Excessive Heat Watch 9:00 PM Excessive Heat Warning — Emmet, IA, Kossuth, IA, Palo Alto, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, 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, Davis, IA, Winnebago, IA, Worth, IA, Hancock, IA, Cerro Gordo, IA, Franklin, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA 10:00 PM

Polk County, Iowa, United States

Last updated: 3:34 PM CDT  ·  Refresh
32°C
Feels like 40°
Partly Cloudy
▲ 33°  /  ▼ 24°
Wind
17 mph S
Humidity
70%
Dew Point
25°
Pressure
28.78 inHg
Visibility
10 mi
UV Index
8.3
Cloud Cover
42%
Sunrise
5:42 AM
Sunset
8:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Polk County is currently partly cloudy at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4505 J/kg) — isolated convective development possible. Sunrise: 5:42AM · Sunset: 8:52PM.

Alerts

Excessive Heat Watch
Expires 9:00 PM
Excessive Heat Warning
Emmet, IA, Kossuth, IA, Palo Alto, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, 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, Davis, IA, Winnebago, IA, Worth, IA, Hancock, IA, Cerro Gordo, IA, Franklin, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA
Expires 10:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
5%
4 PM
32°
5%
5 PM
33°
5%
6 PM
33°
8%
7 PM
32°
14%
8 PM
31°
18%
9 PM
30°
5%
10 PM
30°
8%
11 PM
29°
8%
12 AM
29°
8%
1 AM
28°
8%
2 AM
28°
9%
3 AM
27°
9%
4 AM
27°
5%
5 AM
24°
5%
6 AM
24°
5%
7 AM
25°
5%
8 AM
26°
5%
9 AM
28°
5%
10 AM
30°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
32°
3%
2 PM
32°
13%
7-Day Forecast
Today
33° 24°
Partly Cloudy.
Tue
34° 24°
Mostly Clear with a 40% chance of rain.
Wed
35° 24°
Partly Cloudy with a 54% chance of rain.
Thu
36° 24°
Mostly Clear with a 52% chance of rain.
Fri
33° 23°
Clear with a 60% chance of rain.
Sat
33° 22°
Thunderstorm, 90% chance.
Sun
31° 19°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Partly Cloudy 5% 17 mph S 70%
4 PM 32° Partly Cloudy 5% 18 mph S 69%
5 PM 33° Partly Cloudy 5% 17 mph S 71%
6 PM 33° Partly Cloudy 8% 16 mph S 72%
7 PM 32° Mostly Cloudy 14% 14 mph S 74%
8 PM 31° Overcast 18% 12 mph S 78%
9 PM 30° Mostly Cloudy 5% 11 mph S 80%
10 PM 30° Mostly Cloudy 8% 11 mph S 79%
11 PM 29° Partly Cloudy 8% 12 mph S 78%
12 AM 29° Partly Cloudy 8% 12 mph SSW 77%
1 AM 28° Partly Cloudy 8% 11 mph SSW 76%
2 AM 28° Partly Cloudy 9% 10 mph SSW 75%
3 AM 27° Mostly Cloudy 9% 9 mph SSW 74%
4 AM 27° Partly Cloudy 5% 8 mph SSW 75%
5 AM 24° Partly Cloudy 5% 8 mph SSW 76%
6 AM 24° Partly Cloudy 5% 9 mph S 76%
7 AM 25° Partly Cloudy 5% 10 mph S 74%
8 AM 26° Partly Cloudy 5% 12 mph SSW 69%
9 AM 28° Mostly Clear 5% 13 mph SSW 65%
10 AM 30° Mostly Clear 3% 14 mph SSW 62%
11 AM 31° Mostly Clear 3% 14 mph SSW 60%
12 PM 32° Clear 3% 14 mph SSW 58%
1 PM 32° Clear 3% 14 mph SSW 58%
2 PM 32° Clear 13% 14 mph SSW 58%
15-Day Forecast
Today
6/29
Partly Cloudy
8%
24°
33°
Tue
6/30
Mostly Clear
40%
24°
34°
Wed
7/1
Partly Cloudy
54%
24°
35°
Thu
7/2
Mostly Clear
52%
24°
36°
Fri
7/3
Clear
60%
23°
33°
Sat
7/4
Thunderstorm
90%
22°
33°
Sun
7/5
Drizzle
60%
19°
31°
Mon
7/6
Clear
60%
19°
31°
Tue
7/7
Drizzle
60%
19°
31°
Wed
7/8
Drizzle
60%
19°
33°
Thu
7/9
Drizzle
60%
20°
31°
Fri
7/10
Drizzle
60%
19°
31°
Sat
7/11
Drizzle
60%
19°
30°
Sun
7/12
Drizzle
60%
18°
30°
Mon
7/13
Drizzle
60%
19°
31°
51
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
51 AQI 9.3 µg/m³
O3
Ground-level ozone
32 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 51 Moderate 32 51
Wed 79 Moderate 34 79
Thu 59 Moderate 35 59
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 Mon Jun 29, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE5307 J/kg
MLCAPE4217 J/kg
MUCAPE5307 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-8.8
Kinematics
0–6 km Shear31 kt
0–1 km Shear11 kt
Eff. Shear25 kt
0–1 km SRH25
0–3 km SRH-27
Eff. SRH-27
Storm Motion202° @ 40 kt
0–1 km EHI0.8
Composite Parameters
Sig. Tornado0.5
STP (eff)0.0
Supercell0.0
K-Index36.1
Thermo & Levels
PWAT1.87 in
0–3 km LR6.1 °C/km
700–500 LR7.1 °C/km
Total Totals51.8
LCL883 hPa
LFC974 hPa
EL126 hPa
Freezing Lvl15,922 ft