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: 4:53 PM CDT  ·  Refresh
32°C
Feels like 41°
Partly Cloudy
▲ 33°  /  ▼ 24°
Wind
17 mph S
Humidity
70%
Dew Point
25°
Pressure
28.77 inHg
Visibility
10 mi
UV Index
7.0
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 4580 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%
5 PM
33°
25%
6 PM
33°
25%
7 PM
32°
35%
8 PM
31°
39%
9 PM
30°
39%
10 PM
29°
34%
11 PM
29°
21%
12 AM
28°
13%
1 AM
27°
8%
2 AM
27°
8%
3 AM
27°
9%
4 AM
26°
5%
5 AM
24°
5%
6 AM
24°
5%
7 AM
26°
8%
8 AM
27°
5%
9 AM
28°
5%
10 AM
29°
3%
11 AM
32°
3%
12 PM
32°
3%
1 PM
33°
3%
2 PM
33°
13%
3 PM
33°
13%
7-Day Forecast
Today
33° 24°
Partly Cloudy with a 35% chance of rain.
Tue
34° 24°
Partly Cloudy with a 40% chance of rain.
Wed
33° 24°
Partly Cloudy with a 49% chance of rain.
Thu
33° 24°
Partly Cloudy with a 54% chance of rain.
Fri
33° 22°
Partly Cloudy with a 53% chance of rain.
Sat
33° 21°
Thunderstorm, 90% chance.
Sun
31° 19°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Partly Cloudy 5% 17 mph S 70%
5 PM 33° Partly Cloudy 25% 17 mph S 71%
6 PM 33° Partly Cloudy 25% 15 mph S 73%
7 PM 32° Partly Cloudy 35% 14 mph S 75%
8 PM 31° Mostly Cloudy 39% 12 mph S 77%
9 PM 30° Mostly Cloudy 39% 10 mph S 80%
10 PM 29° Mostly Cloudy 34% 10 mph S 80%
11 PM 29° Mostly Cloudy 21% 11 mph SSW 79%
12 AM 28° Mostly Cloudy 13% 10 mph SSW 78%
1 AM 27° Mostly Cloudy 8% 10 mph SSW 77%
2 AM 27° Mostly Cloudy 8% 10 mph SSW 76%
3 AM 27° Partly Cloudy 9% 10 mph SSW 76%
4 AM 26° Mostly Clear 5% 9 mph SSW 76%
5 AM 24° Partly Cloudy 5% 8 mph SSW 78%
6 AM 24° Mostly Clear 5% 8 mph S 77%
7 AM 26° Partly Cloudy 8% 11 mph SSW 73%
8 AM 27° Partly Cloudy 5% 12 mph SSW 69%
9 AM 28° Partly Cloudy 5% 14 mph SSW 65%
10 AM 29° Partly Cloudy 3% 14 mph SSW 62%
11 AM 32° Partly Cloudy 3% 15 mph SSW 59%
12 PM 32° Partly Cloudy 3% 15 mph SSW 57%
1 PM 33° Partly Cloudy 3% 15 mph SSW 57%
2 PM 33° Partly Cloudy 13% 14 mph SSW 57%
3 PM 33° Partly Cloudy 13% 14 mph SSW 57%
15-Day Forecast
Today
6/29
Partly Cloudy
35%
24°
33°
Tue
6/30
Partly Cloudy
40%
24°
34°
Wed
7/1
Partly Cloudy
49%
24°
33°
Thu
7/2
Partly Cloudy
54%
24°
33°
Fri
7/3
Partly Cloudy
53%
22°
33°
Sat
7/4
Thunderstorm
90%
21°
33°
Sun
7/5
Drizzle
60%
19°
31°
Mon
7/6
Overcast
60%
19°
31°
Tue
7/7
Drizzle
60%
19°
30°
Wed
7/8
Thunderstorm
60%
19°
31°
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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE5516 J/kg
MLCAPE4853 J/kg
MUCAPE5516 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-8.9
Kinematics
0–6 km Shear27 kt
0–1 km Shear13 kt
Eff. Shear20 kt
0–1 km SRH33
0–3 km SRH-13
Eff. SRH-13
Storm Motion203° @ 40 kt
0–1 km EHI1.1
Composite Parameters
Sig. Tornado0.6
STP (eff)0.0
Supercell0.0
K-Index38.1
Thermo & Levels
PWAT1.96 in
0–3 km LR6.2 °C/km
700–500 LR7.0 °C/km
Total Totals51.9
LCL882 hPa
LFC974 hPa
EL126 hPa
Freezing Lvl16,184 ft