Frost Advisory — Louisa, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Henry, IL, Bureau, IL, Putnam, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO 9:00 AM Freeze 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, Butler, IA, Bremer, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Grundy, IA, Black Hawk, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Marshall, IA, Tama, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Adams, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Taylor, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA 9:00 AM

Des Moines, Iowa

Last updated: 7:42 PM CDT  ·  Refresh
9°C
Feels like 6°
Clear
▲ 11°  /  ▼ 2°
Wind
9 mph NNW
Humidity
63%
Dew Point
2°
Pressure
29.56 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
4%
Sunrise
7:26 AM
Sunset
6:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Des Moines is currently clear at 9°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:26AM · Sunset: 6:31PM.

Alerts

Frost Advisory
Louisa, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Henry, IL, Bureau, IL, Putnam, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO
Expires 9:00 AM
Freeze 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, Butler, IA, Bremer, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Grundy, IA, Black Hawk, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Marshall, IA, Tama, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Adams, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Taylor, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA
Expires 9:00 AM
20 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
11%
8 PM
8°
10%
9 PM
7°
3%
10 PM
6°
3%
11 PM
6°
3%
12 AM
5°
3%
1 AM
5°
3%
2 AM
4°
14%
3 AM
4°
14%
4 AM
4°
14%
5 AM
2°
14%
6 AM
2°
14%
7 AM
3°
14%
8 AM
4°
3%
9 AM
7°
3%
10 AM
9°
3%
11 AM
11°
3%
12 PM
12°
3%
1 PM
14°
3%
2 PM
14°
3%
3 PM
14°
3%
4 PM
14°
3%
5 PM
11°
3%
6 PM
11°
3%
7-Day Forecast
Tonight
11° 2°
Clear.
Sat
15° 2°
Fog.
Sun
18° 4°
Clear.
Mon
21° 6°
Partly Cloudy.
Tue
22° 8°
Clear.
Wed
24° 11°
Mostly Cloudy.
Thu
26° 12°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 9° Clear 11% 9 mph NNW 63%
8 PM 8° Clear 10% 7 mph NNW 64%
9 PM 7° Clear 3% 6 mph NNW 68%
10 PM 6° Clear 3% 5 mph NNW 71%
11 PM 6° Clear 3% 5 mph NNW 73%
12 AM 5° Clear 3% 4 mph NNW 75%
1 AM 5° Clear 3% 4 mph NW 77%
2 AM 4° Clear 14% 3 mph NW 78%
3 AM 4° Clear 14% 2 mph W 78%
4 AM 4° Mostly Clear 14% 2 mph WSW 79%
5 AM 2° Mostly Clear 14% 3 mph SW 79%
6 AM 2° Mostly Clear 14% 3 mph SSW 80%
7 AM 3° Fog 14% 4 mph SSW 78%
8 AM 4° Fog 3% 5 mph SSW 75%
9 AM 7° Haze 3% 7 mph SSW 69%
10 AM 9° Mostly Clear 3% 8 mph SSW 61%
11 AM 11° Clear 3% 9 mph SSW 54%
12 PM 12° Clear 3% 10 mph SW 46%
1 PM 14° Clear 3% 11 mph SSW 44%
2 PM 14° Clear 3% 11 mph SSW 44%
3 PM 14° Clear 3% 11 mph SSW 44%
4 PM 14° Clear 3% 10 mph SSW 47%
5 PM 11° Clear 3% 10 mph SSW 52%
6 PM 11° Clear 3% 9 mph SSW 57%
15-Day Forecast
Today
10/16
Clear
11%
2°
11°
Sat
10/17
Fog
14%
2°
15°
Sun
10/18
Clear
3%
4°
18°
Mon
10/19
Partly Cloudy
3%
6°
21°
Tue
10/20
Clear
7%
8°
22°
Wed
10/21
Mostly Cloudy
10%
11°
24°
Thu
10/22
Clear
7%
12°
26°
Fri
10/23
Mostly Clear
8%
14°
26°
Sat
10/24
Drizzle
54%
11°
23°
Sun
10/25
Drizzle
54%
8°
18°
Mon
10/26
Rain
60%
7°
16°
Tue
10/27
Drizzle
60%
7°
16°
Wed
10/28
Drizzle
60%
7°
17°
Thu
10/29
Drizzle
60%
8°
18°
Fri
10/30
Drizzle
60%
8°
17°
20
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
8 AQI 1.4 µg/m³
O3
Ground-level ozone
Dominant
20 AQI 22 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 20 Good 20 8
Sun 29 Good 29 12
Mon 27 Good 27 26
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE1 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index17.2
Kinematics
0–6 km Shear46 kt
0–1 km Shear17 kt
Eff. Shear—
0–1 km SRH94
0–3 km SRH94
Eff. SRH—
Storm Motion24° @ 39 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-24.7
Thermo & Levels
PWAT0.33 in
0–3 km LR3.8 °C/km
700–500 LR5.4 °C/km
Total Totals26.6
LCL901 hPa
LFC—
EL—
Freezing Lvl4,265 ft