World Resorts

USA

New Castle Weather

New Castle 14 Days Forecast

18.03
wed

Day

36°F

S 3 mph

Precip.
0%

Night

32°F

NW 6 mph

Precip.
0%

19.03
thu

Day

43°F

N 8 mph

Precip.
0%

Night

39°F

NE 4 mph

Precip.
0%

20.03
fri

Day

55°F

N 9 mph

Precip.
0%

Night

50°F

N 12 mph

Precip.
0%

21.03
sat

Day

59°F

S 14 mph

Precip.
0%

Night

48°F

W 2 mph

Precip.
0%

22.03
sun

Day

59°F

NE 8 mph

Precip.
0%

Night

55°F

N 8 mph

Precip.
0%

23.03
mon

Day

43°F

S 14 mph

Precip.
100%

Night

32°F

S 13 mph

Precip.
0%

24.03
tue

Day

39°F

S 9 mph

Precip.
0%

Night

34°F

N 6 mph

Precip.
0%

25.03
wed

Day

46°F

NE 9 mph

Precip.
0%

Night

41°F

N 3 mph

Precip.
0%

26.03
thu

Day

57°F

N 13 mph

Precip.
0%

Night

57°F

N 17 mph

Precip.
0%

27.03
fri

Day

63°F

NE 17 mph

Precip.
0%

Night

28°F

S 14 mph

Precip.
100%

28.03
sat

Day

19°F

S 15 mph

Precip.
100%

Night

12°F

SE 9 mph

Precip.
0%

29.03
sun

Day

34°F

SE 16 mph

Precip.
100%

Night

14°F

SE 8 mph

Precip.
0%

30.03
mon

Day

21°F

SE 12 mph

Precip.
74%

Night

12°F

W 5 mph

Precip.
0%

31.03
tue

Day

27°F

SE 7 mph

Precip.
24%

Night

23°F

E 4 mph

Precip.
0%

sea water
temperature

New Castle

monthly
weather

New Castle

current
weather

New Castle

7 days
forecast

New Castle

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in March of 2026 was 39.6°F. The highest and lowest sea temperatures during the month were 44.1°F and 35.8°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.