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: 7:28 PM CDT  ·  Refresh
10°C
Feels like 4°
Partly Cloudy
▲ 12°  /  ▼ 2°
Wind
16 mph NNW
Humidity
78%
Dew Point
7°
Pressure
29.77 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
42%
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°
45%
8 PM
11°
8%
9 PM
9°
3%
10 PM
9°
3%
11 PM
8°
3%
12 AM
7°
3%
1 AM
7°
3%
2 AM
6°
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 with a 45% chance of rain.
Sat
15° 2°
Clear.
Sun
20° 3°
Clear.
Mon
23° 4°
Clear.
Tue
24° 7°
Clear.
Wed
26° 9°
Clear.
Thu
27° 10°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 10° Partly Cloudy 45% 16 mph NNW 78%
8 PM 11° Mostly Clear 8% 13 mph NNW 78%
9 PM 9° Mostly Clear 3% 12 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 7° Mostly Clear 3% 11 mph N 79%
1 AM 7° Clear 3% 10 mph N 81%
2 AM 6° Clear 3% 9 mph N 83%
3 AM 6° Clear 3% 8 mph N 85%
4 AM 5° Clear 3% 7 mph N 86%
5 AM 2° Mostly Clear 3% 6 mph NNW 88%
6 AM 2° Mostly Clear 3% 6 mph NNW 89%
7 AM 2° Mostly Clear 3% 5 mph NNW 86%
8 AM 3° Mostly Clear 3% 5 mph N 78%
9 AM 6° Clear 3% 6 mph NNE 69%
10 AM 8° Clear 3% 5 mph NNE 61%
11 AM 9° Clear 3% 4 mph NE 54%
12 PM 11° Clear 3% 3 mph NE 48%
1 PM 13° Clear 3% 3 mph ENE 43%
2 PM 14° Clear 3% 3 mph ENE 40%
3 PM 14° Clear 3% 2 mph ENE 38%
4 PM 14° Clear 3% 2 mph E 38%
5 PM 12° Clear 3% 2 mph E 41%
6 PM 12° Clear 3% 2 mph ESE 44%
15-Day Forecast
Today
10/16
Partly Cloudy
45%
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%
7°
24°
Wed
10/21
Clear
3%
9°
26°
Thu
10/22
Clear
3%
10°
27°
Fri
10/23
Clear
8%
12°
28°
Sat
10/24
Clear
44%
12°
28°
Sun
10/25
Drizzle
44%
10°
23°
Mon
10/26
Clear
25%
9°
23°
Tue
10/27
Drizzle
60%
8°
21°
Wed
10/28
Clear
60%
8°
20°
Thu
10/29
Drizzle
60%
9°
21°
Fri
10/30
Drizzle
60%
9°
19°
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 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE4 J/kg
MLCAPE32 J/kg
MUCAPE62 J/kg
SBCIN-43 J/kg
MLCIN-9 J/kg
Lifted Index8.9
Kinematics
0–6 km Shear58 kt
0–1 km Shear23 kt
Eff. Shear—
0–1 km SRH105
0–3 km SRH88
Eff. SRH—
Storm Motion20° @ 34 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index15.1
Thermo & Levels
PWAT0.63 in
0–3 km LR6.1 °C/km
700–500 LR4.8 °C/km
Total Totals39.7
LCL964 hPa
LFC876 hPa
EL807 hPa
Freezing Lvl4,882 ft