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

Greene County, Illinois, United States

Last updated: 8:15 PM CDT  ·  Refresh
10°C
Feels like 5°
Partly Cloudy
▲ 12°  /  ▼ 2°
Wind
14 mph NNW
Humidity
78%
Dew Point
7°
Pressure
29.79 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
50%
Sunrise
7:11 AM
Sunset
6:20 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Greene County is currently partly cloudy at 10°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:11AM · Sunset: 6:20PM.

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
23 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
10°
12%
9 PM
10°
6%
10 PM
9°
6%
11 PM
8°
6%
12 AM
8°
4%
1 AM
7°
3%
2 AM
7°
3%
3 AM
6°
3%
4 AM
5°
3%
5 AM
3°
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
13°
3%
3 PM
14°
3%
4 PM
14°
3%
5 PM
13°
3%
6 PM
12°
3%
7 PM
11°
3%
7-Day Forecast
Tonight
12° 2°
Partly Cloudy.
Sat
15° 2°
Clear.
Sun
20° 3°
Clear.
Mon
23° 4°
Clear.
Tue
25° 7°
Partly Cloudy.
Wed
26° 9°
Mostly Clear.
Thu
28° 10°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 10° Partly Cloudy 12% 14 mph NNW 78%
9 PM 10° Partly Cloudy 6% 12 mph NNW 78%
10 PM 9° Mostly Clear 6% 12 mph NNW 78%
11 PM 8° Mostly Clear 6% 12 mph NNW 78%
12 AM 8° Mostly Clear 4% 11 mph NNW 79%
1 AM 7° Clear 3% 10 mph NNW 80%
2 AM 7° Clear 3% 9 mph N 82%
3 AM 6° Clear 3% 8 mph N 84%
4 AM 5° Clear 3% 7 mph N 86%
5 AM 3° Clear 3% 6 mph NNW 87%
6 AM 2° Mostly Clear 3% 6 mph NNW 88%
7 AM 2° Mostly Clear 3% 5 mph NNW 88%
8 AM 3° Mostly Clear 3% 5 mph N 80%
9 AM 6° Clear 3% 6 mph NNE 71%
10 AM 8° Clear 3% 5 mph NNE 63%
11 AM 9° Clear 3% 4 mph NE 56%
12 PM 11° Clear 3% 3 mph NE 49%
1 PM 13° Clear 3% 2 mph ENE 43%
2 PM 13° Clear 3% 2 mph ENE 41%
3 PM 14° Clear 3% 2 mph ENE 38%
4 PM 14° Clear 3% 2 mph E 38%
5 PM 13° Clear 3% 2 mph ESE 40%
6 PM 12° Clear 3% 2 mph ESE 43%
7 PM 11° Clear 3% 2 mph ESE 45%
15-Day Forecast
Today
10/16
Partly Cloudy
12%
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
Partly Cloudy
3%
7°
25°
Wed
10/21
Mostly Clear
3%
9°
26°
Thu
10/22
Clear
3%
10°
28°
Fri
10/23
Clear
3%
11°
28°
Sat
10/24
Mostly Cloudy
3%
11°
28°
Sun
10/25
Partly Cloudy
35%
11°
24°
Mon
10/26
Drizzle
60%
9°
22°
Tue
10/27
Drizzle
60%
8°
21°
Wed
10/28
Drizzle
60%
8°
20°
Thu
10/29
Drizzle
60%
9°
21°
Fri
10/30
Drizzle
60%
10°
21°
23
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
19 AQI 3.6 µg/m³
O3
Ground-level ozone
Dominant
23 AQI 25 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 23 Good 23 19
Sun 30 Good 30 10
Mon 30 Good 30 30
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
SBCAPE5 J/kg
MLCAPE23 J/kg
MUCAPE53 J/kg
SBCIN-58 J/kg
MLCIN-19 J/kg
Lifted Index11.4
Kinematics
0–6 km Shear58 kt
0–1 km Shear25 kt
Eff. Shear—
0–1 km SRH133
0–3 km SRH131
Eff. SRH—
Storm Motion23° @ 38 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index11.4
Thermo & Levels
PWAT0.58 in
0–3 km LR6.1 °C/km
700–500 LR3.9 °C/km
Total Totals34.9
LCL964 hPa
LFC860 hPa
EL792 hPa
Freezing Lvl4,744 ft