Duluth Weather Forecast
- 73
- 93
Becoming Sunny
- 71
- 93
Chance Thunderstorms
- 69
- 88
Thunderstorms Likely
- 70
- 86
Chance Thunderstorms
- 73
- 91
Mostly Sunny
- 74
- 95
Mostly Sunny
- 74
- 97
Hot
Today 22 Jul Pottawatomie
Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 90s. Southwest Winds around 5 Mph, becoming south 10 to 15 Mph. Chance of rain 20 percent.
Tonight 22 Jul Pottawatomie
Mostly clear. Lows in the mid 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.
Duluth Temperature Statistics
July Temperature
Marysville Municipal Airport (31.1 miles)
Lowest 1 July, 2025
59 °FAverage July
78.2 °FHighest 10 July, 2025
98.6 °F
Climate (2020–Present)
Marysville Municipal Airport (31.1 miles)
Average Low 2020–2025
43.2 °FAverage 2020–2025
54.4 °FAverage High 2020–2025
65.8 °F