18.03
wed
wed
Day
28°F
NE 9 mph
Precip.
0%
0%
Night
34°F
E 3 mph
Precip.
0%
0%
19.03
thu
thu
Day
32°F
W 3 mph
Precip.
0%
0%
Night
34°F
NE 2 mph
Precip.
0%
0%
20.03
fri
fri
Day
41°F
W 2 mph
Precip.
0%
0%
Night
36°F
NE 2 mph
Precip.
0%
0%
21.03
sat
sat
Day
32°F
SW 5 mph
Precip.
0%
0%
Night
32°F
W 12 mph
Precip.
100%
100%
22.03
sun
sun
Day
27°F
SW 19 mph
Precip.
100%
100%
Night
14°F
SW 1 mph
Precip.
0%
0%
23.03
mon
mon
Day
30°F
E 2 mph
Precip.
0%
0%
Night
28°F
NE 6 mph
Precip.
0%
0%
24.03
tue
tue
Day
39°F
E 6 mph
Precip.
0%
0%
Night
30°F
SW 11 mph
Precip.
0%
0%
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 32.4°F. The highest and lowest sea temperatures during the month were 32.7°F and 31.6°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 35.5°F. The highest and lowest sea temperatures during the month were 38.7°F and 34.0°F.
Air temperature in Duluth, °F
Precipitation total in Duluth, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Duluth
Duluth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Duluth
Local time: 17:38
March 18, wednesday
1800
36°F
NE
8 mph
8 mph
2100
34°F
NE
7 mph
7 mph
March 19, thursday
0000
34°F
E
3 mph
3 mph
0300
34°F
SE
3 mph
3 mph
0600
25°F
SW
4 mph
4 mph
0900
27°F
NW
2 mph
2 mph
1200
32°F
W
3 mph
3 mph
1500
34°F
NW
2 mph
2 mph
