Polk County, Iowa, United States

Last updated: 7:11 PM CDT · Refresh

28°C

Feels like 30°

Mostly Cloudy

▲ 29° / ▼ 19°

Wind

5 mph NE

Humidity

75%

Dew Point

22°

Pressure

28.98 inHg

Visibility

10 mi

UV Index

2.7

Cloud Cover

74%

Sunrise

5:45 AM

Sunset

8:51 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Polk County is currently mostly cloudy at 28°C. Precipitation is likely — peak probability 52% around 9 PM. Atmospheric instability is elevated (CAPE up to 2477 J/kg) — isolated convective development possible. Sunrise: 5:45AM · Sunset: 8:51PM.

44 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

28°

13%

8 PM

27°

34%

9 PM

26°

52%

10 PM

24°

34%

11 PM

24°

37%

12 AM

23°

31%

1 AM

22°

19%

2 AM

22°

19%

3 AM

22°

19%

4 AM

21°

19%

5 AM

21°

20%

6 AM

19°

17%

7 AM

19°

21%

8 AM

21°

33%

9 AM

22°

42%

10 AM

23°

33%

11 AM

24°

33%

12 PM

26°

33%

1 PM

26°

34%

2 PM

28°

25%

3 PM

28°

25%

4 PM

28°

44%

5 PM

28°

50%

6 PM

27°

50%

7-Day Forecast

Tonight

29° 19°

Mostly Cloudy with a 34% chance of rain.

Sun

29° 19°

Partly Cloudy with a 51% chance of rain.

Mon

28° 19°

Mostly Clear with a 20% chance of rain.

Tue

29° 18°

Haze.

Wed

29° 18°

Rain, 64% chance.

Thu

26° 18°

Rain, 82% chance.

Fri

27° 17°

Partly Cloudy with a 30% chance of rain.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 28° Mostly Cloudy 13% 5 mph NE 75%

8 PM 27° Mostly Cloudy 34% 3 mph NE 79%

9 PM 26° Overcast 52% 2 mph N 81%

10 PM 24° Overcast 34% 2 mph ENE 83%

11 PM 24° Mostly Cloudy 37% 3 mph NE 85%

12 AM 23° Mostly Cloudy 31% 4 mph ENE 87%

1 AM 22° Mostly Cloudy 19% 4 mph ENE 89%

2 AM 22° Mostly Cloudy 19% 4 mph N 91%

3 AM 22° Mostly Cloudy 19% 3 mph NNW 92%

4 AM 21° Mostly Cloudy 19% 3 mph NNW 94%

5 AM 21° Partly Cloudy 20% 3 mph NNW 94%

6 AM 19° Partly Cloudy 17% 3 mph N 95%

7 AM 19° Fog 21% 4 mph N 94%

8 AM 21° Partly Cloudy 33% 5 mph NNE 89%

9 AM 22° Partly Cloudy 42% 4 mph NNE 85%

10 AM 23° Partly Cloudy 33% 5 mph NNE 80%

11 AM 24° Partly Cloudy 33% 5 mph NNE 75%

12 PM 26° Partly Cloudy 33% 5 mph NNE 71%

1 PM 26° Partly Cloudy 34% 6 mph NNE 68%

2 PM 28° Partly Cloudy 25% 6 mph NNE 66%

3 PM 28° Partly Cloudy 25% 6 mph NNE 65%

4 PM 28° Partly Cloudy 44% 6 mph NNE 64%

5 PM 28° Partly Cloudy 50% 6 mph NE 67%

6 PM 27° Partly Cloudy 50% 6 mph NE 69%

15-Day Forecast

Today

7/4

Mostly Cloudy

34%

19°

29°

Sun

7/5

Partly Cloudy

51%

19°

29°

Mon

7/6

Mostly Clear

20%

19°

28°

Tue

7/7

Haze

15%

18°

29°

Wed

7/8

Rain

64%

18°

29°

Thu

7/9

Rain

82%

18°

26°

Fri

7/10

Partly Cloudy

30%

17°

27°

Sat

7/11

Clear

27%

17°

26°

Sun

7/12

Clear

42%

17°

28°

Mon

7/13

Partly Cloudy

44%

17°

29°

Tue

7/14

Mostly Cloudy

21%

19°

30°

Wed

7/15

Drizzle

60%

17°

29°

Thu

7/16

Drizzle

60%

17°

27°

Fri

7/17

Drizzle

60%

17°

27°

Sat

7/18

Drizzle

60%

18°

28°

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

PM_2.5

Fine particulate matter

23 AQI 4.3 µg/m³

O₃

Ground-level ozone

Dominant

44 AQI 48 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 44 Good 44 23

Mon 36 Good 33 36

Tue 49 Good 38 49

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Sat Jul 4, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE2793 J/kg

MLCAPE1509 J/kg

MUCAPE2793 J/kg

SBCIN-40 J/kg

MLCIN0 J/kg

Lifted Index-7.6

Kinematics

0–6 km Shear8 kt

0–1 km Shear4 kt

Eff. Shear10 kt

0–1 km SRH-7

0–3 km SRH-10

Eff. SRH-10

Storm Motion168° @ 11 kt

0–1 km EHI-0.1

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index36.7

Thermo & Levels

PWAT1.82 in

0–3 km LR7.0 °C/km

700–500 LR6.0 °C/km

Total Totals48.8

LCL908 hPa

LFC880 hPa

EL171 hPa

Freezing Lvl12,946 ft

Polk County, Iowa, United States

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