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United States weather

Weather in Grant County, Washington for August 2026

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

    Temperatures

  • In general, the average temperature in Grant County at the beginning of August is 32.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 32 °C by the end of August.

    • Rain 🌧️

  • With an average of 3 rainy days, Grant County experiences minimal rainfall in August.

    • More

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Average dry days
28
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
32°/16°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
38 %
Avg humidity

Grant County Weather August

Move between months or click on a day
July
September
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
31°
2
Sunny
39°
3
Partly cloudy
36°
4
Cloudy
32°
5
Sunny
32°
6
Sunny
30°
7
Sunny
30°
8
Sunny
33°
9
Sunny
34°
10
Overcast
36°
11
Sunny
36°
12
Sunny
35°
13
Sunny
32°
14
Sunny
29°
15
Sunny
30°
16
Patchy rain possible
27°
17
Sunny
31°
18
Sunny
30°
19
Overcast
31°
20
Partly cloudy
28°
21
Sunny
28°
22
Partly cloudy
33°
23
Heavy rain at times
32°
24
Partly cloudy
30°
25
Sunny
32°
26
Sunny
33°
27
Overcast
28°
28
Sunny
30°
29
Sunny
31°
30
Sunny
34°
31
Sunny
36°

Temperatures trend during August in Grant County

See the weather trend as well as the moving average line

August weather in Grant County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Sunny
Sunny
 31° /19° 3.5 mm 7
Aug. 2 Sunny
Sunny
 39° /20° 0 mm 9
Aug. 3 Partly cloudy
Partly cloudy
 36° /17° 0 mm 8
Aug. 4 Cloudy
Cloudy
 32° /17° 0 mm 8
Aug. 5 Sunny
Sunny
 32° /14° 0 mm 8
Aug. 6 Sunny
Sunny
 30° /17° 0 mm 8
Aug. 7 Sunny
Sunny
 30° /16° 0 mm 7
Aug. 8 Sunny
Sunny
 33° /14° 0 mm 8
Aug. 9 Sunny
Sunny
 34° /17° 0 mm 8
Aug. 10 Overcast
Overcast
 36° /17° 0 mm 9
Aug. 11 Sunny
Sunny
 36° /18° 0 mm 9
Aug. 12 Sunny
Sunny
 35° /19° 0 mm 9
Aug. 13 Sunny
Sunny
 32° /16° 0 mm 8
Aug. 14 Sunny
Sunny
 29° /11° 0 mm 7
Aug. 15 Sunny
Sunny
 30° /16° 0 mm 7
Aug. 16 Patchy rain possible
Patchy rain possible
 27° /16° 14.2 mm 6
Aug. 17 Sunny
Sunny
 31° /14° 0 mm 8
Aug. 18 Sunny
Sunny
 30° /17° 0 mm 8
Aug. 19 Overcast
Overcast
 31° /13° 0 mm 8
Aug. 20 Partly cloudy
Partly cloudy
 28° /15° 0 mm 7
Aug. 21 Sunny
Sunny
 28° /12° 0 mm 8
Aug. 22 Partly cloudy
Partly cloudy
 33° /14° 0 mm 9
Aug. 23 Heavy rain at times
Heavy rain at times
 32° /13° 1.4 mm 7
Aug. 24 Partly cloudy
Partly cloudy
 30° /14° 0 mm 7
Aug. 25 Sunny
Sunny
 32° /13° 0 mm 8
Aug. 26 Sunny
Sunny
 33° /16° 0 mm 8
Aug. 27 Overcast
Overcast
 28° /17° 0 mm 6
Aug. 28 Sunny
Sunny
 30° /12° 0 mm 8
Aug. 29 Sunny
Sunny
 31° /14° 0 mm 7
Aug. 30 Sunny
Sunny
 34° /15° 0 mm 9
Aug. 31 Sunny
Sunny
 36° /18° 0 mm 9
Next
Important Notice
Our weather forecast for Grant 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 Grant County forecast closer to your planned date for the most up-to-date weather information.
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Grant County in August - FAQ

What are the expected maximum and minimum temperatures in Grant County during August?
Expect warm days with temperatures around 32°, cooling to mild conditions of 16° after sunset. Perfect for those who enjoy warm weather.

How much rainfall should be expected in Grant County during August?
Expect minimal rainfall in Grant County during August, with a total of 19.1 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in Grant County during August?
The average wind speed in Grant County during August is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Grant County

Explore the daily rainfall trends and prepare for Grant Countys August weather 💧
Typically, Grant County has 3 rainy days in August with a total of 19.1 mm of rainfall.

UV exposure in Grant County during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Top locations in Grant County
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Moses LakeWilliamstown
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Location coordinates Where is Grant County?

Get accurate weather forecasts for Grant County, located at latitude 47.13 and longitude -119.278. Stay updated with localized weather information tailored for Grant County.

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