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Washtenaw County (Ann Arbor)
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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

  • Until now, August 2026 in Washtenaw County has been nearly identical to the historical average, with a temperature of 28.1 °F (showing only a slight deviation of 0 °F).

  • Expect cooler weather in the next days in Washtenaw County with the forecast suggesting a temperature of 23.4 °F, lower than the historical average.

  • In general, the average temperature in Washtenaw County at the beginning of August is 28.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.1 °F by the end of August.

    • Rain 🌧️

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

    • More

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

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
75 %
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
26°
2
Sunny
26°
3
Sunny
29°
4
Partly cloudy
29°
5
Overcast
30°
6
Cloudy
29°
7
Mist
30°
8
Light rain shower
30°
9
Fog
32°
10
Cloudy
30°
11
Thundery outbreaks possible
29°
12
Mist
28°
13
Mist
28°
14
Partly cloudy
29°
15
Mist
27°
16
Mist
27°
17
Fog
28°
18
Overcast
27°
19
Overcast
27°
20
Overcast
26°
21
Overcast
26°
22
Mist
26°
23
Mist
28°
24
Sunny
25°
25
Overcast
27°
26
Sunny
26°
27
Sunny
28°
28
Sunny
25°
29
Overcast
22°
30
Light rain shower
22°
31
Patchy rain possible
26°

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
 26° /17° 2 mm 8
Aug. 2 Sunny
Sunny
 26° /15° 5.9 mm 7
Aug. 3 Sunny
Sunny
 29° /14° 0 mm 9
Aug. 4 Partly cloudy
Partly cloudy
 29° /14° 0 mm 9
Aug. 5 Overcast
Overcast
 30° /15° 0.1 mm 8
Aug. 6 Cloudy
Cloudy
 29° /19° 2.5 mm 7
Aug. 7 Mist
Mist
 30° /18° 1.7 mm 8
Aug. 8 Light rain shower
Light rain shower
 30° /20° 5.8 mm 8
Aug. 9 Fog
Fog
 32° /17° 4.1 mm 9
Aug. 10 Cloudy
Cloudy
 30° /19° 12.5 mm 8
Aug. 11 Thundery outbreaks possible
Thundery outbreaks possible
 29° /20° 3.2 mm 8
Aug. 12 Mist
Mist
 28° /20° 4.4 mm 7
Aug. 13 Mist
Mist
 28° /19° 0.4 mm 8
Aug. 14 Partly cloudy
Partly cloudy
 29° /18° 0.7 mm 8
Aug. 15 Mist
Mist
 27° /18° 0.2 mm 6
Aug. 16 Mist
Mist
 27° /17° 8.6 mm 5
Aug. 17 Fog
Fog
 28° /18° 0 mm 8
Aug. 18 Overcast
Overcast
 27° /14° 0.1 mm 7
Aug. 19 Overcast
Overcast
 27° /17° 2 mm 6
Aug. 20 Overcast
Overcast
 26° /17° 0.2 mm 5
Aug. 21 Overcast
Overcast
 26° /16° 2.1 mm 7
Aug. 22 Mist
Mist
 26° /16° 6.9 mm 5
Aug. 23 Mist
Mist
 28° /16° 0 mm 6
Aug. 24 Sunny
Sunny
 25° /11° 0 mm 7.1
Aug. 25 Overcast
Overcast
 27° /15° 0 mm 7.3
Aug. 26 Sunny
Sunny
 26° /15° 2.7 mm 5.9
Aug. 27 Sunny
Sunny
 28° /18° 1.8 mm 6.8
Aug. 28 Sunny
Sunny
 25° /16° 0 mm 7
Aug. 29 Overcast
Overcast
 22° /16° 0 mm 5
Aug. 30 Light rain shower
Light rain shower
 22° /16° 14.6 mm 5
Aug. 31 Patchy rain possible
Patchy rain possible
 26° /17° 1.7 mm 7
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 ☀️
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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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