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August Weather in Bethalto, United States

Last updated: June 24, 2025

In August, the average temperature in Bethalto, United States is a pleasant 24°C (76°F). You can expect varies, with minimums around 12°C (54°F) and maximums peaking at 35°C (95°F). During this month, anticipate 120 mm (4.7 in) of precipitation spread over 10 days, contributing to an average humidity of a cozy 80%.

August Temperature in Bethalto

In August in Bethalto, the average temperature is 24°C (76°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 12°C (54°F). This mild climate makes Bethalto an ideal destination for travelers looking to enjoy outdoor activities while experiencing comfortable weather.

August Weather in Bethalto: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Bethalto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethalto, August typically has an average temperature of 24°C (76°F), with highs reaching up to 35°C (95°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec313446546776797672594338
Data source: Temperature data for Bethalto 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.

August Precipitation in Bethalto

In Bethalto in August, the precipitation amount is 120 mm (4.7 in) spread over a duration of 10 days.

August Precipitation Trends in Bethalto

The chart displays monthly precipitation patterns in Bethalto, 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 Bethalto, August typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7580133132156111100120641037557
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Bethalto

In Bethalto in August humidity is 80%. With an average temperature of 24°C (76°F), this humidity feels like a warm, sticky embrace that can make exploring outdoors quite draining, so it's essential to stay hydrated and take breaks in the shade while traveling.

August Average Humidity in Bethalto

This chart illustrates the average monthly humidity levels in Bethalto, 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 Bethalto is approximately 80%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Bethalto

In Bethalto 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 Bethalto.

Maximum UV Index Levels in Bethalto for August

The chart shows the monthly maximum UV Index (UVI) for Bethalto 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 Bethalto typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: Bethalto 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 Bethalto Compares to Other Months

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

This table compares monthly weather conditions in Bethalto, showing how August’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

Compare Bethalto's Climate with Cities Worldwide