August Weather in Weiser, United States

Last updated: June 24, 2025

In August, the average temperature in Weiser, United States hovers around 26°C (80°F), offering a delightful climate for outdoor activities. However, be prepared for a temperature range that can dip as low as 9°C (48°F) and soar to a sizzling 42°C (107°F). Expect light precipitation, averaging just 6 mm (0.2 in) over the course of 1 day, complemented by an average humidity of 63%—perfect for enjoying the warm weather while staying comfortably hydrated!

August Temperature in Weiser

In August in Weiser, the average temperature is 26°C (80°F). The maximum can reach 42°C (107°F) and the minimum can be as low as 9°C (48°F). Travelers should be prepared for significant temperature fluctuations, ensuring they have both light clothing for the heat and layers for cooler evenings.

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

The chart illustrates August temperature patterns in Weiser, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Weiser, August typically has an average temperature of 26°C (80°F), with highs reaching up to 42°C (107°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec303344516170827968524132
Data source: Temperature data for Weiser 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 Weiser

In Weiser in August, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

August Precipitation Trends in Weiser

The chart displays monthly precipitation patterns in Weiser, 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 Weiser, August typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec4455342530191611212935
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Weiser

In Weiser in August humidity is 63%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket, making outdoor activities enjoyable yet slightly sticky, so travelers should stay hydrated and take breaks in the shade.

August Average Humidity in Weiser

This chart illustrates the average monthly humidity levels in Weiser, 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 Weiser is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%91%88%84%77%78%78%63%60%77%86%90%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Weiser

In Weiser 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 Weiser.

Maximum UV Index Levels in Weiser for August

The chart shows the monthly maximum UV Index (UVI) for Weiser 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 Weiser typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356891110108542
Data source: Weiser 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 Weiser Compares to Other Months

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

This table compares monthly weather conditions in Weiser, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)44 mm (1.7 inches)90%moderate
February Weather1°C (33°F)55 mm (2.1 inches)91%moderate
March Weather7°C (44°F)34 mm (1.3 inches)88%high
April Weather11°C (52°F)25 mm (1.0 inches)84%very high
May Weather16°C (61°F)30 mm (1.2 inches)77%very high
June Weather21°C (71°F)19 mm (0.8 inches)78%extreme
July Weather28°C (82°F)1 mm (0.0 inches)77%very high
August Weather26°C (80°F)6 mm (0.2 inches)63%very high
September Weather20°C (68°F)11 mm (0.4 inches)60%very high
October Weather11°C (52°F)21 mm (0.8 inches)77%moderate
November Weather5°C (41°F)29 mm (1.1 inches)86%moderate
December Weather0°C (33°F)35 mm (1.4 inches)89%low

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