
+63°F
+61°F
+73°F
+75°F
+66°F
+43°F
+63°F
+55°F
+68°F
+68°F
+73°F
+34°F
24 Hours Forecast
New Castle
Local time: 13:27
February 26, thursday
1500
54°F
S
5 mph
1800
52°F
SW
4 mph
2100
43°F
S
3 mph
February 27, friday
0000
34°F
S
2 mph
0300
27°F
SE
1 mph
0600
27°F
S
2 mph
0900
28°F
NE
1 mph
1200
36°F
NE
6 mph
Units of measurement: °C / °F