Linn County, Iowa, United States

Last updated: 6:17 PM CDT · Refresh

27°C

Feels like 30°

Partly Cloudy

▲ 28° / ▼ 19°

Wind

6 mph NNW

Humidity

78%

Dew Point

22°

Pressure

29.05 inHg

Visibility

10 mi

UV Index

5.2

Cloud Cover

34%

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 partly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2232 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

27°

26%

7 PM

27°

34%

8 PM

26°

34%

9 PM

24°

34%

10 PM

23°

23%

11 PM

23°

28%

12 AM

22°

31%

1 AM

22°

2 AM

22°

11%

3 AM

21°

11%

4 AM

22°

19%

5 AM

20°

16%

6 AM

20°

15%

7 AM

21°

15%

8 AM

22°

15%

9 AM

23°

19%

10 AM

23°

11 AM

24°

14%

12 PM

24°

26%

1 PM

26°

25%

2 PM

26°

25%

3 PM

26°

21%

4 PM

26°

28%

5 PM

24°

31%

7-Day Forecast

Tonight

28° 19°

Partly Cloudy with a 34% chance of rain.

Sun

27° 20°

Mostly Cloudy with a 31% chance of rain.

Mon

27° 18°

Clear.

Tue

27° 17°

Mostly Clear with a 21% chance of rain.

Wed

27° 18°

Rain, 72% chance.

Thu

23° 18°

Rain, 71% chance.

Fri

25° 18°

Mostly Clear with a 52% chance of rain.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 27° Partly Cloudy 26% 6 mph NNW 78%

7 PM 27° Mostly Cloudy 34% 6 mph NNE 82%

8 PM 26° Mostly Cloudy 34% 4 mph NNE 85%

9 PM 24° Mostly Cloudy 34% 4 mph NNE 88%

10 PM 23° Overcast 23% 4 mph NNE 91%

11 PM 23° Overcast 28% 3 mph NNE 92%

12 AM 22° Overcast 31% 4 mph NNE 93%

1 AM 22° Overcast 8% 4 mph NE 94%

2 AM 22° Mostly Cloudy 11% 4 mph NNE 95%

3 AM 21° Mostly Cloudy 11% 4 mph NNE 96%

4 AM 22° Mostly Cloudy 19% 5 mph NNE 96%

5 AM 20° Overcast 16% 6 mph NE 96%

6 AM 20° Overcast 15% 6 mph NE 96%

7 AM 21° Overcast 15% 7 mph NE 94%

8 AM 22° Mostly Cloudy 15% 7 mph NE 90%

9 AM 23° Mostly Cloudy 19% 7 mph NE 85%

10 AM 23° Mostly Cloudy 9% 7 mph NE 81%

11 AM 24° Mostly Cloudy 14% 7 mph NE 78%

12 PM 24° Mostly Cloudy 26% 7 mph NE 75%

1 PM 26° Mostly Cloudy 25% 6 mph NE 73%

2 PM 26° Mostly Cloudy 25% 6 mph NE 73%

3 PM 26° Mostly Cloudy 21% 8 mph NNE 72%

4 PM 26° Mostly Cloudy 28% 8 mph NNE 73%

5 PM 24° Partly Cloudy 31% 7 mph NNE 74%

15-Day Forecast

Today

7/4

Partly Cloudy

34%

19°

28°

Sun

7/5

Mostly Cloudy

31%

20°

27°

Mon

7/6

Clear

12%

18°

27°

Tue

7/7

Mostly Clear

21%

17°

27°

Wed

7/8

Rain

72%

18°

27°

Thu

7/9

Rain

71%

18°

23°

Fri

7/10

Mostly Clear

52%

18°

25°

Sat

7/11

Mostly Clear

27%

16°

24°

Sun

7/12

Clear

43%

14°

24°

Mon

7/13

Mostly Cloudy

44%

16°

26°

Tue

7/14

Drizzle

51%

18°

28°

Wed

7/15

Drizzle

60%

17°

28°

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

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE2421 J/kg

MLCAPE1692 J/kg

MUCAPE2421 J/kg

SBCIN-12 J/kg

MLCIN0 J/kg

Lifted Index-7.2

Kinematics

0–6 km Shear17 kt

0–1 km Shear8 kt

Eff. Shear19 kt

0–1 km SRH-20

0–3 km SRH-29

Eff. SRH-29

Storm Motion233° @ 10 kt

0–1 km EHI-0.3

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index33.0

Thermo & Levels

PWAT1.62 in

0–3 km LR7.0 °C/km

700–500 LR5.9 °C/km

Total Totals49.5

LCL912 hPa

LFC895 hPa

EL172 hPa

Freezing Lvl13,665 ft

Linn County, Iowa, United States

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