Linn County, Iowa, United States

Last updated: 11:15 AM CDT · Refresh

17°C

Feels like 14°

Overcast

▲ 19° / ▼ 13°

Wind

14 mph NE

Humidity

94%

Dew Point

16°

Pressure

29.09 inHg

Visibility

5 mi

UV Index

2.5

Cloud Cover

96%

Sunrise

6:51 AM

Sunset

7:06 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Linn County is currently overcast at 17°C. Precipitation is likely — peak probability 66% around 2 PM. Sunrise: 6:51AM · Sunset: 7:06PM.

22 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

17°

47%

12 PM

16°

60%

1 PM

17°

45%

2 PM

17°

66%

3 PM

17°

55%

4 PM

17°

48%

5 PM

17°

47%

6 PM

17°

29%

7 PM

17°

37%

8 PM

17°

41%

9 PM

17°

35%

10 PM

17°

38%

11 PM

16°

41%

12 AM

16°

54%

1 AM

15°

54%

2 AM

15°

54%

3 AM

15°

43%

4 AM

15°

46%

5 AM

14°

46%

6 AM

14°

46%

7 AM

14°

51%

8 AM

14°

47%

9 AM

13°

47%

10 AM

13°

37%

7-Day Forecast

Today

19° 13°

Overcast with a 66% chance of rain.

Mon

16° 12°

Overcast with a 56% chance of rain.

Tue

16° 9°

Mostly Cloudy with a 57% chance of rain.

Wed

18° 7°

Partly Cloudy.

Thu

19° 9°

Clear.

Fri

19° 12°

Clear.

Sat

19° 12°

Drizzle, 52% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 17° Overcast 47% 14 mph NE 94%

12 PM 16° Overcast 60% 15 mph ENE 91%

1 PM 17° Overcast 45% 15 mph ENE 91%

2 PM 17° Overcast 66% 15 mph ENE 91%

3 PM 17° Overcast 55% 14 mph ENE 90%

4 PM 17° Overcast 48% 14 mph ENE 90%

5 PM 17° Overcast 47% 13 mph ENE 89%

6 PM 17° Overcast 29% 13 mph ENE 88%

7 PM 17° Overcast 37% 13 mph ENE 86%

8 PM 17° Overcast 41% 13 mph ENE 86%

9 PM 17° Overcast 35% 14 mph ENE 85%

10 PM 17° Overcast 38% 14 mph ENE 84%

11 PM 16° Overcast 41% 14 mph ENE 85%

12 AM 16° Overcast 54% 14 mph ENE 86%

1 AM 15° Overcast 54% 14 mph ENE 86%

2 AM 15° Overcast 54% 13 mph ENE 86%

3 AM 15° Overcast 43% 12 mph ENE 85%

4 AM 15° Overcast 46% 12 mph ENE 85%

5 AM 14° Overcast 46% 12 mph ENE 85%

6 AM 14° Overcast 46% 12 mph ENE 85%

7 AM 14° Overcast 51% 12 mph ENE 85%

8 AM 14° Overcast 47% 12 mph ENE 86%

9 AM 13° Overcast 47% 12 mph ENE 88%

10 AM 13° Overcast 37% 12 mph ENE 88%

15-Day Forecast

Today

9/20

Overcast

66%

13°

19°

Mon

9/21

Overcast

56%

12°

16°

Tue

9/22

Mostly Cloudy

57%

9°

16°

Wed

9/23

Partly Cloudy

7°

18°

Thu

9/24

Clear

9°

19°

Fri

9/25

Clear

17%

12°

19°

Sat

9/26

Drizzle

52%

12°

19°

Sun

9/27

Drizzle

43%

11°

21°

Mon

9/28

Drizzle

44%

12°

22°

Tue

9/29

Drizzle

51%

13°

20°

Wed

9/30

Drizzle

60%

13°

21°

Thu

10/1

Drizzle

60%

12°

20°

Fri

10/2

Drizzle

60%

11°

19°

Sat

10/3

Drizzle

60%

10°

19°

Sun

10/4

Drizzle

60%

9°

18°

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

13 AQI 2.4 µg/m³

O₃

Ground-level ozone

Dominant

22 AQI 24 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Mon 22 Good 22 13

Tue 19 Good 19 6

Wed 16 Good 16 7

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 Sun Sep 20, 15:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE6 J/kg

MLCAPE13 J/kg

MUCAPE0 J/kg

SBCIN-0 J/kg

MLCIN0 J/kg

Lifted Index5.8

Kinematics

0–6 km Shear24 kt

0–1 km Shear9 kt

Eff. Shear—

0–1 km SRH41

0–3 km SRH114

Eff. SRH—

Storm Motion348° @ 18 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index31.2

Thermo & Levels

PWAT1.62 in

0–3 km LR3.7 °C/km

700–500 LR5.4 °C/km

Total Totals42.7

LCL969 hPa

LFC968 hPa

EL906 hPa

Freezing Lvl13,442 ft

Linn County, Iowa, United States

Alerts