Heat Advisory — Iowa, IA, Johnson, IA, Cedar, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Louisa, IA, Jefferson, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Rock Island, IL, Henry, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO 7:00 PM

Jefferson County, Iowa, United States

Last updated: 12:07 AM CDT  ·  Refresh
26°C
Feels like 26°
Partly Cloudy
▲ 36°  /  ▼ 22°
Wind
12 mph S
Humidity
60%
Dew Point
19°
Pressure
29.09 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
36%
Sunrise
6:33 AM
Sunset
7:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently partly cloudy at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2113 J/kg) — isolated convective development possible. Sunrise: 6:33AM · Sunset: 7:41PM.

Alerts

Heat Advisory
Iowa, IA, Johnson, IA, Cedar, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Louisa, IA, Jefferson, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Rock Island, IL, Henry, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO
Expires 7:00 PM
59 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
19%
1 AM
27°
23%
2 AM
26°
21%
3 AM
25°
21%
4 AM
24°
19%
5 AM
24°
22%
6 AM
23°
26%
7 AM
23°
15%
8 AM
24°
15%
9 AM
26°
15%
10 AM
27°
7%
11 AM
28°
8%
12 PM
30°
5%
1 PM
32°
3%
2 PM
33°
5%
3 PM
34°
17%
4 PM
34°
26%
5 PM
33°
31%
6 PM
33°
41%
7 PM
31°
41%
8 PM
30°
41%
9 PM
29°
37%
10 PM
28°
37%
11 PM
27°
41%
7-Day Forecast
Today
36° 22°
Partly Cloudy with a 41% chance of rain.
Tue
39° 22°
Clear with a 34% chance of rain.
Wed
39° 23°
Clear with a 21% chance of rain.
Thu
39° 21°
Clear.
Fri
39° 24°
Mostly Clear with a 29% chance of rain.
Sat
38° 23°
Clear.
Sun
35° 21°
Partly Cloudy with a 25% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 26° Partly Cloudy 19% 12 mph S 60%
1 AM 27° Partly Cloudy 23% 12 mph S 56%
2 AM 26° Mostly Cloudy 21% 12 mph S 60%
3 AM 25° Mostly Cloudy 21% 11 mph S 64%
4 AM 24° Partly Cloudy 19% 11 mph SSW 68%
5 AM 24° Partly Cloudy 22% 10 mph SSW 69%
6 AM 23° Partly Cloudy 26% 11 mph SSW 71%
7 AM 23° Mostly Clear 15% 11 mph SSW 71%
8 AM 24° Partly Cloudy 15% 12 mph SSW 67%
9 AM 26° Partly Cloudy 15% 14 mph SW 63%
10 AM 27° Partly Cloudy 7% 14 mph SW 59%
11 AM 28° Partly Cloudy 8% 14 mph SW 53%
12 PM 30° Partly Cloudy 5% 12 mph SW 47%
1 PM 32° Partly Cloudy 3% 11 mph SW 42%
2 PM 33° Mostly Clear 5% 10 mph SW 41%
3 PM 34° Partly Cloudy 17% 10 mph SW 40%
4 PM 34° Partly Cloudy 26% 10 mph SW 40%
5 PM 33° Partly Cloudy 31% 10 mph SW 47%
6 PM 33° Partly Cloudy 41% 10 mph WSW 54%
7 PM 31° Partly Cloudy 41% 10 mph WSW 59%
8 PM 30° Partly Cloudy 41% 8 mph SW 63%
9 PM 29° Partly Cloudy 37% 6 mph SSW 66%
10 PM 28° Partly Cloudy 37% 7 mph SSW 69%
11 PM 27° Partly Cloudy 41% 8 mph SSW 67%
15-Day Forecast
Today
8/31
Partly Cloudy
41%
22°
36°
Tue
9/1
Clear
34%
22°
39°
Wed
9/2
Clear
21%
23°
39°
Thu
9/3
Clear
18%
21°
39°
Fri
9/4
Mostly Clear
29%
24°
39°
Sat
9/5
Clear
17%
23°
38°
Sun
9/6
Partly Cloudy
25%
21°
35°
Mon
9/7
Rain
53%
19°
37°
Tue
9/8
Mostly Clear
35%
17°
31°
Wed
9/9
Partly Cloudy
32%
17°
32°
Thu
9/10
Drizzle
60%
18°
32°
Fri
9/11
Drizzle
60%
18°
32°
Sat
9/12
Drizzle
60%
18°
32°
Sun
9/13
Drizzle
60%
18°
33°
Mon
9/14
Drizzle
60%
17°
31°
59
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
59 AQI 13.5 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 59 Moderate 38 59
Tue 59 Moderate 36 59
Wed 59 Moderate 38 59
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. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Mon Aug 31, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE58 J/kg
MLCAPE61 J/kg
MUCAPE571 J/kg
SBCIN-706 J/kg
MLCIN-509 J/kg
Lifted Index-1.2
Kinematics
0–6 km Shear31 kt
0–1 km Shear28 kt
Eff. Shear—
0–1 km SRH318
0–3 km SRH383
Eff. SRH—
Storm Motion289° @ 17 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)—
Supercell—
K-Index26.2
Thermo & Levels
PWAT1.62 in
0–3 km LR4.6 °C/km
700–500 LR7.0 °C/km
Total Totals44.3
LCL892 hPa
LFC561 hPa
EL426 hPa
Freezing Lvl15,600 ft