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

Polk County, Iowa, United States

Last updated: 9:49 PM CDT  ·  Refresh
6°C
Feels like 4°
Clear
▲ 11°  /  ▼ 2°
Wind
7 mph NNW
Humidity
71%
Dew Point
1°
Pressure
29.52 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
7:26 AM
Sunset
6:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

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

Alerts

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
19 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
6°
3%
10 PM
6°
3%
11 PM
6°
3%
12 AM
4°
3%
1 AM
4°
3%
2 AM
4°
3%
3 AM
3°
3%
4 AM
3°
3%
5 AM
2°
14%
6 AM
2°
14%
7 AM
2°
14%
8 AM
4°
3%
9 AM
7°
3%
10 AM
9°
3%
11 AM
11°
3%
12 PM
13°
3%
1 PM
14°
3%
2 PM
15°
3%
3 PM
15°
3%
4 PM
14°
3%
5 PM
12°
3%
6 PM
11°
3%
7 PM
11°
3%
8 PM
10°
3%
7-Day Forecast
Tonight
11° 2°
Clear.
Sat
15° 2°
Fog.
Sun
19° 4°
Clear.
Mon
21° 6°
Partly Cloudy.
Tue
22° 8°
Clear.
Wed
24° 12°
Partly Cloudy.
Thu
26° 12°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 6° Clear 3% 7 mph NNW 71%
10 PM 6° Clear 3% 6 mph NNW 69%
11 PM 6° Clear 3% 5 mph NNW 71%
12 AM 4° Clear 3% 5 mph NNW 73%
1 AM 4° Clear 3% 4 mph NW 75%
2 AM 4° Clear 3% 3 mph NW 76%
3 AM 3° Clear 3% 3 mph NW 78%
4 AM 3° Mostly Clear 3% 2 mph WNW 78%
5 AM 2° Mostly Clear 14% 2 mph SW 78%
6 AM 2° Mostly Clear 14% 3 mph SSW 78%
7 AM 2° Mostly Clear 14% 4 mph SSW 77%
8 AM 4° Mostly Clear 3% 5 mph SSW 74%
9 AM 7° Fog 3% 7 mph SSW 69%
10 AM 9° Mostly Clear 3% 8 mph SSW 61%
11 AM 11° Mostly Clear 3% 10 mph SW 53%
12 PM 13° Clear 3% 11 mph SW 46%
1 PM 14° Clear 3% 11 mph SW 45%
2 PM 15° Clear 3% 11 mph SSW 44%
3 PM 15° Clear 3% 12 mph SSW 44%
4 PM 14° Clear 3% 11 mph SSW 49%
5 PM 12° Clear 3% 10 mph SSW 54%
6 PM 11° Clear 3% 9 mph SSW 58%
7 PM 11° Clear 3% 10 mph SSW 60%
8 PM 10° Clear 3% 10 mph SSW 62%
15-Day Forecast
Today
10/16
Clear
3%
2°
11°
Sat
10/17
Fog
14%
2°
15°
Sun
10/18
Clear
3%
4°
19°
Mon
10/19
Partly Cloudy
3%
6°
21°
Tue
10/20
Clear
10%
8°
22°
Wed
10/21
Partly Cloudy
17%
12°
24°
Thu
10/22
Clear
17%
12°
26°
Fri
10/23
Mostly Clear
8%
14°
26°
Sat
10/24
Drizzle
54%
12°
23°
Sun
10/25
Drizzle
54%
9°
19°
Mon
10/26
Overcast
38%
7°
17°
Tue
10/27
Clear
60%
7°
17°
Wed
10/28
Drizzle
60%
7°
18°
Thu
10/29
Drizzle
60%
8°
18°
Fri
10/30
Drizzle
60%
7°
18°
19
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
7 AQI 1.3 µg/m³
O3
Ground-level ozone
Dominant
19 AQI 22 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 19 Good 19 7
Sun 28 Good 28 13
Mon 28 Good 26 28
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 Sat Oct 17, 01:00'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
MLCAPE13 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index20.6
Kinematics
0–6 km Shear45 kt
0–1 km Shear18 kt
Eff. Shear—
0–1 km SRH79
0–3 km SRH102
Eff. SRH—
Storm Motion25° @ 34 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-21.1
Thermo & Levels
PWAT0.32 in
0–3 km LR3.0 °C/km
700–500 LR4.9 °C/km
Total Totals23.3
LCL928 hPa
LFC—
EL—
Freezing Lvl3,953 ft