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Weather in Mesa, Arizona for August 2026

Your guide to Mesa weather in August - trends and predictions

    Official Weather Alert ⚠️

  • Extreme Heat Warning - See hour by hour.

    • Temperatures

  • So far, August 2026 in Mesa is slightly warmer than the historical average by 0.6 °F.

  • Expect cooler weather in the next days in Mesa with the forecast suggesting a temperature of 40.4 °F, lower than the historical average.

  • In general, the average temperature in Mesa at the beginning of August is 43.7 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 41.3 °F by the end of August.

    • Rain 🌧️

  • The climate of Mesa in August is notably wet, with an average of 11 rainy days, and a total of 19.8 mm of precipitation.

    • More

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

Average dry days
20
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
41°/29°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
29 %
Avg humidity

Mesa Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
43°
2
Sunny
44°
3
Sunny
45°
4
Sunny
44°
5
Sunny
44°
6
Sunny
43°
7
Moderate rain at times
43°
8
Sunny
43°
9
Weather Alert Dust haze
47°
10
Dust haze
42°
11
Dust haze
40°
12
Patchy rain possible
34°
13
Patchy rain possible
33°
14
Sunny
36°
15
Sunny
38°
16
Sunny
40°
17
Sunny
41°
18
Sunny
42°
19
Sunny
44°
20
Sunny
41°
21
Sunny
44°
22
Sunny
43°
23
Sunny
40°
24
Cloudy
41°
25
Sunny
41°
26
Sunny
41°
27
Sunny
40°
28
Sunny
41°
29
Sunny
42°
30
Sunny
42°
31
Thundery outbreaks possible
42°

Temperatures trend during August in Mesa

See the weather trend as well as the moving average line

August weather in Mesa day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Sunny
Sunny
 43° /29° 0.2 mm 10
Aug. 2 Sunny
Sunny
 44° /31° 0.2 mm 11
Aug. 3 Sunny
Sunny
 45° /30° 0.1 mm 11
Aug. 4 Sunny
Sunny
 44° /29° 0.4 mm 11
Aug. 5 Sunny
Sunny
 44° /30° 0.5 mm 11
Aug. 6 Sunny
Sunny
 43° /29° 1.2 mm 11
Aug. 7 Moderate rain at times
Moderate rain at times
 43° /29° 1 mm 10
Aug. 8 Sunny
Sunny
 43° /30° 0.8 mm 10
Aug. 9 Dust haze
Dust haze
 47° /31° 0 mm 9
Aug. 10 Dust haze
Dust haze
 42° /31° 0.9 mm 8.4
Aug. 11 Dust haze
Dust haze
 40° /29° 0.1 mm 9.2
Aug. 12 Patchy rain possible
Patchy rain possible
 34° /30° 2.4 mm 9.8
Aug. 13 Patchy rain possible
Patchy rain possible
 33° /25° 15.6 mm 8
Aug. 14 Sunny
Sunny
 36° /28° 3.4 mm 9
Aug. 15 Sunny
Sunny
 38° /31° 0 mm 9
Aug. 16 Sunny
Sunny
 40° /32° 1.2 mm 9
Aug. 17 Sunny
Sunny
 41° /32° 0 mm 10
Aug. 18 Sunny
Sunny
 42° /32° 0 mm 10
Aug. 19 Sunny
Sunny
 44° /30° 0 mm 10
Aug. 20 Sunny
Sunny
 41° /29° 0 mm 10
Aug. 21 Sunny
Sunny
 44° /34° 0 mm 10
Aug. 22 Sunny
Sunny
 43° /33° 0 mm 10
Aug. 23 Sunny
Sunny
 40° /29° 0.1 mm 9
Aug. 24 Cloudy
Cloudy
 41° /29° 0.1 mm 9
Aug. 25 Sunny
Sunny
 41° /29° 0.1 mm 9
Aug. 26 Sunny
Sunny
 41° /28° 0 mm 10
Aug. 27 Sunny
Sunny
 40° /29° 0.1 mm 9
Aug. 28 Sunny
Sunny
 41° /30° 0.1 mm 9
Aug. 29 Sunny
Sunny
 42° /29° 0 mm 10
Aug. 30 Sunny
Sunny
 42° /28° 0.1 mm 10
Aug. 31 Thundery outbreaks possible
Thundery outbreaks possible
 42° /29° 0.3 mm 9
Next
Important Notice
Our weather forecast for Mesa 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 Mesa forecast closer to your planned date for the most up-to-date weather information.
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Mesa in August - FAQ

What are the expected maximum and minimum temperatures in Mesa during August?
With daytime temperatures soaring above 41° and not dropping much below 29° at night, August in Mesa is quite hot. Staying hydrated and avoiding peak sun hours is advisable.

How much rainfall should be expected in Mesa during August?
Expect minimal rainfall in Mesa during August, with a total of 19.8 mm over approximately 11 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in Mesa during August?
The average wind speed in Mesa during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Mesa

Explore the daily rainfall trends and prepare for Mesas August weather 💧
Typically, Mesa has 11 rainy days in August with a total of 19.8 mm of rainfall.

UV exposure in Mesa during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Mesa?

Get accurate weather forecasts for Mesa, located at latitude 33.422 and longitude -111.823. Stay updated with localized weather information tailored for Mesa.

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