Des Moines skyline above the Des Moines River

Weather · August

Des Moines weather in August

Average highs of 84°F, lows of 64°F and 4.2 in of rain, from 30 years of weather records.

August is Des Moines’s 2nd warmest month, with average highs of 84°F and lows of 64°F. That is 2° cooler than July, and 23° above the yearly average high.

Average high
84°F
Average low
64°F
Precipitation
4.2 in
Wet days
9
Sunrise · sunset
6:22 AM · 8:15 PM

August across the year

  1. 31°14°Jan
  2. 36°18°Feb
  3. 49°30°Mar
  4. 62°41°Apr
  5. 72°52°May
  6. 82°62°Jun
  7. 86°66°Jul
  8. 84°64°Aug
  9. 77°55°Sep
  10. 63°43°Oct
  11. 48°30°Nov
  12. 36°20°Dec

High and low Rain

What to wear in August

  • Warm days: shorts and T-shirts.
  • Pack an umbrella or rain jacket: rain or snow falls on about 9 days this month.

Around Des Moines

Gray's Lake Park Winter, Des Moines
Gray's Lake Park WinterJesse, Robbins · CC BY-SA 4.0
801 Grand And Downtown Des Moines
801 Grand And Downtown Des MoinesCorey Coyle · CC BY 3.0
Burns United Methodist Church Des Moines IA
Burns United Methodist Church Des Moines IAC. A. Tucker · CC BY-SA 3.0

See Des Moines

A look around town before you go.

5 things to see and do in Des Moines, Iowa from bus life travels video thumbnail

THINGS TO DO · YOUTUBE SHORT

5 things to see and do in Des Moines, Iowa from bus life travels

A local activity Short shared by The Hive Drive.

Watch on YouTube ↗
3 things to do in Des Moines (Iowa) video thumbnail

THINGS TO DO · YOUTUBE SHORT

3 things to do in Des Moines (Iowa)

A local activity Short shared by Travel Tour.

Watch on YouTube ↗

August compared with the months around it

MonthHighLowRain
July86°F66°F3.8 in
August84°F64°F4.2 in
September77°F55°F3.2 in

Planning a trip? See the best time to visit Des Moines and today’s forecast.

Questions

How hot does it get in Des Moines in August?

Average highs are 84°F and average lows 64°F, for a daily mean of 74°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Des Moines in August?

August averages 4.2 in of precipitation over about 9 days with at least 0.01 in. It is the 3rd wettest month of the year.

What time is sunset in Des Moines in August?

Around mid-August the sun rises about 6:22 AM and sets about 8:15 PM, for roughly 13.9 hours of daylight.

Is August a good time to visit Des Moines?

Yes. August is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, Des Moines Intl Ap station (3.9 mi from downtown). Sunrise and sunset are calculated for August 15 at the city’s coordinates.

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