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Chelan County (Wenatchee)
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United States weather

Weather in Chelan County, Washington for August 2025

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

    Official Weather Alert ⚠️

  • Extreme Heat Warning - See hour by hour.

    • Temperatures

  • Until now, August 2025 in Chelan County is slightly cooler than the historical average by -0.9 °F.

  • The forecast for the next days in Chelan County predicts a temperature of 30.4 °F, which is cooler than the historical average.

  • In general, the average temperature in Chelan County at the beginning of August is 30.3 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 32.4 °F by the end of August.

    • Rain 🌧️

  • With an average of 2 rainy days, Chelan County experiences minimal rainfall in August.

    • More

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

Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/12°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
45 %
Avg humidity

Chelan County Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
29°
2
Overcast
36°
3
Partly cloudy
32°
4
Overcast
30°
5
Sunny
31°
6
Sunny
28°
7
Sunny
26°
8
Sunny
31°
9
Overcast
32°
10
Overcast
34°
11
Partly cloudy
33°
12
Sunny
33°
13
Sunny
30°
14
Sunny
26°
15
Cloudy
28°
16
Overcast
26°
17
Sunny
28°
18
Cloudy
28°
19
Partly cloudy
29°
20
Patchy rain possible
26°
21
Partly cloudy
27°
22
Patchy rain possible
29°
23
Moderate or heavy rain shower
30°
24
Moderate rain at times
26°
25
Partly cloudy
29°
26
Weather Alert Partly cloudy
37°
27
Patchy rain possible
32°
28
Overcast
32°
29
Sunny
33°
30
Sunny
35°
31
Patchy rain possible
29°

Temperatures trend during August in Chelan County

See the weather trend as well as the moving average line

August weather in Chelan County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Sunny
Sunny
 29° /14° 2.6 mm 7
Aug. 2 Overcast
Overcast
 36° /14° 0 mm 8
Aug. 3 Partly cloudy
Partly cloudy
 32° /13° 0 mm 8
Aug. 4 Overcast
Overcast
 30° /11° 0 mm 7
Aug. 5 Sunny
Sunny
 31° /10° 0 mm 8
Aug. 6 Sunny
Sunny
 28° /13° 0 mm 7
Aug. 7 Sunny
Sunny
 26° /10° 0 mm 6
Aug. 8 Sunny
Sunny
 31° /11° 0 mm 8
Aug. 9 Overcast
Overcast
 32° /13° 0 mm 7
Aug. 10 Overcast
Overcast
 34° /14° 0 mm 8
Aug. 11 Partly cloudy
Partly cloudy
 33° /13° 0 mm 9
Aug. 12 Sunny
Sunny
 33° /14° 0 mm 9
Aug. 13 Sunny
Sunny
 30° /12° 0 mm 8
Aug. 14 Sunny
Sunny
 26° /9° 0 mm 6
Aug. 15 Cloudy
Cloudy
 28° /10° 0 mm 7
Aug. 16 Overcast
Overcast
 26° /12° 1.7 mm 6
Aug. 17 Sunny
Sunny
 28° /11° 0.2 mm 7
Aug. 18 Cloudy
Cloudy
 28° /11° 0.1 mm 6
Aug. 19 Partly cloudy
Partly cloudy
 29° /9° 0 mm 7
Aug. 20 Patchy rain possible
Patchy rain possible
 26° /12° 0.3 mm 6
Aug. 21 Partly cloudy
Partly cloudy
 27° /10° 0 mm 7
Aug. 22 Patchy rain possible
Patchy rain possible
 29° /12° 0.2 mm 7
Aug. 23 Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /11° 7.8 mm 7
Aug. 24 Moderate rain at times
Moderate rain at times
 26° /14° 4.7 mm 7
Aug. 25 Partly cloudy
Partly cloudy
 29° /14° 0 mm 8
Aug. 26 Partly cloudy
Partly cloudy
 37° /16° 0 mm 1.5
Aug. 27 Patchy rain possible
Patchy rain possible
 32° /15° 0.2 mm 0.8
Aug. 28 Overcast
Overcast
 32° /14° 0 mm 1.2
Aug. 29 Sunny
Sunny
 33° /17° 0 mm 1.7
Aug. 30 Sunny
Sunny
 35° /14° 0.1 mm 0
Aug. 31 Patchy rain possible
Patchy rain possible
 29° /7° 2 mm 4
Next
Important Notice
Our weather forecast for Chelan 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 Chelan County forecast closer to your planned date for the most up-to-date weather information.
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Chelan County in August - FAQ

What are the expected maximum and minimum temperatures in Chelan County during August?
Enjoy moderate daytime temperatures of up to 29° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Chelan County during August?
In August, Chelan County can expect light to moderate rainfall, totaling 25.9 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Chelan County during August?
The average wind speed in Chelan County during August is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Chelan County

Explore the daily rainfall trends and prepare for Chelan Countys August weather 💧

UV exposure in Chelan County during August

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

Get accurate weather forecasts for Chelan County, located at latitude 47.423 and longitude -120.31. Stay updated with localized weather information tailored for Chelan County.

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