Jefferson County, Iowa, United States

Last updated: 5:57 PM CDT · Refresh

32°C

Feels like 38°

Mostly Clear

▲ 33° / ▼ 22°

Wind

13 mph SSW

Humidity

65%

Dew Point

23°

Pressure

29.17 inHg

Visibility

10 mi

UV Index

5.8

Cloud Cover

27%

Sunrise

5:40 AM

Sunset

8:43 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3482 J/kg) — isolated convective development possible. Sunrise: 5:40AM · Sunset: 8:43PM.

45 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

32°

12%

6 PM

33°

30%

7 PM

31°

30%

8 PM

29°

42%

9 PM

27°

41%

10 PM

27°

40%

11 PM

26°

23%

12 AM

26°

12%

1 AM

25°

12%

2 AM

24°

13%

3 AM

23°

13%

4 AM

23°

30%

5 AM

22°

34%

6 AM

23°

34%

7 AM

24°

40%

8 AM

26°

44%

9 AM

27°

35%

10 AM

28°

35%

11 AM

29°

32%

12 PM

31°

21%

1 PM

31°

35%

2 PM

32°

35%

3 PM

32°

36%

4 PM

32°

26%

7-Day Forecast

Today

33° 22°

Mostly Clear with a 42% chance of rain.

Fri

33° 22°

Partly Cloudy with a 44% chance of rain.

Sat

31° 21°

Mostly Cloudy with a 55% chance of rain.

Sun

29° 19°

Partly Cloudy with a 42% chance of rain.

Mon

28° 18°

Mostly Clear.

Tue

29° 18°

Rain, 70% chance.

Wed

31° 19°

Rain, 82% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 32° Mostly Clear 12% 13 mph SSW 65%

6 PM 33° Clear 30% 12 mph SSW 68%

7 PM 31° Partly Cloudy 30% 8 mph SSW 73%

8 PM 29° Mostly Clear 42% 7 mph SSW 76%

9 PM 27° Partly Cloudy 41% 8 mph SW 79%

10 PM 27° Partly Cloudy 40% 7 mph S 82%

11 PM 26° Partly Cloudy 23% 7 mph S 85%

12 AM 26° Partly Cloudy 12% 8 mph S 87%

1 AM 25° Partly Cloudy 12% 8 mph S 88%

2 AM 24° Partly Cloudy 13% 8 mph SSE 90%

3 AM 23° Partly Cloudy 13% 7 mph S 91%

4 AM 23° Partly Cloudy 30% 6 mph S 92%

5 AM 22° Partly Cloudy 34% 6 mph S 92%

6 AM 23° Partly Cloudy 34% 7 mph S 91%

7 AM 24° Mostly Cloudy 40% 8 mph SW 87%

8 AM 26° Partly Cloudy 44% 9 mph SW 83%

9 AM 27° Mostly Cloudy 35% 10 mph WSW 79%

10 AM 28° Mostly Cloudy 35% 9 mph SW 75%

11 AM 29° Mostly Cloudy 32% 8 mph SW 70%

12 PM 31° Mostly Cloudy 21% 10 mph SW 67%

1 PM 31° Mostly Cloudy 35% 8 mph SSW 66%

2 PM 32° Partly Cloudy 35% 8 mph SSW 65%

3 PM 32° Partly Cloudy 36% 8 mph SSW 64%

4 PM 32° Partly Cloudy 26% 8 mph SSW 66%

15-Day Forecast

Today

7/2

Mostly Clear

42%

22°

33°

Fri

7/3

Partly Cloudy

44%

22°

33°

Sat

7/4

Mostly Cloudy

55%

21°

31°

Sun

7/5

Partly Cloudy

42%

19°

29°

Mon

7/6

Mostly Clear

16%

18°

28°

Tue

7/7

Rain

70%

18°

29°

Wed

7/8

Rain

82%

19°

31°

Thu

7/9

Drizzle

63%

20°

31°

Fri

7/10

Drizzle

44%

19°

29°

Sat

7/11

Rain

68%

18°

28°

Sun

7/12

Drizzle

60%

18°

27°

Mon

7/13

Drizzle

60%

18°

28°

Tue

7/14

Drizzle

60%

17°

27°

Wed

7/15

Drizzle

60%

18°

28°

Thu

7/16

Drizzle

60%

19°

29°

Good

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

45 AQI 8.2 µg/m³

O₃

Ground-level ozone

31 AQI 34 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Fri 45 Good 31 45

Sat 41 Good 33 41

Sun 56 Moderate 31 56

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 Thu Jul 2, 21:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE3359 J/kg

MLCAPE2685 J/kg

MUCAPE3359 J/kg

SBCIN-44 J/kg

MLCIN0 J/kg

Lifted Index-7.8

Kinematics

0–6 km Shear33 kt

0–1 km Shear9 kt

Eff. Shear34 kt

0–1 km SRH13

0–3 km SRH-40

Eff. SRH-40

Storm Motion210° @ 35 kt

0–1 km EHI0.3

Composite Parameters

Sig. Tornado0.1

STP (eff)0.0

Supercell0.0

K-Index33.1

Thermo & Levels

PWAT1.76 in

0–3 km LR7.4 °C/km

700–500 LR6.2 °C/km

Total Totals49.9

LCL868 hPa

LFC828 hPa

EL146 hPa

Freezing Lvl15,223 ft

Jefferson County, Iowa, United States

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