Arnold Weather Forecast
- 35
- 47
Mostly Cloudy
- 42
- 56
Rain Showers
- 16
- 51
Rain/Snow
- 18
- 33
Mostly Sunny
- 28
- 42
Chance Snow
- 23
- 43
Chance Snow
- 19
- 37
Chance Snow
Today 13 Mar Carlton/South St. Louis
Partly sunny. Near steady temperature in the lower 50s. East Winds 5 to 10 Mph with Gusts up to 20 Mph.
Tonight 13 Mar Carlton/South St. Louis
Mostly cloudy and not as cool. Near steady temperature in the lower 40s. East Winds 5 to 10 Mph with Gusts up to 20 Mph.
Arnold Temperature Statistics
March Temperature
Duluth International Airport (5 miles)
Lowest 1 March, 2025
2.8 °FAverage March
29.4 °FHighest 10 March, 2025
61 °F
Climate (2020–Present)
Duluth International Airport (5 miles)
Average Low 2020–2025
33.6 °FAverage 2020–2025
42.3 °FAverage High 2020–2025
51 °F