Freeze Warning — Buchanan, IA, Delaware, IA, Dubuque, IA, Benton, IA, Linn, IA, Jones, IA, Jackson, IA, Iowa, IA, Johnson, IA, Cedar, IA, Clinton, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Jefferson, IA, Jo Daviess, IL, Stephenson, IL, Carroll, IL, Whiteside, IL, Rock Island, IL 9:00 AM

Jefferson County, Iowa, United States

Last updated: 6:43 PM CDT  ·  Refresh
9°C
Feels like 6°
Partly Cloudy
▲ 11°  /  ▼ 1°
Wind
13 mph NNW
Humidity
64%
Dew Point
3°
Pressure
29.60 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
44%
Sunrise
7:19 AM
Sunset
6:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently partly cloudy at 9°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:19AM · Sunset: 6:25PM.

Alerts

Freeze Warning
Buchanan, IA, Delaware, IA, Dubuque, IA, Benton, IA, Linn, IA, Jones, IA, Jackson, IA, Iowa, IA, Johnson, IA, Cedar, IA, Clinton, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Jefferson, IA, Jo Daviess, IL, Stephenson, IL, Carroll, IL, Whiteside, IL, Rock Island, IL
Expires 9:00 AM
24 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
8%
7 PM
8°
8%
8 PM
8°
8%
9 PM
7°
3%
10 PM
6°
3%
11 PM
6°
3%
12 AM
5°
3%
1 AM
4°
3%
2 AM
3°
3%
3 AM
3°
3%
4 AM
3°
3%
5 AM
1°
3%
6 AM
1°
3%
7 AM
2°
3%
8 AM
4°
3%
9 AM
7°
3%
10 AM
8°
3%
11 AM
9°
3%
12 PM
11°
3%
1 PM
13°
3%
2 PM
14°
3%
3 PM
14°
3%
4 PM
13°
3%
5 PM
10°
3%
7-Day Forecast
Tonight
11° 1°
Partly Cloudy.
Sat
15° 1°
Clear.
Sun
20° 3°
Clear.
Mon
22° 5°
Clear.
Tue
23° 9°
Clear.
Wed
25° 11°
Clear.
Thu
27° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 9° Partly Cloudy 8% 13 mph NNW 64%
7 PM 8° Mostly Clear 8% 10 mph NNW 66%
8 PM 8° Mostly Clear 8% 10 mph NNW 70%
9 PM 7° Clear 3% 9 mph NNW 74%
10 PM 6° Clear 3% 8 mph NNW 77%
11 PM 6° Clear 3% 7 mph NNW 80%
12 AM 5° Clear 3% 6 mph N 82%
1 AM 4° Clear 3% 6 mph N 84%
2 AM 3° Clear 3% 5 mph N 84%
3 AM 3° Clear 3% 5 mph N 85%
4 AM 3° Clear 3% 4 mph NNW 85%
5 AM 1° Mostly Clear 3% 3 mph NNW 85%
6 AM 1° Mostly Clear 3% 2 mph NW 86%
7 AM 2° Mostly Clear 3% 2 mph WSW 82%
8 AM 4° Mostly Clear 3% 2 mph SSW 75%
9 AM 7° Clear 3% 4 mph SSW 66%
10 AM 8° Clear 3% 5 mph SSW 58%
11 AM 9° Clear 3% 5 mph SSW 51%
12 PM 11° Clear 3% 6 mph SSW 45%
1 PM 13° Clear 3% 6 mph SSW 43%
2 PM 14° Clear 3% 7 mph SSW 42%
3 PM 14° Clear 3% 7 mph SSW 42%
4 PM 13° Clear 3% 7 mph SSW 45%
5 PM 10° Clear 3% 7 mph SSW 50%
15-Day Forecast
Today
10/16
Partly Cloudy
8%
1°
11°
Sat
10/17
Clear
3%
1°
15°
Sun
10/18
Clear
3%
3°
20°
Mon
10/19
Clear
3%
5°
22°
Tue
10/20
Clear
3%
9°
23°
Wed
10/21
Clear
3%
11°
25°
Thu
10/22
Clear
8%
13°
27°
Fri
10/23
Clear
17%
14°
27°
Sat
10/24
Clear
44%
12°
27°
Sun
10/25
Clear
68%
9°
20°
Mon
10/26
Drizzle
64%
8°
21°
Tue
10/27
Clear
60%
7°
18°
Wed
10/28
Drizzle
60%
8°
18°
Thu
10/29
Drizzle
60%
8°
19°
Fri
10/30
Drizzle
60%
8°
19°
24
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
PM2.5
Fine particulate matter
13 AQI 2.4 µg/m³
O3
Ground-level ozone
Dominant
24 AQI 26 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 24 Good 24 13
Sun 26 Good 26 5
Mon 28 Good 28 19
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE1 J/kg
MUCAPE3 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index14.4
Kinematics
0–6 km Shear52 kt
0–1 km Shear20 kt
Eff. Shear—
0–1 km SRH117
0–3 km SRH109
Eff. SRH—
Storm Motion24° @ 39 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-3.9
Thermo & Levels
PWAT0.39 in
0–3 km LR5.7 °C/km
700–500 LR4.1 °C/km
Total Totals31.4
LCL917 hPa
LFC—
EL—
Freezing Lvl3,894 ft