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August Weather in Post Falls, United States

Last updated: June 24, 2025

In August, the average temperature in Post Falls, United States reaches a pleasant 22°C (72°F). However, temperatures can vary significantly, with minimums dipping to 9°C (48°F) and maximums soaring to 40°C (104°F). Rainfall is minimal, averaging just 13 mm (0.5 in) over the course of 2 days, while the average humidity sits at a comfortable 64%.

August Temperature in Post Falls

In August in Post Falls, the average temperature is 22°C (72°F), with maximums reaching 40°C (104°F) and minimums dropping to as low as 9°C (48°F). Travelers should be prepared for a range of temperatures, ensuring they have options for both warm and cool weather.

August Weather in Post Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Post Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Post Falls, August typically has an average temperature of 22°C (72°F), with highs reaching up to 40°C (104°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec302938465664737261473832
Data source: Temperature data for Post Falls 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 Post Falls

In Post Falls in August, the precipitation amount is 13 mm (0.5 in) over a span of 2 days.

August Precipitation Trends in Post Falls

The chart displays monthly precipitation patterns in Post Falls, 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 Post Falls, August typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec928876726030613427410396
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Post Falls

In Post Falls in August humidity is 64%. With an average temperature of 22°C (72°F), this humidity feels like a warm, tropical embrace, making travel enjoyable yet slightly sticky, prompting visitors to seek shade or refreshing beverages while exploring the vibrant surroundings.

August Average Humidity in Post Falls

This chart illustrates the average monthly humidity levels in Post Falls, 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 Post Falls is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Post Falls

In Post Falls 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 Post Falls.

Maximum UV Index Levels in Post Falls for August

The chart shows the monthly maximum UV Index (UVI) for Post Falls 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 Post Falls typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2456891097532
Data source: Post Falls 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 Post Falls Compares to Other Months

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

This table compares monthly weather conditions in Post Falls, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)92 mm (3.6 inches)89%low
February Weather-1°C (30°F)88 mm (3.4 inches)89%moderate
March Weather3°C (38°F)76 mm (3.0 inches)87%moderate
April Weather8°C (46°F)72 mm (2.8 inches)84%high
May Weather13°C (56°F)60 mm (2.3 inches)77%very high
June Weather18°C (65°F)30 mm (1.2 inches)78%very high
July Weather23°C (73°F)5 mm (0.2 inches)77%very high
August Weather22°C (72°F)13 mm (0.5 inches)64%very high
September Weather16°C (61°F)42 mm (1.6 inches)62%high
October Weather8°C (47°F)74 mm (2.9 inches)79%moderate
November Weather3°C (38°F)103 mm (4.1 inches)87%moderate
December Weather0°C (32°F)95 mm (3.8 inches)90%low

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