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June Weather in East Alton, United States

Last updated: June 24, 2025

In June, the average temperature in East Alton, United States is a warm 25°C (77°F). Expect minimums around 12°C (54°F) and maximums soaring to 36°C (97°F). During this month, be prepared for 111 mm (4.4 in) of precipitation over approximately 11 days, coupled with an average humidity of 83%.

June Temperature in East Alton

In June in East Alton, the average temperature is 25°C (77°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop to as low as 12°C (54°F). This makes it a perfect time for travelers to enjoy a variety of outdoor activities, but it's advisable to pack layers to stay comfortable throughout the day.

June Weather in East Alton: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in East Alton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In East Alton, June typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (97°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec313446546776797672594338
Data source: Temperature data for East Alton 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 East Alton

In East Alton in June, the precipitation amount is 111 mm (4.4 in), occurring over the course of 11 days.

June Precipitation Trends in East Alton

The chart displays monthly precipitation patterns in East Alton, 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 East Alton, June typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7580133132156111100120641037557
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in East Alton

In East Alton in June humidity is 83%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and seek shade to enjoy their adventures comfortably.

June Average Humidity in East Alton

This chart illustrates the average monthly humidity levels in East Alton, 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 East Alton is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in East Alton

In East Alton 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 East Alton.

Maximum UV Index Levels in East Alton for June

The chart shows the monthly maximum UV Index (UVI) for East Alton 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 East Alton typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: East Alton 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 East Alton Compares to Other Months

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

This table compares monthly weather conditions in East Alton, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)75 mm (3.0 inches)82%moderate
February Weather1°C (35°F)80 mm (3.1 inches)80%moderate
March Weather8°C (46°F)133 mm (5.2 inches)80%high
April Weather12°C (55°F)132 mm (5.2 inches)80%very high
May Weather19°C (67°F)156 mm (6.1 inches)82%very high
June Weather25°C (77°F)111 mm (4.4 inches)83%extreme
July Weather26°C (79°F)100 mm (3.9 inches)81%extreme
August Weather24°C (76°F)120 mm (4.7 inches)80%very high
September Weather22°C (72°F)64 mm (2.5 inches)76%very high
October Weather15°C (59°F)102 mm (4.0 inches)76%high
November Weather6°C (44°F)75 mm (2.9 inches)85%moderate
December Weather3°C (38°F)57 mm (2.2 inches)86%moderate

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