Duluth weather

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The weather guide for Duluth, Minnesota shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Duluth?

The hottest time of year in Duluth is normally July. Expect maximum daytime temperatures to reach 26°C with no heat and humidity.

Which month has the most rain in Duluth?

In terms of rainfall, August is usually the wettest month in Duluth with 100mm on average. There are normally 11 days in August with some rain.

When is it sunniest in Duluth?

The sunniest time of year in Duluth is normally July with bright sunshine on average for 66% of daylight hours; that's 10 hours of sunshine per day.

When is the sea warmest in Duluth?

The sea is usually at its warmest in Duluth in August when the water temperature reaches 16°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Duluth weather with the USA

Below the Duluth weather chart shows average maximum daytime temperature for Duluth, Minnesota, USA and the USA (Washington).

Maximum daytime temperature (°C)

Duluth, Minnesota, USA
USA (Washington)
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where's warm in Minnesota right now?

Below are the temperatures expected today at popular destinations in Minnesota. Select a destination to compare today's forecast with average weather conditions.

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