Polk County, Iowa, United States

Last updated: 5:48 AM CDT  ·  Refresh
22°C
Feels like 24°
Partly Cloudy
▲ 26°  /  ▼ 17°
Wind
5 mph WNW
Humidity
96%
Dew Point
21°
Pressure
29.06 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
41%
Sunrise
6:24 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Polk County is currently partly cloudy at 22°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:24AM · Sunset: 8:12PM.

Alerts

No active alerts for this location.
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
15%
6 AM
21°
25%
7 AM
22°
27%
8 AM
22°
27%
9 AM
22°
27%
10 AM
23°
35%
11 AM
23°
40%
12 PM
24°
34%
1 PM
25°
21%
2 PM
24°
18%
3 PM
24°
31%
4 PM
23°
18%
5 PM
26°
5%
6 PM
26°
3%
7 PM
24°
3%
8 PM
23°
3%
9 PM
21°
3%
10 PM
21°
3%
11 PM
20°
3%
12 AM
20°
3%
1 AM
20°
3%
2 AM
19°
7%
3 AM
19°
6%
4 AM
19°
6%
7-Day Forecast
Today
26° 17°
Mostly Cloudy with a 40% chance of rain.
Mon
29° 17°
Partly Cloudy with a 35% chance of rain.
Tue
31° 18°
Heavy Rain, 85% chance.
Wed
27° 16°
Mostly Cloudy with a 44% chance of rain.
Thu
26° 14°
Clear.
Fri
29° 13°
Clear with a 30% chance of rain.
Sat
31° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 22° Partly Cloudy 15% 5 mph WNW 96%
6 AM 21° Partly Cloudy 25% 5 mph WNW 96%
7 AM 22° Mostly Cloudy 27% 6 mph NW 93%
8 AM 22° Overcast 27% 7 mph NNW 90%
9 AM 22° Overcast 27% 8 mph NNW 87%
10 AM 23° Overcast 35% 10 mph N 86%
11 AM 23° Overcast 40% 10 mph N 83%
12 PM 24° Overcast 34% 9 mph NNW 80%
1 PM 25° Mostly Cloudy 21% 9 mph NNW 79%
2 PM 24° Mostly Cloudy 18% 8 mph NNW 80%
3 PM 24° Mostly Cloudy 31% 7 mph NNW 82%
4 PM 23° Mostly Cloudy 18% 7 mph NNW 81%
5 PM 26° Partly Cloudy 5% 7 mph NNW 79%
6 PM 26° Mostly Clear 3% 7 mph NNW 78%
7 PM 24° Mostly Clear 3% 6 mph NNW 80%
8 PM 23° Clear 3% 5 mph NNW 84%
9 PM 21° Clear 3% 5 mph NNW 87%
10 PM 21° Clear 3% 4 mph NNW 88%
11 PM 20° Clear 3% 4 mph NNW 89%
12 AM 20° Clear 3% 4 mph NNW 89%
1 AM 20° Clear 3% 4 mph NW 90%
2 AM 19° Mostly Clear 7% 4 mph NW 91%
3 AM 19° Mostly Clear 6% 4 mph NW 92%
4 AM 19° Mostly Clear 6% 4 mph NW 92%
15-Day Forecast
Today
8/16
Mostly Cloudy
40%
17°
26°
Mon
8/17
Partly Cloudy
35%
17°
29°
Tue
8/18
Heavy Rain
85%
18°
31°
Wed
8/19
Mostly Cloudy
44%
16°
27°
Thu
8/20
Clear
16%
14°
26°
Fri
8/21
Clear
30%
13°
29°
Sat
8/22
Clear
17%
16°
31°
Sun
8/23
Drizzle
43%
17°
32°
Mon
8/24
Drizzle
44%
19°
32°
Tue
8/25
Clear
44%
19°
29°
Wed
8/26
Drizzle
60%
18°
31°
Thu
8/27
Drizzle
60%
18°
32°
Fri
8/28
Drizzle
60%
18°
33°
Sat
8/29
Drizzle
60%
18°
33°
Sun
8/30
Drizzle
60%
17°
31°
31
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
29 AQI 5.4 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 31 Good 31 29
Mon 42 Good 23 42
Tue 42 Good 31 42
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 Aug 16, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE124 J/kg
MLCAPE33 J/kg
MUCAPE180 J/kg
SBCIN-159 J/kg
MLCIN-211 J/kg
Lifted Index-0.8
Kinematics
0–6 km Shear20 kt
0–1 km Shear5 kt
Eff. Shear17 kt
0–1 km SRH-2
0–3 km SRH36
Eff. SRH36
Storm Motion323° @ 22 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.7
Thermo & Levels
PWAT1.78 in
0–3 km LR4.4 °C/km
700–500 LR5.4 °C/km
Total Totals42.4
LCL975 hPa
LFC542 hPa
EL321 hPa
Freezing Lvl15,676 ft