Frost Advisory — Greene, IL, Macoupin, IL, Montgomery, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Audrain, MO, Lincoln, MO 9:00 AM

Jersey County, Illinois, United States

Last updated: 7:30 PM CDT  ·  Refresh
11°C
Feels like 4°
Partly Cloudy
▲ 12°  /  ▼ 2°
Wind
16 mph NNW
Humidity
78%
Dew Point
8°
Pressure
29.70 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
42%
Sunrise
7:11 AM
Sunset
6:21 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jersey County is currently partly cloudy at 10°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:11AM · Sunset: 6:21PM.

Alerts

Frost Advisory
Greene, IL, Macoupin, IL, Montgomery, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Audrain, MO, Lincoln, MO
Expires 9:00 AM
24 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
11°
8%
8 PM
11°
8%
9 PM
9°
3%
10 PM
9°
3%
11 PM
8°
3%
12 AM
8°
3%
1 AM
7°
3%
2 AM
7°
3%
3 AM
6°
3%
4 AM
5°
3%
5 AM
2°
3%
6 AM
2°
3%
7 AM
2°
3%
8 AM
3°
3%
9 AM
6°
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
14°
3%
5 PM
12°
3%
6 PM
12°
3%
7-Day Forecast
Tonight
12° 2°
Partly Cloudy.
Sat
15° 2°
Clear.
Sun
20° 3°
Clear.
Mon
23° 4°
Clear.
Tue
24° 8°
Clear.
Wed
26° 9°
Clear.
Thu
27° 10°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 11° Partly Cloudy 8% 16 mph NNW 78%
8 PM 11° Mostly Clear 8% 14 mph NNW 79%
9 PM 9° Mostly Clear 3% 13 mph NNW 78%
10 PM 9° Mostly Clear 3% 12 mph NNW 78%
11 PM 8° Mostly Clear 3% 12 mph NNW 79%
12 AM 8° Mostly Clear 3% 11 mph NNW 79%
1 AM 7° Mostly Clear 3% 10 mph N 80%
2 AM 7° Clear 3% 10 mph N 82%
3 AM 6° Clear 3% 9 mph N 84%
4 AM 5° Clear 3% 8 mph N 86%
5 AM 2° Clear 3% 7 mph N 87%
6 AM 2° Mostly Clear 3% 6 mph NNW 88%
7 AM 2° Mostly Clear 3% 6 mph N 86%
8 AM 3° Clear 3% 6 mph N 78%
9 AM 6° Clear 3% 7 mph NNE 70%
10 AM 8° Clear 3% 6 mph NNE 64%
11 AM 9° Clear 3% 5 mph NE 57%
12 PM 11° Clear 3% 5 mph NE 50%
1 PM 13° Clear 3% 4 mph NE 45%
2 PM 14° Clear 3% 3 mph NE 42%
3 PM 14° Clear 3% 3 mph NE 40%
4 PM 14° Clear 3% 3 mph NE 41%
5 PM 12° Clear 3% 3 mph NE 43%
6 PM 12° Clear 3% 2 mph ENE 46%
15-Day Forecast
Today
10/16
Partly Cloudy
8%
2°
12°
Sat
10/17
Clear
3%
2°
15°
Sun
10/18
Clear
3%
3°
20°
Mon
10/19
Clear
3%
4°
23°
Tue
10/20
Clear
3%
8°
24°
Wed
10/21
Clear
3%
9°
26°
Thu
10/22
Clear
3%
10°
27°
Fri
10/23
Clear
8%
11°
28°
Sat
10/24
Clear
44%
12°
28°
Sun
10/25
Clear
44%
11°
23°
Mon
10/26
Clear
60%
9°
23°
Tue
10/27
Clear
60%
8°
21°
Wed
10/28
Clear
60%
8°
21°
Thu
10/29
Drizzle
60%
9°
22°
Fri
10/30
Drizzle
60%
9°
20°
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
20 AQI 3.6 µg/m³
O3
Ground-level ozone
Dominant
24 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 24 Good 24 20
Sun 31 Good 31 16
Mon 39 Good 32 39
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 Fri Oct 16, 23:00'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
SBCAPE13 J/kg
MLCAPE52 J/kg
MUCAPE99 J/kg
SBCIN-30 J/kg
MLCIN-4 J/kg
Lifted Index7.1
Kinematics
0–6 km Shear55 kt
0–1 km Shear20 kt
Eff. Shear—
0–1 km SRH83
0–3 km SRH72
Eff. SRH—
Storm Motion19° @ 34 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index17.9
Thermo & Levels
PWAT0.65 in
0–3 km LR6.2 °C/km
700–500 LR5.3 °C/km
Total Totals42.7
LCL962 hPa
LFC881 hPa
EL749 hPa
Freezing Lvl4,885 ft