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August Weather in Upper Alton, United States

Last updated: June 24, 2025

In Upper Alton, United States, the average temperature in August hovers around 24°C (76°F), but don't be surprised if the minimum dips to 12°C (55°F) or the maximum soars to 35°C (95°F). Expect an average humidity of 80% and prepare for about 119 mm (4.7 in) of rainfall over 11 days throughout the month. Stay comfortable and ready for all weather!

August Temperature in Upper Alton

In August in Upper Alton, the average temperature is 24°C (76°F). Maximums can reach 35°C (95°F), and minimums can be as low as 12°C (55°F). It's an ideal destination for travelers seeking warm weather while still having the option for cooler evenings.

August Weather in Upper Alton: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Upper Alton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Upper Alton, 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 (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec313446546776797672584338
Data source: Temperature data for Upper 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.

August Precipitation in Upper Alton

In Upper Alton in August, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.

August Precipitation Trends in Upper Alton

The chart displays monthly precipitation patterns in Upper Alton, 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 Upper Alton, August typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec737813212315010196119671007054
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Upper Alton

In Upper Alton 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 Upper Alton

This chart illustrates the average monthly humidity levels in Upper Alton, 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 Upper Alton 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 Upper Alton

In Upper Alton 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 Upper Alton.

Maximum UV Index Levels in Upper Alton for August

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

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

This table compares monthly weather conditions in Upper Alton, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)73 mm (2.9 inches)82%moderate
February Weather1°C (35°F)78 mm (3.1 inches)80%moderate
March Weather8°C (46°F)132 mm (5.2 inches)80%high
April Weather12°C (55°F)123 mm (4.9 inches)80%very high
May Weather19°C (67°F)150 mm (5.9 inches)82%very high
June Weather25°C (77°F)101 mm (4.0 inches)83%extreme
July Weather26°C (79°F)96 mm (3.8 inches)81%extreme
August Weather24°C (76°F)119 mm (4.7 inches)80%very high
September Weather22°C (72°F)67 mm (2.6 inches)76%very high
October Weather15°C (59°F)100 mm (3.9 inches)76%high
November Weather6°C (44°F)70 mm (2.8 inches)85%moderate
December Weather3°C (38°F)54 mm (2.1 inches)86%moderate

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