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Kittitas County (Snoqualmie Pass)
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United States weather

Weather in Kittitas County, Washington for August 2026

Your guide to Kittitas County weather in August - trends and predictions

    Official Weather Alert ⚠️

  • Meteorological - Air Quality Alert - See hour by hour.

    • Temperatures

  • The forecast for the upcoming days in Kittitas County predicts a temperature of 22.4 °F, which is slightly above the historical average.

  • In general, the average temperature in Kittitas County at the beginning of August is 18.1 °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, Kittitas County experiences minimal rainfall in August.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

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
71 %
Avg humidity

Kittitas County 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
15°
3
Mist
16°
4
Overcast
17°
5
Mist
22°
6
Moderate or heavy rain shower
19°
7
Weather Alert Sunny
24°
8
Sunny
23°
9
Sunny
23°
10
Sunny
23°
11
Sunny
23°
12
Patchy rain possible
18°
13
Sunny
26°
14
Sunny
30°
15
Sunny
27°
16
Partly cloudy
18°
17
Partly cloudy
19°
18
Sunny
23°
19
Patchy rain possible
14°
20
Sunny
23°
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 Kittitas County

See the weather trend as well as the moving average line

August weather in Kittitas County 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° /8° 9.9 mm 6
Aug. 2 Mist
Mist
 15° /8° 0.6 mm 8
Aug. 3 Mist
Mist
 16° /7° 0 mm 6
Aug. 4 Overcast
Overcast
 17° /9° 0 mm 6
Aug. 5 Mist
Mist
 22° /10° 0 mm 8
Aug. 6 Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /11° 8.8 mm 7
Aug. 7 Sunny
Sunny
 24° /14° 0 mm 8.2
Aug. 8 Sunny
Sunny
 23° /11° 0 mm 7.8
Aug. 9 Sunny
Sunny
 23° /8° 0 mm 7.9
Aug. 10 Sunny
Sunny
 23° /8° 0 mm 8
Aug. 11 Sunny
Sunny
 23° /9° 0 mm 6
Aug. 12 Patchy rain possible
Patchy rain possible
 18° /11° 0.1 mm 5
Aug. 13 Sunny
Sunny
 26° /9° 0 mm 7
Aug. 14 Sunny
Sunny
 30° /13° 0 mm 7
Aug. 15 Sunny
Sunny
 27° /13° 0 mm 7
Aug. 16 Partly cloudy
Partly cloudy
 18° /10° 0 mm 5
Aug. 17 Partly cloudy
Partly cloudy
 19° /9° 0 mm 5
Aug. 18 Sunny
Sunny
 23° /9° 0.6 mm 6
Aug. 19 Patchy rain possible
Patchy rain possible
 14° /7° 1 mm 3
Aug. 20 Sunny
Sunny
 23° /5° 0 mm 6
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 Kittitas County 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 Kittitas County forecast closer to your planned date for the most up-to-date weather information.
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Kittitas County in August - FAQ

What are the expected maximum and minimum temperatures in Kittitas County 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 Kittitas County during August?
Significant rainfall exceeding 101.8 mm is expected in Kittitas County during August, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Kittitas County during August?
The average wind speed in Kittitas County during August is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Kittitas County

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

UV exposure in Kittitas County during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Snoqualmie Pass
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Location coordinates Where is Kittitas County?

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

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