August Weather in River Falls, United States

Last updated: June 24, 2025

In August, the average temperature in River Falls, United States is a comfortable 21°C (70°F). However, be prepared for a range, as temperatures can dip to a minimum of 10°C (51°F) and soar to a maximum of 32°C (90°F). You'll also want to pack an umbrella, as 126 mm (5.0 in) of precipitation falls over 11 days. With an average humidity of 81%, expect a decidedly tropical feel during your stay!

August Temperature in River Falls

In August in River Falls, the average temperature is 21°C (70°F). Maximums can reach 32°C (90°F) and minimums can be as low as 10°C (51°F). This makes River Falls an ideal destination for travelers looking to enjoy mild to warm weather during this time.

August Weather in River Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in River Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In River Falls, August typically has an average temperature of 21°C (70°F), with highs reaching up to 32°C (90°F) and lows dropping to around 10°C (51°F).

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

August Precipitation in River Falls

In River Falls in August, the total precipitation amount is 126 mm (5.0 in) spread over 11 days.

August Precipitation Trends in River Falls

The chart displays monthly precipitation patterns in River Falls, 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 River Falls, August typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in River Falls

In River Falls in August, humidity is 81%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace, making outdoor activities slightly uncomfortable and necessitating frequent breaks in the shade or air conditioning for a refreshing escape.

August Average Humidity in River Falls

This chart illustrates the average monthly humidity levels in River Falls, 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 River Falls is approximately 81%, 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 River Falls

In River Falls 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 River Falls.

Maximum UV Index Levels in River Falls for August

The chart shows the monthly maximum UV Index (UVI) for River Falls 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 River Falls typically reaches 9, which falls under the very high exposure category.

Data source: River Falls 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 River Falls Compares to Other Months

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

This table compares monthly weather conditions in River Falls, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	32 mm (1.3 inches)	87%	low
February Weather	-8°C (18°F)	42 mm (1.7 inches)	90%	moderate
March Weather	1°C (33°F)	58 mm (2.3 inches)	85%	moderate
April Weather	6°C (44°F)	89 mm (3.5 inches)	84%	high
May Weather	15°C (59°F)	143 mm (5.6 inches)	78%	very high
June Weather	21°C (71°F)	125 mm (4.9 inches)	80%	very high
July Weather	23°C (74°F)	109 mm (4.3 inches)	81%	very high
August Weather	21°C (70°F)	126 mm (5.0 inches)	81%	very high
September Weather	18°C (64°F)	112 mm (4.4 inches)	81%	high
October Weather	9°C (48°F)	104 mm (4.1 inches)	84%	moderate
November Weather	1°C (33°F)	41 mm (1.6 inches)	88%	moderate
December Weather	-5°C (24°F)	53 mm (2.1 inches)	84%	low