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United States weather

Weather in Washtenaw County, Michigan for August 2026

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

    Temperatures

  • In general, the average temperature in Washtenaw County at the beginning of August is 27.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °F by the end of August.

    • Rain 🌧️

  • With an average of 3 rainy days, Washtenaw 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
26°/16°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Washtenaw County Weather August

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

Temperatures trend during August in Washtenaw County

See the weather trend as well as the moving average line

August weather in Washtenaw County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Cloudy
Cloudy
 24° /14° 0 mm 5
Aug. 2 Sunny
Sunny
 27° /12° 0 mm 7
Aug. 3 Sunny
Sunny
 28° /15° 0 mm 7
Aug. 4 Partly cloudy
Partly cloudy
 28° /15° 0 mm 7
Aug. 5 Overcast
Overcast
 28° /17° 0 mm 6
Aug. 6 Cloudy
Cloudy
 27° /19° 0 mm 6
Aug. 7 Mist
Mist
 28° /18° 0 mm 6
Aug. 8 Light rain shower
Light rain shower
 28° /20° 4.6 mm 6
Aug. 9 Fog
Fog
 32° /20° 0 mm 7
Aug. 10 Cloudy
Cloudy
 31° /21° 0 mm 7
Aug. 11 Thundery outbreaks possible
Thundery outbreaks possible
 29° /20° 0 mm 6
Aug. 12 Mist
Mist
 31° /22° 2.2 mm 7
Aug. 13 Mist
Mist
 27° /21° 0 mm 6
Aug. 14 Partly cloudy
Partly cloudy
 29° /18° 0 mm 7
Aug. 15 Mist
Mist
 30° /18° 0 mm 7
Aug. 16 Mist
Mist
 31° /20° 0 mm 7
Aug. 17 Fog
Fog
 27° /17° 0 mm 6
Aug. 18 Overcast
Overcast
 25° /15° 0 mm 6
Aug. 19 Overcast
Overcast
 25° /17° 0 mm 6
Aug. 20 Overcast
Overcast
 23° /17° 0 mm 5
Aug. 21 Overcast
Overcast
 24° /17° 0 mm 5
Aug. 22 Mist
Mist
 25° /15° 0 mm 6
Aug. 23 Mist
Mist
 28° /16° 0 mm 6
Aug. 24 Overcast
Overcast
 22° /13° 0 mm 5
Aug. 25 Overcast
Overcast
 20° /13° 0 mm 5
Aug. 26 Overcast
Overcast
 20° /7° 0 mm 5
Aug. 27 Overcast
Overcast
 22° /9° 0 mm 5
Aug. 28 Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /12° 45.7 mm 4
Aug. 29 Fog
Fog
 18° /8° 0 mm 4
Aug. 30 Fog
Fog
 22° /9° 0 mm 5
Aug. 31 Sunny
Sunny
 23° /11° 0 mm 6
Next
Important Notice
Our weather forecast for Washtenaw 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 Washtenaw County forecast closer to your planned date for the most up-to-date weather information.
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Washtenaw County in August - FAQ

What are the expected maximum and minimum temperatures in Washtenaw County during August?
During August, expect a variety of temperatures with highs around 26° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Washtenaw County during August?
Moderate rainfall is anticipated in Washtenaw County during August, with a total of 52.5 mm spread over approximately 3 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Washtenaw County during August?
The average wind speed in Washtenaw County during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Washtenaw County

Explore the daily rainfall trends and prepare for Washtenaw Countys August weather 💧
Typically, Washtenaw County has 3 rainy days in August with a total of 52.5 mm of rainfall.

UV exposure in Washtenaw County during August

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

Get accurate weather forecasts for Washtenaw County, located at latitude 42.278 and longitude -83.741. Stay updated with localized weather information tailored for Washtenaw County.

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