Measurements:
°C
°F
New Castle
36°F
E 9 mph
Feels like: 30°F
Precip: 0%
World Resorts USA New Castle Weather

7 Day Weather Forecast

02.21
sat
DAY
44°F
SE 12 mph
precip
0%
NIGHT
34°F
S 3 mph
precip
0%
02.22
sun
DAY
36°F
W 12 mph
precip
0%
NIGHT
30°F
S 20 mph
precip
100%
02.23
mon
DAY
28°F
SE 16 mph
precip
100%
NIGHT
26°F
SE 12 mph
precip
0%
02.24
tue
DAY
28°F
SE 11 mph
precip
74%
NIGHT
24°F
N 3 mph
precip
0%
02.25
wed
DAY
32°F
N 9 mph
precip
71%
NIGHT
32°F
N 2 mph
precip
50%
02.26
thu
DAY
36°F
NE 8 mph
precip
100%
NIGHT
40°F
N 5 mph
precip
100%
02.27
fri
DAY
38°F
SW 14 mph
precip
100%
NIGHT
28°F
SE 16 mph
precip
0%

New Castle Sea Water Temperature in February, °F

Select Year: 2026 2025 2024

The average sea surface temperature in February 2026 for New Castle was 0.0°F. The maximum and minimum values were -0.3°F and 0.9°F respectively.

New Castle on the Weather Map

Best Time to Visit New Castle
The most sunny months:
November 17 days
October 16 days
September 15 days
The most warm months:
July 89.5 °F
August 86.0 °F
June 83.1 °F
Warmest sea temperature:
July 84.2 °F
August 83.3 °F
September 77.2 °F
The most cold months:
January 37.3 °F
February 41.5 °F
December 42.3 °F
The most rainy months:
July 3 days
August 3 days
April 3 days
The most windy months:
March 9 mph
April 9 mph
January 8 mph