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August Weather in Idaho City, United States

Last updated: June 24, 2025

In Idaho City, United States, the average temperature in August hovers around 20°C (68°F). Expect a range from a minimum of 2°C (37°F) to a scorching maximum of 37°C (98°F). During this month, anticipate 20 mm (0.8 in) of precipitation over approximately 2 days, and enjoy moderate average humidity at 50%.

August Temperature in Idaho City

In August in Idaho City, the average temperature is 20°C (68°F). Maximum temperatures can reach as high as 37°C (98°F), while the minimum can drop to a chilly 2°C (37°F). Be prepared for a wide range of temperatures when traveling during this time!

August Weather in Idaho City: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Idaho City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Idaho City, August typically has an average temperature of 20°C (68°F), with highs reaching up to 37°C (98°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec252635404959706858433325
Data source: Temperature data for Idaho City 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 Idaho City

In Idaho City in August, the precipitation amount is 20 mm (0.8 in) over the course of 2 days.

August Precipitation Trends in Idaho City

The chart displays monthly precipitation patterns in Idaho City, 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 Idaho City, August typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec981269079684752131517785
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Idaho City

In Idaho City in August, humidity is 50%. With an average temperature of 20°C (68°F), this humidity feels like a pleasant, refreshing embrace, making it ideal for traveling as long as you stay hydrated and take occasional breaks in shaded areas.

August Average Humidity in Idaho City

This chart illustrates the average monthly humidity levels in Idaho City, 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 Idaho City is approximately 50%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%85%79%71%71%66%50%48%65%84%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Idaho City

In Idaho City in August, 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 Idaho City.

Maximum UV Index Levels in Idaho City for August

The chart shows the monthly maximum UV Index (UVI) for Idaho City 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 Idaho City typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3578111111109642
Data source: Idaho City 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 Idaho City Compares to Other Months

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

This table compares monthly weather conditions in Idaho City, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)98 mm (3.9 inches)88%moderate
February Weather-3°C (26°F)126 mm (5.0 inches)89%moderate
March Weather1°C (35°F)90 mm (3.6 inches)85%high
April Weather4°C (40°F)79 mm (3.1 inches)79%very high
May Weather9°C (49°F)68 mm (2.7 inches)71%extreme
June Weather15°C (60°F)47 mm (1.8 inches)71%extreme
July Weather21°C (70°F)5 mm (0.2 inches)66%extreme
August Weather20°C (68°F)20 mm (0.8 inches)50%very high
September Weather14°C (58°F)31 mm (1.2 inches)48%very high
October Weather6°C (43°F)51 mm (2.0 inches)65%high
November Weather1°C (33°F)77 mm (3.0 inches)84%moderate
December Weather-4°C (25°F)85 mm (3.4 inches)87%low

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