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August Weather in Polson, United States

Last updated: June 24, 2025

In Polson, United States, the average temperature in August is a pleasant 20°C (68°F). However, temperatures can vary significantly, with a minimum of 7°C (44°F) and a maximum reaching 38°C (101°F). Visitors can expect about 24 mm (0.9 in) of precipitation over 3 days, alongside an average humidity of 66%.

August Temperature in Polson

In August in Polson, the average temperature is 20°C (68°F). Maximums can reach 38°C (101°F) and minimums can be as low as 7°C (44°F). This variety in temperatures makes it a great time for travelers to pack layers and enjoy both warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Polson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Polson, August typically has an average temperature of 20°C (68°F), with highs reaching up to 38°C (101°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec262334415260696858433529
Data source: Temperature data for Polson 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 Polson

In Polson in August, the precipitation amount is 24 mm (0.9 in) over a span of 3 days.

August Precipitation Trends in Polson

The chart displays monthly precipitation patterns in Polson, 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 Polson, August typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec518953787159162439717471
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Polson

In Polson in August, humidity is 66%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities enjoyable but potentially a bit sticky, so travelers should stay hydrated and consider light, breathable clothing for comfort.

August Average Humidity in Polson

This chart illustrates the average monthly humidity levels in Polson, 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 Polson is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%89%85%80%78%77%66%67%77%89%95%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Polson

In Polson 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 Polson.

Maximum UV Index Levels in Polson for August

The chart shows the monthly maximum UV Index (UVI) for Polson 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 Polson typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467991097532
Data source: Polson 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 Polson Compares to Other Months

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

This table compares monthly weather conditions in Polson, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)51 mm (2.0 inches)93%low
February Weather-5°C (23°F)89 mm (3.5 inches)92%moderate
March Weather1°C (34°F)53 mm (2.1 inches)89%high
April Weather5°C (41°F)78 mm (3.1 inches)85%high
May Weather11°C (52°F)71 mm (2.8 inches)80%very high
June Weather16°C (60°F)59 mm (2.3 inches)78%very high
July Weather21°C (69°F)16 mm (0.6 inches)77%very high
August Weather20°C (68°F)24 mm (0.9 inches)66%very high
September Weather14°C (58°F)39 mm (1.5 inches)67%high
October Weather6°C (44°F)71 mm (2.8 inches)77%moderate
November Weather2°C (35°F)74 mm (2.9 inches)89%moderate
December Weather-1°C (30°F)71 mm (2.8 inches)95%low

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