Linn County, Iowa, United States

Last updated: 5:10 PM CDT · Refresh

28°C

Feels like 30°

Mostly Clear

▲ 28° / ▼ 19°

Wind

5 mph N

Humidity

71%

Dew Point

22°

Pressure

29.08 inHg

Visibility

10 mi

UV Index

6.9

Cloud Cover

23%

Sunrise

5:36 AM

Sunset

8:45 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Linn County is currently mostly clear at 28°C. Precipitation is likely — peak probability 56% around 7 PM. Atmospheric instability is elevated (CAPE up to 2411 J/kg) — isolated convective development possible. Sunrise: 5:36AM · Sunset: 8:45PM.

45 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

28°

21%

6 PM

28°

37%

7 PM

28°

55%

8 PM

26°

47%

9 PM

24°

47%

10 PM

24°

30%

11 PM

23°

43%

12 AM

22°

49%

1 AM

22°

42%

2 AM

22°

28%

3 AM

22°

28%

4 AM

22°

28%

5 AM

20°

17%

6 AM

20°

21%

7 AM

21°

21%

8 AM

22°

24%

9 AM

22°

28%

10 AM

23°

28%

11 AM

23°

31%

12 PM

25°

35%

1 PM

25°

35%

2 PM

24°

35%

3 PM

24°

31%

4 PM

25°

20%

7-Day Forecast

Today

28° 19°

Partly Cloudy with a 47% chance of rain.

Sun

27° 20°

Mostly Cloudy with a 31% chance of rain.

Mon

27° 17°

Clear.

Tue

27° 17°

Mostly Clear.

Wed

27° 18°

Rain, 72% chance.

Thu

26° 18°

Rain, 64% chance.

Fri

24° 17°

Mostly Clear with a 31% chance of rain.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 28° Mostly Clear 21% 5 mph N 71%

6 PM 28° Partly Cloudy 37% 6 mph N 74%

7 PM 28° Mostly Cloudy 55% 6 mph NNE 79%

8 PM 26° Overcast 47% 4 mph NE 84%

9 PM 24° Overcast 47% 4 mph NE 88%

10 PM 24° Overcast 30% 3 mph ENE 90%

11 PM 23° Overcast 43% 4 mph NE 92%

12 AM 22° Rain 49% 4 mph NE 94%

1 AM 22° Overcast 42% 4 mph NE 94%

2 AM 22° Mostly Cloudy 28% 4 mph NE 95%

3 AM 22° Mostly Cloudy 28% 4 mph ENE 96%

4 AM 22° Mostly Cloudy 28% 5 mph NE 96%

5 AM 20° Overcast 17% 4 mph NE 96%

6 AM 20° Overcast 21% 5 mph ENE 96%

7 AM 21° Overcast 21% 6 mph ENE 95%

8 AM 22° Mostly Cloudy 24% 6 mph ENE 91%

9 AM 22° Mostly Cloudy 28% 6 mph ENE 87%

10 AM 23° Partly Cloudy 28% 6 mph ENE 84%

11 AM 23° Partly Cloudy 31% 6 mph ENE 82%

12 PM 25° Partly Cloudy 35% 6 mph ENE 80%

1 PM 25° Partly Cloudy 35% 6 mph ENE 78%

2 PM 24° Partly Cloudy 35% 5 mph ENE 78%

3 PM 24° Partly Cloudy 31% 6 mph NE 77%

4 PM 25° Partly Cloudy 20% 7 mph NNE 78%

15-Day Forecast

Today

7/4

Partly Cloudy

47%

19°

28°

Sun

7/5

Mostly Cloudy

31%

20°

27°

Mon

7/6

Clear

12%

17°

27°

Tue

7/7

Mostly Clear

17°

27°

Wed

7/8

Rain

72%

18°

27°

Thu

7/9

Rain

64%

18°

26°

Fri

7/10

Mostly Clear

31%

17°

24°

Sat

7/11

Mostly Clear

42%

17°

26°

Sun

7/12

Clear

44%

16°

24°

Mon

7/13

Mostly Cloudy

44%

16°

27°

Tue

7/14

Drizzle

60%

17°

26°

Wed

7/15

Drizzle

60%

17°

26°

Thu

7/16

Drizzle

60%

16°

24°

Fri

7/17

Drizzle

60%

16°

24°

Sat

7/18

Drizzle

60%

17°

26°

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

39 AQI 7.0 µg/m³

O₃

Ground-level ozone

Dominant

45 AQI 50 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Sun 45 Good 45 39

Mon 39 Good 37 39

Tue 36 Good 36 36

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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE2244 J/kg

MLCAPE1629 J/kg

MUCAPE2244 J/kg

SBCIN-4 J/kg

MLCIN0 J/kg

Lifted Index-6.7

Kinematics

0–6 km Shear13 kt

0–1 km Shear5 kt

Eff. Shear14 kt

0–1 km SRH-24

0–3 km SRH-56

Eff. SRH-56

Storm Motion249° @ 13 kt

0–1 km EHI-0.3

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index34.2

Thermo & Levels

PWAT1.64 in

0–3 km LR7.1 °C/km

700–500 LR5.8 °C/km

Total Totals48.0

LCL901 hPa

LFC887 hPa

EL178 hPa

Freezing Lvl13,799 ft

Linn County, Iowa, United States

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