June Weather in Iowa, United States

Last updated: June 24, 2025

In June, the average temperature in Iowa, United States hovers around 27°C (81°F). You'll experience a comfortable range where the minimum dips to 17°C (62°F), while maximums can soar up to 35°C (96°F). Be prepared for 163 mm (6.4 in) of precipitation over 16 days, with humidity levels averaging a sticky 76%.

June Temperature in Iowa

In June in Iowa, the average temperature is 27°C (81°F). Maximums can reach 35°C (96°F), and minimums can be as low as 17°C (62°F). This weather makes it a great time for travelers to enjoy outdoor activities and explore the local sights comfortably.

June Weather in Iowa: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Iowa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iowa, June typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (96°F) and lows dropping to around 17°C (62°F).

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

June Precipitation in Iowa

In Iowa in June, the precipitation amount is 163 mm (6.4 in) spread out over 16 days.

June Precipitation Trends in Iowa

The chart displays monthly precipitation patterns in Iowa, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Iowa, June typically receives around 163 mm (6.4 inches) of precipitation spread over approximately 16 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Iowa

In Iowa in June, humidity is 76%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel stifling and sweat-inducing, which can be challenging for traveling.

June Average Humidity in Iowa

This chart illustrates the average monthly humidity levels in Iowa, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Iowa is approximately 76%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Iowa

In Iowa in June, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Iowa.

Maximum UV Index Levels in Iowa for June

The chart shows the monthly maximum UV Index (UVI) for Iowa in June, 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 June, the maximum UV index in Iowa typically reaches 12, which falls under the extreme exposure category.

Data source: Iowa June 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 June Weather in Iowa Compares to Other Months

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

This table compares monthly weather conditions in Iowa, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	117 mm (4.6 inches)	81%	moderate
February Weather	14°C (58°F)	107 mm (4.2 inches)	81%	very high
March Weather	18°C (65°F)	70 mm (2.7 inches)	79%	very high
April Weather	20°C (69°F)	155 mm (6.1 inches)	80%	very high
May Weather	25°C (77°F)	193 mm (7.6 inches)	81%	extreme
June Weather	27°C (81°F)	163 mm (6.4 inches)	76%	extreme
July Weather	28°C (83°F)	158 mm (6.2 inches)	73%	extreme
August Weather	28°C (83°F)	179 mm (7.1 inches)	71%	extreme
September Weather	26°C (80°F)	163 mm (6.4 inches)	72%	very high
October Weather	22°C (72°F)	122 mm (4.8 inches)	73%	very high
November Weather	16°C (60°F)	75 mm (2.9 inches)	83%	high
December Weather	14°C (57°F)	119 mm (4.7 inches)	88%	moderate