Jo Daviess County, Illinois, United States

Last updated: 10:19 PM CDT  ·  Refresh
19°C
Feels like 21°
Clear
▲ 28°  /  ▼ 13°
Wind
5 mph WNW
Humidity
90%
Dew Point
18°
Pressure
29.12 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
4%
Sunrise
6:14 AM
Sunset
7:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jo Daviess County is currently clear at 19°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1062 J/kg) — isolated convective development possible. Sunrise: 6:14AM · Sunset: 7:52PM.

Alerts

No active alerts for this location.
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
3%
11 PM
19°
14%
12 AM
18°
14%
1 AM
17°
3%
2 AM
17°
3%
3 AM
16°
3%
4 AM
16°
3%
5 AM
13°
3%
6 AM
13°
3%
7 AM
14°
3%
8 AM
17°
3%
9 AM
21°
3%
10 AM
22°
5%
11 AM
23°
7%
12 PM
24°
15%
1 PM
27°
5%
2 PM
27°
5%
3 PM
27°
5%
4 PM
27°
3%
5 PM
26°
3%
6 PM
24°
3%
7 PM
24°
3%
8 PM
23°
3%
9 PM
21°
3%
7-Day Forecast
Tonight
28° 13°
Clear.
Sat
27° 13°
Clear.
Sun
25° 11°
Mostly Clear.
Mon
24° 11°
Partly Cloudy with a 44% chance of rain.
Tue
26° 13°
Rain, 64% chance.
Wed
29° 16°
Clear with a 64% chance of rain.
Thu
27° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 19° Clear 3% 5 mph WNW 90%
11 PM 19° Clear 14% 6 mph NW 89%
12 AM 18° Clear 14% 5 mph NW 89%
1 AM 17° Clear 3% 5 mph NW 89%
2 AM 17° Clear 3% 6 mph NW 90%
3 AM 16° Clear 3% 5 mph NW 91%
4 AM 16° Clear 3% 5 mph NW 91%
5 AM 13° Clear 3% 5 mph WNW 91%
6 AM 13° Clear 3% 4 mph WNW 91%
7 AM 14° Clear 3% 4 mph WNW 89%
8 AM 17° Clear 3% 6 mph WNW 84%
9 AM 21° Clear 3% 7 mph NW 77%
10 AM 22° Clear 5% 9 mph NW 71%
11 AM 23° Clear 7% 11 mph NW 66%
12 PM 24° Clear 15% 13 mph NW 61%
1 PM 27° Clear 5% 15 mph NW 57%
2 PM 27° Clear 5% 15 mph NW 54%
3 PM 27° Clear 5% 14 mph NW 53%
4 PM 27° Clear 3% 14 mph NW 54%
5 PM 26° Clear 3% 12 mph NW 59%
6 PM 24° Clear 3% 10 mph NW 63%
7 PM 24° Clear 3% 10 mph NW 63%
8 PM 23° Clear 3% 10 mph NW 66%
9 PM 21° Clear 3% 10 mph NW 69%
15-Day Forecast
Today
8/21
Clear
3%
13°
28°
Sat
8/22
Clear
5%
13°
27°
Sun
8/23
Mostly Clear
3%
11°
25°
Mon
8/24
Partly Cloudy
44%
11°
24°
Tue
8/25
Rain
64%
13°
26°
Wed
8/26
Clear
64%
16°
29°
Thu
8/27
Clear
17%
16°
27°
Fri
8/28
Clear
17%
16°
27°
Sat
8/29
Rain
68%
15°
28°
Sun
8/30
Drizzle
44%
18°
29°
Mon
8/31
Drizzle
60%
17°
29°
Tue
9/1
Drizzle
60%
18°
29°
Wed
9/2
Drizzle
60%
17°
28°
Thu
9/3
Drizzle
60%
16°
27°
Fri
9/4
Drizzle
60%
16°
28°
36
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
28 AQI 5.1 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 36 28
Sun 30 Good 30 21
Mon 28 Good 28 9
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 Sat Aug 22, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE124 J/kg
MLCAPE279 J/kg
MUCAPE550 J/kg
SBCIN-385 J/kg
MLCIN-198 J/kg
Lifted Index0.1
Kinematics
0–6 km Shear23 kt
0–1 km Shear17 kt
Eff. Shear13 kt
0–1 km SRH50
0–3 km SRH97
Eff. SRH71
Storm Motion350° @ 24 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index16.5
Thermo & Levels
PWAT1.03 in
0–3 km LR4.3 °C/km
700–500 LR6.5 °C/km
Total Totals45.3
LCL963 hPa
LFC480 hPa
EL270 hPa
Freezing Lvl13,094 ft