August Weather in Willmar, United States

Last updated: June 24, 2025

In August, the average temperature in Willmar, United States hovers around 21°C (70°F), providing a comfortable atmosphere for various activities. Expect a minimum of 9°C (48°F) and a maximum of 34°C (93°F), showcasing a delightful range for all ages. However, be prepared for 149 mm (5.9 in) of precipitation over 11 days, contributing to the region's lush greenery. With an average humidity of 83%, the air feels pleasantly warm, making it ideal for enjoying the local scenery.

August Temperature in Willmar

In August in Willmar, the average temperature is 21°C (70°F). Maximums can reach 34°C (93°F), and minimums can be as low as 9°C (48°F). This weather makes it an ideal time for outdoor adventures and exploring the beautiful landscapes.

August Weather in Willmar: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Willmar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willmar, August typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 9°C (48°F).

Data source: Temperature data for Willmar generated using information from the Copernicus Climate Change Service.

August Precipitation in Willmar

In Willmar in August, the total precipitation amount is 149 mm (5.9 in) spread over 11 days.

August Precipitation Trends in Willmar

The chart displays monthly precipitation patterns in Willmar, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Willmar, August typically receives around 149 mm (5.9 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Willmar

In Willmar in August humidity is 83%. With an average temperature of 21°C (70°F), this humidity feels like you’re enveloped in a warm, tropical embrace, making it essential to stay hydrated and take breaks during your travels.

August Average Humidity in Willmar

This chart illustrates the average monthly humidity levels in Willmar, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Willmar is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Willmar

In Willmar in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Willmar.

Maximum UV Index Levels in Willmar for August

The chart shows the monthly maximum UV Index (UVI) for Willmar in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Willmar typically reaches 9, which falls under the very high exposure category.

Data source: Willmar August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Willmar Compares to Other Months

Weather in Willmar varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Willmar, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Willmar, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (15°F)	20 mm (0.8 inches)	85%	moderate
February Weather	-10°C (15°F)	22 mm (0.9 inches)	89%	moderate
March Weather	0°C (32°F)	54 mm (2.1 inches)	81%	high
April Weather	6°C (42°F)	76 mm (3.0 inches)	82%	high
May Weather	15°C (59°F)	107 mm (4.2 inches)	76%	very high
June Weather	22°C (72°F)	92 mm (3.6 inches)	81%	very high
July Weather	23°C (74°F)	105 mm (4.1 inches)	82%	very high
August Weather	21°C (70°F)	149 mm (5.9 inches)	83%	very high
September Weather	17°C (64°F)	115 mm (4.5 inches)	82%	high
October Weather	8°C (47°F)	96 mm (3.8 inches)	82%	moderate
November Weather	0°C (33°F)	26 mm (1.0 inches)	87%	moderate
December Weather	-5°C (23°F)	39 mm (1.5 inches)	84%	low