World Resorts USA Des Moines Weather

Des Moines weather in August

Weather in Des Moines: August

Average day temperature: 83.9°F
Average night temperature: 66.9°F
Number of sunny days: 16 days
Day length: 13.2 - 14.4 hours
Number of rainy days: 2 days
Precipitation totals: 0.7 in.

Air temperature in August, °F

Show year:
2026
2025
2024

The highest day temperature during August of 2026 was 93°F. At the same time the lowest night temperature was 59°F. Daily and nightly averages during August were 82.9°F and 67.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in August are sunny but cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Des Moines in August is 0.7 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 8.2 mph It makes August one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 9.1.

Best time for vacation in Des Moines

Sunniest months:
October 18 days
September 17 days
August 16 days
Warmest months:
August 83.9 °F
July 83.7 °F
June 80.5 °F
Coldest months:
January 26.8 °F
February 33.0 °F
December 35.5 °F
Rainiest months:
May 4 days
June 3 days
September 2 days
Windiest months:
April 11.8 mph
March 11.4 mph
November 10.1 mph

Des Moines on a weather map

Des Moines
+63°F
SW 9 mph
Feels like: +63°F
Precip.: 1%
Places in USA:
Name
°F
+63°F
+66°F
+77°F
+66°F
+68°F
+84°F
+70°F
+64°F
+68°F
+59°F
+68°F
+82°F
+82°F
+81°F
+66°F
24 Hours Forecast
Des Moines
Local time: 11:28
October 29, thursday
1200
63°F
SW
9 mph
1500
66°F
SW
9 mph
1800
59°F
SW
7 mph
2100
54°F
W
7 mph
October 30, friday
0000
50°F
W
7 mph
0300
54°F
W
11 mph
0600
54°F
NW
7 mph
0900
54°F
W
11 mph
Units of measurement: °C / °F