Mount Rainier (WA)
August
Weather in Mount Rainier, Washington for August 2027
Your guide to Mount Rainier weather in August - trends and predictions
In general, the average temperature in Mount Rainier at the beginning of August is 26.3 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 24.1 °F by the end of August.
Mount Rainier experiences moderate rainfall in August, with an average of 6 rainy days and a total precipitation of 85.2 mm.
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Temperatures
Rain 🌧️
More
25
Dry days
6
Rainy days
0
Snow days
25°/12°
Temperatures
11 km/h
Avg max wind
63 %
Avg humidity
Mount Rainier Weather August
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Temperatures trend during August in Mount Rainier
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August weather in Mount Rainier day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Heavy rain at times | 20° /13° | 2.2 mm | 9 | |
| Aug. 2 |  Patchy rain possible | 21° /10° | 0.9 mm | 10 | |
| Aug. 3 |  Sunny | 25° /9° | 0 mm | 10 | |
| Aug. 4 | Sunny | 28° /11° | 0 mm | 9 | |
| Aug. 5 | Sunny | 31° /13° | 0 mm | 9 | |
| Aug. 6 | Sunny | 30° /13° | 0 mm | 9 | |
| Aug. 7 | Sunny | 29° /13° | 0 mm | 9 | |
| Aug. 8 | Sunny | 28° /14° | 0 mm | 9 | |
| Aug. 9 |  Cloudy | 25° /12° | 0 mm | 9 | |
| Aug. 10 |  Overcast | 24° /11° | 0 mm | 9 | |
| Aug. 11 | Overcast | 24° /11° | 0 mm | 9 | |
| Aug. 12 | Patchy rain possible | 24° /14° | 0.2 mm | 8 | |
| Aug. 13 | Overcast | 26° /12° | 0 mm | 9 | |
| Aug. 14 | Cloudy | 27° /13° | 0 mm | 9 | |
| Aug. 15 | Patchy rain possible | 23° /12° | 0.2 mm | 7 | |
| Aug. 16 |  Partly cloudy | 23° /12° | 0 mm | 8 | |
| Aug. 17 | Overcast | 26° /12° | 0 mm | 5 | |
| Aug. 18 | Overcast | 26° /13° | 0 mm | 8 | |
| Aug. 19 | Cloudy | 27° /12° | 0 mm | 8 | |
| Aug. 20 | Sunny | 30° /13° | 0 mm | 8 | |
| Aug. 21 | Overcast | 27° /14° | 0 mm | 3 | |
| Aug. 22 | Patchy rain possible | 23° /14° | 0.2 mm | 2 | |
| Aug. 23 | Patchy rain possible | 23° /14° | 1.4 mm | 7 | |
| Aug. 24 | Overcast | 28° /11° | 0 mm | 8 | |
| Aug. 25 | Partly cloudy | 29° /15° | 0 mm | 7 | |
| Aug. 26 | Partly cloudy | 26° /13° | 0 mm | 7 | |
| Aug. 27 |  Moderate rain at times | 23° /13° | 1.5 mm | 5 | |
| Aug. 28 | Patchy rain possible | 21° /11° | 0.4 mm | 5 | |
| Aug. 29 |  Moderate rain | 21° /10° | 78.2 mm | 2 | |
| Aug. 30 | Sunny | 22° /10° | 0 mm | 5 | |
| Aug. 31 | Overcast | 27° /10° | 0 mm | 2 | |
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Important Notice
Our weather forecast for Mount Rainier in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Mount Rainier forecast closer to your planned date for the most up-to-date weather information.
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Mount Rainier in August - FAQ
What are the expected maximum and minimum temperatures in Mount Rainier during August?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Mount Rainier during August?
Moderate rainfall is anticipated in Mount Rainier during August, with a total of 85.2 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Mount Rainier during August?
The average wind speed in Mount Rainier during August is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Mount Rainier
Explore the daily rainfall trends and prepare for Mount Rainiers August weather 💧
Typically, Mount Rainier has 6 rainy days in August with a total of 85.2 mm of rainfall.
UV exposure in Mount Rainier during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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