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United States weather

Weather in Clark County, Washington for August 2026

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

    Temperatures

  • So far, August 2026 in Clark County is slightly warmer than the historical average by 1 °F.

  • The forecast for the next days in Clark County predicts temperatures to be around 30 °F, close to the historical average.

  • In general, the average temperature in Clark County at the beginning of August is 28.7 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 28.4 °F by the end of August.

    • Rain 🌧️

  • Clark County experiences moderate rainfall in August, with an average of 7 rainy days and a total precipitation of 41.8 mm.

    • More

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

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/15°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
60 %
Avg humidity

Clark County Weather August

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

Temperatures trend during August in Clark County

See the weather trend as well as the moving average line

August weather in Clark County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Overcast
Overcast
 27° /14° 0.6 mm 7
Aug. 2 Partly cloudy
Partly cloudy
 29° /15° 0 mm 8
Aug. 3 Partly cloudy
Partly cloudy
 28° /14° 0 mm 8
Aug. 4 Overcast
Overcast
 30° /13° 0 mm 8
Aug. 5 Sunny
Sunny
 30° /14° 0.1 mm 7
Aug. 6 Sunny
Sunny
 28° /15° 6.6 mm 7
Aug. 7 Sunny
Sunny
 29° /14° 0 mm 7
Aug. 8 Overcast
Overcast
 29° /14° 0 mm 7
Aug. 9 Sunny
Sunny
 31° /14° 0 mm 7.6
Aug. 10 Sunny
Sunny
 29° /11° 0 mm 7.6
Aug. 11 Sunny
Sunny
 30° /11° 0 mm 7.9
Aug. 12 Patchy rain possible
Patchy rain possible
 25° /15° 0.3 mm 4
Aug. 13 Sunny
Sunny
 32° /12° 0 mm 6.8
Aug. 14 Sunny
Sunny
 32° /14° 0 mm 8
Aug. 15 Sunny
Sunny
 29° /14° 0 mm 7
Aug. 16 Sunny
Sunny
 27° /12° 0 mm 7
Aug. 17 Partly cloudy
Partly cloudy
 28° /14° 0 mm 7
Aug. 18 Partly cloudy
Partly cloudy
 26° /18° 0.5 mm 7
Aug. 19 Sunny
Sunny
 31° /17° 0 mm 8
Aug. 20 Sunny
Sunny
 32° /16° 0 mm 8
Aug. 21 Sunny
Sunny
 33° /17° 0 mm 8
Aug. 22 Sunny
Sunny
 34° /15° 0 mm 8
Aug. 23 Overcast
Overcast
 27° /14° 3.4 mm 6
Aug. 24 Sunny
Sunny
 29° /14° 0.6 mm 7
Aug. 25 Patchy rain possible
Patchy rain possible
 30° /15° 0.3 mm 7
Aug. 26 Sunny
Sunny
 32° /16° 0 mm 8
Aug. 27 Partly cloudy
Partly cloudy
 29° /15° 0.1 mm 7
Aug. 28 Overcast
Overcast
 27° /13° 0 mm 6
Aug. 29 Overcast
Overcast
 27° /14° 0 mm 6
Aug. 30 Overcast
Overcast
 28° /13° 0 mm 6
Aug. 31 Light rain shower
Light rain shower
 26° /14° 1.1 mm 6
Next
Important Notice
Our weather forecast for Clark 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 Clark County forecast closer to your planned date for the most up-to-date weather information.
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Clark County in August - FAQ

What are the expected maximum and minimum temperatures in Clark County during August?
During August, expect a variety of temperatures with highs around 28° and lows near 15°, suitable for diverse activities and preferences.

How much rainfall should be expected in Clark County during August?
In August, Clark County can expect light to moderate rainfall, totaling 41.8 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.

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

August rainfall patterns in Clark County

Explore the daily rainfall trends and prepare for Clark Countys August weather 💧
Typically, Clark County has 7 rainy days in August with a total of 41.8 mm of rainfall.

UV exposure in Clark County during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Top locations in Clark County
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HendersonLas VegasNorth Las VegasParadiseSpring ValleySunrise ManorThorpVancouver
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Location coordinates Where is Clark County?

Get accurate weather forecasts for Clark County, located at latitude 45.639 and longitude -122.661. Stay updated with localized weather information tailored for Clark County.

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