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

Polk County, Iowa, United States

Last updated: 10:11 AM CDT  ·  Refresh
29°C
Feels like 33°
Mostly Cloudy
▲ 38°  /  ▼ 24°
Wind
4 mph SW
Humidity
69%
Dew Point
24°
Pressure
28.92 inHg
Visibility
10 mi
UV Index
5.5
Cloud Cover
74%
Sunrise
6:02 AM
Sunset
8:38 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Polk County is currently mostly cloudy at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3983 J/kg) — isolated convective development possible. Sunrise: 6:02AM · 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
29°
3%
11 AM
32°
14%
12 PM
33°
14%
1 PM
36°
7%
2 PM
37°
7%
3 PM
37°
7%
4 PM
38°
7%
5 PM
37°
22%
6 PM
38°
3%
7 PM
37°
3%
8 PM
34°
8%
9 PM
32°
8%
10 PM
31°
8%
11 PM
30°
8%
12 AM
29°
8%
1 AM
29°
8%
2 AM
28°
9%
3 AM
28°
9%
4 AM
27°
18%
5 AM
27°
19%
6 AM
26°
19%
7 AM
26°
15%
8 AM
27°
15%
9 AM
28°
24%
7-Day Forecast
Today
38° 24°
Partly Cloudy.
Mon
38° 24°
Clear.
Tue
32° 21°
Overcast with a 32% chance of rain.
Wed
32° 20°
Partly Cloudy with a 47% chance of rain.
Thu
32° 19°
Rain, 71% chance.
Fri
29° 19°
Rain, 82% chance.
Sat
30° 19°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 29° Mostly Cloudy 3% 4 mph SW 69%
11 AM 32° Partly Cloudy 14% 5 mph SW 60%
12 PM 33° Partly Cloudy 14% 6 mph SSW 57%
1 PM 36° Partly Cloudy 7% 6 mph S 53%
2 PM 37° Partly Cloudy 7% 6 mph S 51%
3 PM 37° Partly Cloudy 7% 7 mph SSE 48%
4 PM 38° Partly Cloudy 7% 7 mph SSE 46%
5 PM 37° Partly Cloudy 22% 6 mph S 43%
6 PM 38° Partly Cloudy 3% 7 mph S 42%
7 PM 37° Mostly Clear 3% 8 mph SSW 43%
8 PM 34° Partly Cloudy 8% 8 mph S 49%
9 PM 32° Partly Cloudy 8% 8 mph S 55%
10 PM 31° Mostly Cloudy 8% 8 mph S 60%
11 PM 30° Partly Cloudy 8% 7 mph S 62%
12 AM 29° Mostly Cloudy 8% 7 mph SSW 65%
1 AM 29° Overcast 8% 8 mph SSW 67%
2 AM 28° Mostly Cloudy 9% 7 mph SSW 69%
3 AM 28° Partly Cloudy 9% 7 mph SSW 71%
4 AM 27° Mostly Clear 18% 7 mph SSW 73%
5 AM 27° Mostly Clear 19% 7 mph S 75%
6 AM 26° Mostly Clear 19% 6 mph S 77%
7 AM 26° Mostly Clear 15% 6 mph SSE 78%
8 AM 27° Mostly Clear 15% 6 mph S 72%
9 AM 28° Clear 24% 6 mph SSW 68%
15-Day Forecast
Today
7/26
Partly Cloudy
8%
24°
38°
Mon
7/27
Clear
18%
24°
38°
Tue
7/28
Overcast
32%
21°
32°
Wed
7/29
Partly Cloudy
47%
20°
32°
Thu
7/30
Rain
71%
19°
32°
Fri
7/31
Rain
82%
19°
29°
Sat
8/1
Clear
17%
19°
30°
Sun
8/2
Clear
18%
18°
32°
Mon
8/3
Drizzle
44%
19°
34°
Tue
8/4
Drizzle
51%
21°
36°
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 9.8 µg/m³
O3
Ground-level ozone
40 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 52 Moderate 40 52
Tue 54 Moderate 41 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, 13:00'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
SBCAPE3489 J/kg
MLCAPE1765 J/kg
MUCAPE3489 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-9.1
Kinematics
0–6 km Shear24 kt
0–1 km Shear2 kt
Eff. Shear24 kt
0–1 km SRH12
0–3 km SRH-60
Eff. SRH-60
Storm Motion260° @ 25 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.2
STP (eff)0.0
Supercell0.0
K-Index25.3
Thermo & Levels
PWAT1.54 in
0–3 km LR5.5 °C/km
700–500 LR7.6 °C/km
Total Totals47.4
LCL911 hPa
LFC979 hPa
EL149 hPa
Freezing Lvl14,879 ft