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: 11:23 PM CDT  ·  Refresh
6°C
Feels like 3°
Clear
▲ 11°  /  ▼ 2°
Wind
7 mph NNW
Humidity
77%
Dew Point
2°
Pressure
29.68 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
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 clear at 5°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
6°
3%
12 AM
5°
3%
1 AM
4°
3%
2 AM
4°
3%
3 AM
3°
3%
4 AM
3°
3%
5 AM
2°
3%
6 AM
2°
3%
7 AM
2°
3%
8 AM
3°
3%
9 AM
7°
3%
10 AM
9°
3%
11 AM
10°
3%
12 PM
12°
3%
1 PM
14°
3%
2 PM
15°
3%
3 PM
16°
3%
4 PM
15°
3%
5 PM
14°
3%
6 PM
11°
3%
7 PM
11°
3%
8 PM
10°
3%
9 PM
9°
3%
10 PM
9°
3%
7-Day Forecast
Tonight
11° 2°
Clear.
Sat
16° 2°
Clear.
Sun
20° 4°
Clear.
Mon
22° 5°
Clear.
Tue
24° 8°
Clear.
Wed
25° 11°
Clear.
Thu
27° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 6° Clear 3% 7 mph NNW 77%
12 AM 5° Clear 3% 7 mph NNW 75%
1 AM 4° Clear 3% 6 mph NNW 76%
2 AM 4° Clear 3% 6 mph N 78%
3 AM 3° Clear 3% 5 mph N 80%
4 AM 3° Clear 3% 4 mph NNW 82%
5 AM 2° Clear 3% 3 mph NNW 82%
6 AM 2° Clear 3% 2 mph NW 82%
7 AM 2° Clear 3% 2 mph W 80%
8 AM 3° Clear 3% 2 mph SW 75%
9 AM 7° Clear 3% 3 mph S 68%
10 AM 9° Clear 3% 5 mph S 60%
11 AM 10° Clear 3% 6 mph SSW 53%
12 PM 12° Clear 3% 7 mph SSW 47%
1 PM 14° Clear 3% 7 mph SSW 44%
2 PM 15° Clear 3% 8 mph SSW 43%
3 PM 16° Clear 3% 8 mph SSW 43%
4 PM 15° Clear 3% 9 mph SSW 44%
5 PM 14° Clear 3% 8 mph SSW 50%
6 PM 11° Clear 3% 8 mph SSW 56%
7 PM 11° Clear 3% 8 mph S 59%
8 PM 10° Clear 3% 8 mph S 62%
9 PM 9° Clear 3% 8 mph S 64%
10 PM 9° Clear 3% 8 mph S 65%
15-Day Forecast
Today
10/16
Clear
3%
2°
11°
Sat
10/17
Clear
3%
2°
16°
Sun
10/18
Clear
3%
4°
20°
Mon
10/19
Clear
3%
5°
22°
Tue
10/20
Clear
8%
8°
24°
Wed
10/21
Clear
8%
11°
25°
Thu
10/22
Clear
8%
13°
27°
Fri
10/23
Clear
3%
14°
27°
Sat
10/24
Drizzle
44%
13°
28°
Sun
10/25
Rain
68%
10°
21°
Mon
10/26
Clear
60%
8°
21°
Tue
10/27
Clear
60%
8°
19°
Wed
10/28
Drizzle
60%
8°
19°
Thu
10/29
Drizzle
60%
8°
20°
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
Today 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 Sat Oct 17, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE5 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index20.8
Kinematics
0–6 km Shear48 kt
0–1 km Shear17 kt
Eff. Shear—
0–1 km SRH45
0–3 km SRH104
Eff. SRH—
Storm Motion27° @ 34 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-19.5
Thermo & Levels
PWAT0.33 in
0–3 km LR2.6 °C/km
700–500 LR5.2 °C/km
Total Totals22.3
LCL952 hPa
LFC—
EL—
Freezing Lvl3,786 ft