Flood Warning — Polk County, IA Heat Advisory — Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Adams, IA, Union, IA, Taylor, IA, Ringgold, IA 12:00 PM Excessive Heat Warning — Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Adams, IA, Union, IA, Taylor, IA, Ringgold, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA, Marshall, IA, Tama, IA, Jasper, IA, Poweshiek, IA, Marion, IA, Mahaska, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA 9:00 PM Extreme Heat Watch 10:00 PM

Des Moines, Iowa

Last updated: 8:56 AM CDT  ·  Refresh
28°C
Feels like 32°
Mostly Cloudy
▲ 39°  /  ▼ 24°
Wind
4 mph SSW
Humidity
74%
Dew Point
24°
Pressure
28.99 inHg
Visibility
10 mi
UV Index
5.3
Cloud Cover
61%
Sunrise
6:03 AM
Sunset
8:38 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Des Moines is currently mostly cloudy at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3980 J/kg) — isolated convective development possible. Sunrise: 6:03AM · Sunset: 8:38PM.

Alerts

Flood Warning
Polk County, IA
Expires
Heat Advisory
Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Adams, IA, Union, IA, Taylor, IA, Ringgold, IA
Expires 12:00 PM
Excessive Heat Warning
Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Adams, IA, Union, IA, Taylor, IA, Ringgold, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA, Marshall, IA, Tama, IA, Jasper, IA, Poweshiek, IA, Marion, IA, Mahaska, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA
Expires 9:00 PM
Extreme Heat Watch
Expires 10:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
11%
9 AM
31°
14%
10 AM
32°
14%
11 AM
34°
14%
12 PM
36°
3%
1 PM
37°
3%
2 PM
38°
3%
3 PM
39°
3%
4 PM
38°
3%
5 PM
38°
3%
6 PM
37°
3%
7 PM
36°
5%
8 PM
33°
8%
9 PM
32°
8%
10 PM
31°
8%
11 PM
30°
12%
12 AM
29°
12%
1 AM
28°
13%
2 AM
28°
9%
3 AM
28°
9%
4 AM
28°
19%
5 AM
27°
19%
6 AM
26°
15%
7 AM
27°
22%
7-Day Forecast
Today
39° 24°
Partly Cloudy.
Mon
38° 24°
Mostly Clear with a 24% chance of rain.
Tue
34° 22°
Mostly Cloudy with a 28% chance of rain.
Wed
34° 20°
Mostly Clear with a 37% chance of rain.
Thu
33° 19°
Rain, 71% chance.
Fri
30° 19°
Rain, 82% chance.
Sat
31° 18°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 28° Mostly Cloudy 11% 4 mph SSW 74%
9 AM 31° Partly Cloudy 14% 6 mph SSW 58%
10 AM 32° Partly Cloudy 14% 6 mph SW 56%
11 AM 34° Mostly Cloudy 14% 6 mph SW 52%
12 PM 36° Overcast 3% 5 mph SW 49%
1 PM 37° Mostly Cloudy 3% 6 mph SW 45%
2 PM 38° Mostly Cloudy 3% 7 mph SW 42%
3 PM 39° Mostly Cloudy 3% 7 mph SSW 37%
4 PM 38° Mostly Clear 3% 8 mph SSW 36%
5 PM 38° Mostly Clear 3% 9 mph SSW 37%
6 PM 37° Clear 3% 10 mph SSW 39%
7 PM 36° Partly Cloudy 5% 10 mph SSW 44%
8 PM 33° Mostly Clear 8% 10 mph SSW 48%
9 PM 32° Mostly Cloudy 8% 10 mph SSW 52%
10 PM 31° Mostly Cloudy 8% 8 mph SSW 56%
11 PM 30° Partly Cloudy 12% 7 mph SSW 60%
12 AM 29° Partly Cloudy 12% 6 mph SSW 64%
1 AM 28° Partly Cloudy 13% 7 mph SSW 66%
2 AM 28° Partly Cloudy 9% 7 mph SSW 68%
3 AM 28° Mostly Clear 9% 8 mph SSW 70%
4 AM 28° Mostly Clear 19% 7 mph SSW 72%
5 AM 27° Mostly Clear 19% 7 mph SSW 74%
6 AM 26° Clear 15% 7 mph S 76%
7 AM 27° Clear 22% 6 mph S 72%
15-Day Forecast
Today
7/26
Partly Cloudy
14%
24°
39°
Mon
7/27
Mostly Clear
24%
24°
38°
Tue
7/28
Mostly Cloudy
28%
22°
34°
Wed
7/29
Mostly Clear
37%
20°
34°
Thu
7/30
Rain
71%
19°
33°
Fri
7/31
Rain
82%
19°
30°
Sat
8/1
Clear
17%
18°
31°
Sun
8/2
Clear
8%
18°
32°
Mon
8/3
Clear
44%
19°
36°
Tue
8/4
Drizzle
51%
21°
37°
Wed
8/5
Drizzle
60%
19°
33°
Thu
8/6
Drizzle
60%
18°
32°
Fri
8/7
Drizzle
60%
18°
33°
Sat
8/8
Drizzle
60%
19°
34°
Sun
8/9
Drizzle
60%
19°
34°
52
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
52 AQI 9.9 µg/m³
O3
Ground-level ozone
39 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 52 Moderate 39 52
Tue 54 Moderate 44 54
Wed 57 Moderate 41 57
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Sun Jul 26, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3201 J/kg
MLCAPE1485 J/kg
MUCAPE3201 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-8.7
Kinematics
0–6 km Shear32 kt
0–1 km Shear8 kt
Eff. Shear29 kt
0–1 km SRH-37
0–3 km SRH-94
Eff. SRH-94
Storm Motion261° @ 27 kt
0–1 km EHI-0.7
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.4
Thermo & Levels
PWAT1.55 in
0–3 km LR5.3 °C/km
700–500 LR7.5 °C/km
Total Totals47.7
LCL924 hPa
LFC982 hPa
EL154 hPa
Freezing Lvl15,174 ft