Willmar (MN) Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Willmar.

Climate overview of Willmar

Willmar, Minnesota, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to -6°C (21°F) in January.

Annual rain/snowfall is moderate at around 763 mm (30 in), with August being the wettest month. The city also has a distinct dry season from November to February.

Willmar Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Willmar — and find the best time to visit.

Monthly Temperature in Willmar

Depending on the time of the year, temperatures range from comfortable to very cold in Willmar. Average daytime temperatures reach a comfortable 28°C (82°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -6°C (21°F).

At night, temperatures range from around 16°C (61°F) in July to -16°C (3°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Willmar

Generally, Willmar has a moderate amount of precipitation, averaging 763 mm (30 in) of rain/snowfall annually. Willmar can be quite wet during August, receiving approximately 134 mm (5.3 in) of precipitation over 10 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 12 mm (0.5 in) of precipitation spread across 6 snowy days days. For more details, please visit our Willmar Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Best Time to Visit Willmar

During the months of May, June, July, August and September, Willmar enjoys pleasant weather with average temperatures ranging from 20°C (68°F) to 28°C (82°F). These months are perfect for sightseeing and exploring.

Rainfall during this time ranges from 68 mm (2.7 in) in September to 134 mm (5.3 in) in August. This means you can expect a mix of sunny days and occasional showers.

Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.

Frequently asked questions about the climate in Willmar

What is the best time to visit Willmar?

May, July and September typically offer the most optimal weather in Willmar. In contrast, January, February, March and December tend to have less optimal conditions. Willmar has a distinct dry season from November to February.

What temperatures can I expect in Willmar?

Daytime highs range from -6°C (21°F) in January to 28°C (82°F) in July. Nighttime lows range from -16°C (3°F) to 16°C (61°F). Temperatures vary considerably through the year.

How much rain does Willmar get?

Annual rainfall is around 763 mm (30 in). August is the wettest month with 134 mm (5.3 in), while January is the driest with 12 mm (0.5 in).

Willmar 3-Day Forecast

Willmar (MN) 3-Day Forecast

Willmar on the map

Willmar is highlighted — select any city to see its climate.

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