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Snoqualmie Pass (WA)
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Snoqualmie Pass (WA)
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United States weather

Weather in Snoqualmie Pass, Washington for August 2026

Your guide to Snoqualmie Pass weather in August - trends and predictions

    Temperatures

  • In general, the average temperature in Snoqualmie Pass at the beginning of August is 12.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.4 °F by the end of August.

    • Rain 🌧️

  • With an average of 5 rainy days, Snoqualmie Pass experiences minimal rainfall in August.

    • More

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Average dry days
26
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/12°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Snoqualmie Pass Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Heavy rain at times
14°
2
Mist
16°
3
Mist
11°
4
Overcast
10°
5
Mist
17°
6
Moderate or heavy rain shower
12°
7
Moderate rain at times
10°
8
Mist
17°
9
Cloudy
21°
10
Sunny
25°
11
Sunny
28°
12
Sunny
27°
13
Cloudy
18°
14
Mist
15°
15
Heavy rain at times
15°
16
Light rain
13°
17
Mist
17°
18
Mist
16°
19
Cloudy
17°
20
Mist
16°
21
Sunny
23°
22
Sunny
26°
23
Overcast
29°
24
Partly cloudy
30°
25
Thundery outbreaks possible
28°
26
Cloudy
27°
27
Overcast
20°
28
Fog
22°
29
Thundery outbreaks possible
24°
30
Mist
23°
31
Sunny
27°

Temperatures trend during August in Snoqualmie Pass

See the weather trend as well as the moving average line

August weather in Snoqualmie Pass day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Heavy rain at times
Heavy rain at times
 14° /9° 17.6 mm 2
Aug. 2 Mist
Mist
 16° /11° 0 mm 6
Aug. 3 Mist
Mist
 11° /9° 0 mm 2
Aug. 4 Overcast
Overcast
 10° /8° 0 mm 2
Aug. 5 Mist
Mist
 17° /9° 0 mm 5
Aug. 6 Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /10° 17.5 mm 4
Aug. 7 Moderate rain at times
Moderate rain at times
 10° /7° 7.9 mm 2
Aug. 8 Mist
Mist
 17° /7° 0 mm 9
Aug. 9 Cloudy
Cloudy
 21° /10° 0 mm 10
Aug. 10 Sunny
Sunny
 25° /12° 0 mm 10
Aug. 11 Sunny
Sunny
 28° /15° 0 mm 9
Aug. 12 Sunny
Sunny
 27° /18° 0 mm 9
Aug. 13 Cloudy
Cloudy
 18° /11° 0 mm 9
Aug. 14 Mist
Mist
 15° /10° 0 mm 4
Aug. 15 Heavy rain at times
Heavy rain at times
 15° /11° 39.1 mm 1
Aug. 16 Light rain
Light rain
 13° /11° 19.7 mm 2
Aug. 17 Mist
Mist
 17° /10° 0 mm 4
Aug. 18 Mist
Mist
 16° /11° 0 mm 5
Aug. 19 Cloudy
Cloudy
 17° /10° 0 mm 8
Aug. 20 Mist
Mist
 16° /9° 0 mm 7
Aug. 21 Sunny
Sunny
 23° /8° 0 mm 8
Aug. 22 Sunny
Sunny
 26° /15° 0 mm 8
Aug. 23 Overcast
Overcast
 29° /17° 0 mm 8
Aug. 24 Partly cloudy
Partly cloudy
 30° /19° 0 mm 8
Aug. 25 Thundery outbreaks possible
Thundery outbreaks possible
 28° /20° 0 mm 8
Aug. 26 Cloudy
Cloudy
 27° /17° 0 mm 7
Aug. 27 Overcast
Overcast
 20° /15° 0 mm 5
Aug. 28 Fog
Fog
 22° /14° 0 mm 8
Aug. 29 Thundery outbreaks possible
Thundery outbreaks possible
 24° /15° 0 mm 3
Aug. 30 Mist
Mist
 23° /12° 0 mm 6
Aug. 31 Sunny
Sunny
 27° /16° 0 mm 7
Next
Important Notice
Our weather forecast for Snoqualmie Pass 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 Snoqualmie Pass forecast closer to your planned date for the most up-to-date weather information.
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Snoqualmie Pass in August - FAQ

What are the expected maximum and minimum temperatures in Snoqualmie Pass during August?

Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Snoqualmie Pass during August?

Significant rainfall exceeding 101.8 mm is expected in Snoqualmie Pass during August, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Snoqualmie Pass during August?

The average wind speed in Snoqualmie Pass during August is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Snoqualmie Pass

Explore the daily rainfall trends and prepare for Snoqualmie Passs August weather 💧
Typically, Snoqualmie Pass has 5 rainy days in August with a total of 101.8 mm of rainfall.

UV exposure in Snoqualmie Pass during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Snoqualmie Pass?

Get accurate weather forecasts for Snoqualmie Pass, located at latitude 47.392 and longitude -121.4. Stay updated with localized weather information tailored for Snoqualmie Pass.

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