June Weather in Merrillville, United States

Last updated: June 24, 2025

In June, the average temperature in Merrillville, United States is a pleasant 22°C (71°F), with minimums dipping to 10°C (51°F) and maximums soaring to 33°C (92°F). Expect 130 mm (5.1 in) of precipitation spread over about 12 days, contributing to the region's average humidity of 82%. Perfect weather for packing an umbrella and enjoying the lush surroundings!

June Temperature in Merrillville

In June in Merrillville, the average temperature is 22°C (71°F). Maximums can reach 33°C (92°F), while minimums can dip as low as 10°C (51°F). This mild climate makes Merrillville an ideal destination for travelers seeking comfortable weather for exploration and outdoor activities.

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

The chart illustrates June temperature patterns in Merrillville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merrillville, June typically has an average temperature of 22°C (71°F), with highs reaching up to 33°C (92°F) and lows dropping to around 10°C (51°F).

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

June Precipitation in Merrillville

In Merrillville in June, the precipitation amount is 130 mm (5.1 in) over a span of 12 days.

June Precipitation Trends in Merrillville

The chart displays monthly precipitation patterns in Merrillville, 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 Merrillville, June typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 12 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 Merrillville

In Merrillville in June, humidity is 82%. With an average temperature of 22°C (71°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel laborious and sweat-dripping, urging travelers to stay hydrated and seek the shade more often.

June Average Humidity in Merrillville

This chart illustrates the average monthly humidity levels in Merrillville, 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 Merrillville is approximately 82%, 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 Merrillville

In Merrillville in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Merrillville.

Maximum UV Index Levels in Merrillville for June

The chart shows the monthly maximum UV Index (UVI) for Merrillville 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 Merrillville typically reaches 10, which falls under the very high exposure category.

Data source: Merrillville 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 Merrillville Compares to Other Months

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

This table compares monthly weather conditions in Merrillville, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	73 mm (2.9 inches)	85%	moderate
February Weather	-1°C (30°F)	72 mm (2.8 inches)	85%	moderate
March Weather	4°C (39°F)	99 mm (3.9 inches)	86%	high
April Weather	9°C (48°F)	115 mm (4.5 inches)	87%	very high
May Weather	15°C (60°F)	162 mm (6.4 inches)	81%	very high
June Weather	22°C (71°F)	130 mm (5.1 inches)	82%	very high
July Weather	24°C (75°F)	102 mm (4.0 inches)	81%	very high
August Weather	23°C (73°F)	95 mm (3.7 inches)	79%	very high
September Weather	20°C (68°F)	73 mm (2.9 inches)	78%	very high
October Weather	13°C (56°F)	139 mm (5.5 inches)	81%	high
November Weather	5°C (41°F)	71 mm (2.8 inches)	89%	moderate
December Weather	1°C (35°F)	62 mm (2.4 inches)	86%	low