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: 12:21 AM CDT  ·  Refresh
26°C
Feels like 26°
Partly Cloudy
▲ 36°  /  ▼ 22°
Wind
11 mph S
Humidity
61%
Dew Point
19°
Pressure
29.09 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
31%
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 2122 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
26°
18%
2 AM
26°
17%
3 AM
25°
17%
4 AM
24°
14%
5 AM
23°
17%
6 AM
23°
17%
7 AM
23°
26%
8 AM
24°
15%
9 AM
25°
18%
10 AM
27°
18%
11 AM
29°
18%
12 PM
31°
5%
1 PM
33°
3%
2 PM
33°
10%
3 PM
34°
17%
4 PM
34°
26%
5 PM
34°
29%
6 PM
32°
32%
7 PM
31°
32%
8 PM
30°
32%
9 PM
28°
29%
10 PM
28°
29%
11 PM
28°
30%
7-Day Forecast
Today
36° 22°
Partly Cloudy with a 32% chance of rain.
Tue
39° 22°
Clear with a 26% chance of rain.
Wed
39° 22°
Clear with a 21% chance of rain.
Thu
38° 19°
Clear with a 37% chance of rain.
Fri
39° 22°
Mostly Clear with a 34% chance of rain.
Sat
36° 21°
Clear with a 57% chance of rain.
Sun
33° 19°
Partly Cloudy with a 47% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 26° Partly Cloudy 19% 11 mph S 61%
1 AM 26° Partly Cloudy 18% 12 mph S 57%
2 AM 26° Partly Cloudy 17% 12 mph S 61%
3 AM 25° Partly Cloudy 17% 11 mph S 64%
4 AM 24° Mostly Clear 14% 11 mph SSW 67%
5 AM 23° Partly Cloudy 17% 11 mph SSW 69%
6 AM 23° Partly Cloudy 17% 11 mph SSW 72%
7 AM 23° Mostly Clear 26% 11 mph SSW 71%
8 AM 24° Partly Cloudy 15% 12 mph SSW 67%
9 AM 25° Partly Cloudy 18% 14 mph SW 62%
10 AM 27° Partly Cloudy 18% 14 mph SW 58%
11 AM 29° Partly Cloudy 18% 13 mph SW 53%
12 PM 31° Partly Cloudy 5% 12 mph SW 47%
1 PM 33° Partly Cloudy 3% 11 mph SW 43%
2 PM 33° Partly Cloudy 10% 10 mph SW 41%
3 PM 34° Partly Cloudy 17% 10 mph SW 40%
4 PM 34° Partly Cloudy 26% 10 mph SW 42%
5 PM 34° Partly Cloudy 29% 10 mph WSW 49%
6 PM 32° Partly Cloudy 32% 11 mph WSW 55%
7 PM 31° Partly Cloudy 32% 10 mph WSW 61%
8 PM 30° Partly Cloudy 32% 8 mph WSW 64%
9 PM 28° Partly Cloudy 29% 6 mph SW 68%
10 PM 28° Partly Cloudy 29% 7 mph SSW 71%
11 PM 28° Partly Cloudy 30% 7 mph SSW 70%
15-Day Forecast
Today
8/31
Partly Cloudy
32%
22°
36°
Tue
9/1
Clear
26%
22°
39°
Wed
9/2
Clear
21%
22°
39°
Thu
9/3
Clear
37%
19°
38°
Fri
9/4
Mostly Clear
34%
22°
39°
Sat
9/5
Clear
57%
21°
36°
Sun
9/6
Partly Cloudy
47%
19°
33°
Mon
9/7
Partly Cloudy
34%
18°
35°
Tue
9/8
Mostly Clear
35%
21°
39°
Wed
9/9
Partly Cloudy
32%
21°
41°
Thu
9/10
Drizzle
60%
18°
41°
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, 04:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE32 J/kg
MLCAPE20 J/kg
MUCAPE212 J/kg
SBCIN-756 J/kg
MLCIN-584 J/kg
Lifted Index-0.7
Kinematics
0–6 km Shear28 kt
0–1 km Shear29 kt
Eff. Shear—
0–1 km SRH327
0–3 km SRH381
Eff. SRH—
Storm Motion288° @ 16 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index27.9
Thermo & Levels
PWAT1.65 in
0–3 km LR4.6 °C/km
700–500 LR7.0 °C/km
Total Totals43.3
LCL886 hPa
LFC549 hPa
EL436 hPa
Freezing Lvl15,581 ft