Iowa State Capitol

Museum State capitol building in Des Moines with golden dome

A Beaux‑Arts state capitol in Des Moines with a gold‑leaf dome, legislative chambers and guided tours; visited for architecture and civic history.

Main image

The Iowa State Capitol in Des Moines is the seat of the state government and the location of the Iowa Legislature and the governor’s principal offices. The building is noted for its large gilded central dome and four smaller corner domes.

Completed in the late 19th century, the Capitol houses legislative chambers, ceremonial spaces, and offices, and it contains significant interior decoration including murals, stained glass, and carved woodwork. The central rotunda is a major interior focal point and provides an observation area for city views.

The building was constructed over a period in the late 1800s and has been maintained as the core seat of state government since its completion. It remains an active working capitol with regular legislative sessions and public events.

The Capitol sits in downtown Des Moines and is a prominent component of the city’s civic core, within walking distance of other municipal and cultural institutions.

  • Gold-covered dome: The capitol's central dome is covered in gold leaf and the building features four subsidiary domes, creating a distinctive skyline profile.
  • Public tours: Free guided tours are offered to the public and commonly include access to the rotunda, legislative chambers, and observation areas during scheduled hours.

What to See #

  • Rotunda and observation area: The building's central rotunda rises beneath the main dome and is richly decorated with murals and statuary; an observation area provides panoramic views of downtown Des Moines.
  • House and Senate chambers: The legislative chambers include the House chamber and the Senate chamber, both preserved with period furnishings and decorative artwork tied to the building's 19th-century completion.
Iowa State Capitol
Des Moines, Iowa State Capitol, 1007 E Grand Ave, Des Moines, IA 50319, United States
41.5912, -93.6038
Mon-Fri 9:00am-4:30pm (tours may be scheduled outside these times)
Free entry to grounds; guided tours and special exhibits may have fees

How to Get to Iowa State Capitol #

The Capitol is in downtown Des Moines at 1007 E Grand Ave, a short walk from the Pappajohn Sculpture Park and downtown hotels. Des Moines Metro Transit buses serve nearby routes; parking is available at municipal lots.

Tips for Visiting Iowa State Capitol #

  • Join a guided tour to see interior murals and the legislative chambers; volunteer guides often have colourful anecdotes about the building's construction.
  • Visit the observation deck for a close look at the gold-leafed dome and the surrounding capitol grounds.
  • Check the state legislature calendar-public access to some areas may be limited during sessions or special events.

Best Time to Visit Iowa State Capitol #

Spring through autumn is best for visiting the capitol grounds and taking guided interior tours.

Spring
Apr-Jun · 5-25°C
Cherry blossoms and comfortable touring weather in Des Moines.
Summer
Jul-Aug · 20-32°C
Warm weather and long days; interior guided tours are available.
Autumn
Sep-Oct · 5-22°C
Crisp air and fall foliage on the capitol grounds.

Weather & Climate near Iowa State Capitol #

Climate

Iowa State Capitol's climate is classified as Hot-Summer Continental - Hot-Summer Continental climate with warm summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -12°C to 31°C. Moderate rainfall (882 mm/year).

Air Quality: AQI 31 Good
Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
43°
Warmest Month
-34°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -1°C and lows of -12°C. The driest month with just 25 mm and partly cloudy skies.

45 Poor

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-12° -1°
83%
Humidity
Very Humid

Weather

25 mm
Rainfall
4.6 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.4h daylight

February

February is freezing with highs of 2°C and lows of -8°C. Light rainfall and partly cloudy skies.

53 Acceptable

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-8°
81%
Humidity
Very Humid

Weather

29 mm
Rainfall
4.5 m/s
Wind
Light Breeze
0.4
UV Index
Low
10.5h daylight

March

March is cold with highs of 9°C and lows of -2°C. Moderate rainfall (57 mm) and partly cloudy skies.

60 Good

Comfort

Feels Like Cold
C
Temperature
-2°
76%
Humidity
Very Humid

Weather

57 mm
Rainfall
4.9 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
11.8h daylight

April

April is cool with highs of 17°C and lows of 4°C. Regular rainfall (90 mm) and partly cloudy skies.

66 Good

Comfort

11°
Feels Like Cool
11°C
Temperature
17°
71%
Humidity
Very Humid

Weather

90 mm
Rainfall
5.1 m/s
Wind
Light Breeze
1.2
UV Index
High
13.2h daylight

May

May is cool with highs of 23°C and lows of 11°C. Significant rainfall (110 mm) and partly cloudy skies.

74 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
11° 23°
74%
Humidity
Very Humid

Weather

110 mm
Rainfall
4.7 m/s
Wind
Light Breeze
1.6
UV Index
Very High
14.4h daylight

June

June is mild with highs of 28°C and lows of 16°C. The wettest month with heavy rain (119 mm) and partly cloudy skies.

80 Excellent

Comfort

22°
Feels Like Mild
22°C
Temperature
16° 28°
74%
Humidity
Very Humid

Weather

119 mm
Rainfall
3.9 m/s
Wind
Light Breeze
1.9
UV Index
Very High
15.0h daylight

July

July is the warmest month with highs of 31°C and lows of 19°C. Significant rainfall (107 mm).

82 Excellent

Comfort

25°
Feels Like Warm
25°C
Temperature
19° 31°
70%
Humidity
Humid

Weather

107 mm
Rainfall
3.2 m/s
Wind
Light Breeze
2.0
UV Index
Extreme
14.7h daylight

August

August is mild with highs of 29°C and lows of 17°C. Significant rainfall (106 mm).

82 Excellent

Comfort

23°
Feels Like Mild
23°C
Temperature
17° 29°
69%
Humidity
Humid

Weather

106 mm
Rainfall
3.0 m/s
Wind
Light Breeze
1.7
UV Index
Very High
13.7h daylight

September

September is mild with highs of 25°C and lows of 12°C. Regular rainfall (87 mm).

82 Excellent

Comfort

19°
Feels Like Mild
19°C
Temperature
12° 25°
69%
Humidity
Humid

Weather

87 mm
Rainfall
3.4 m/s
Wind
Light Breeze
1.2
UV Index
High
12.3h daylight

October

October is cool with highs of 18°C and lows of 6°C. Moderate rainfall (68 mm) and partly cloudy skies.

72 Very Good

Comfort

12°
Feels Like Cool
12°C
Temperature
18°
71%
Humidity
Very Humid

Weather

68 mm
Rainfall
4.1 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
11.0h daylight

November

November is cold with highs of 8°C and lows of -2°C. Moderate rainfall (51 mm) and partly cloudy skies.

54 Acceptable

Comfort

Feels Like Cold
C
Temperature
-2°
77%
Humidity
Very Humid

Weather

51 mm
Rainfall
4.5 m/s
Wind
Light Breeze
0.3
UV Index
Low
9.7h daylight

December

December is freezing with highs of 1°C and lows of -8°C. Moderate rainfall (33 mm) and partly cloudy skies.

43 Poor

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-9°
84%
Humidity
Very Humid

Weather

33 mm
Rainfall
4.4 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.1h daylight

Nearby Attractions to Iowa State Capitol