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June Weather in Collinsville, United States

Last updated: June 24, 2025

In June, the average temperature in Collinsville, United States reaches a pleasant 26°C (79°F). Temperatures can vary significantly, with a minimum of 13°C (55°F) and a maximum soaring to 36°C (97°F). Throughout the month, expect about 167 mm (6.6 in) of precipitation spread over 14 days, contributing to an average humidity level of 79%.

June Temperature in Collinsville

In June, in Collinsville, the average temperature is 26°C (79°F). Maximums can reach 36°C (97°F) and minimums can be as low as 13°C (55°F). This makes Collinsville an ideal destination for travelers seeking warm and pleasant weather opportunities.

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

The chart illustrates June temperature patterns in Collinsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Collinsville, June typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (97°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec485460647379818178695551
Data source: Temperature data for Collinsville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Collinsville

In Collinsville in June, the precipitation amount is 167 mm (6.6 in) over a span of 14 days.

June Precipitation Trends in Collinsville

The chart displays monthly precipitation patterns in Collinsville, 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 Collinsville, June typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec1041481171341141671171289810768123
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Collinsville

In Collinsville in June humidity is 79%. With an average temperature of 26°C (79°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel exhausting. Travelers should be prepared for a heavy air that clings to the skin, making hydration essential while navigating the sights and sounds of the city.

June Average Humidity in Collinsville

This chart illustrates the average monthly humidity levels in Collinsville, 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 Collinsville is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Collinsville

In Collinsville in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Collinsville.

Maximum UV Index Levels in Collinsville for June

The chart shows the monthly maximum UV Index (UVI) for Collinsville 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 Collinsville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111111111110864
Data source: Collinsville 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 Collinsville Compares to Other Months

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

This table compares monthly weather conditions in Collinsville, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)104 mm (4.1 inches)85%moderate
February Weather12°C (54°F)148 mm (5.8 inches)84%high
March Weather16°C (60°F)117 mm (4.6 inches)82%very high
April Weather18°C (65°F)133 mm (5.3 inches)82%extreme
May Weather23°C (74°F)114 mm (4.5 inches)82%extreme
June Weather26°C (79°F)167 mm (6.6 inches)79%extreme
July Weather27°C (81°F)117 mm (4.6 inches)82%extreme
August Weather27°C (81°F)128 mm (5.1 inches)77%extreme
September Weather25°C (78°F)98 mm (3.8 inches)74%very high
October Weather20°C (69°F)107 mm (4.2 inches)73%very high
November Weather13°C (55°F)68 mm (2.7 inches)85%high
December Weather11°C (52°F)123 mm (4.8 inches)88%moderate

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