Freeze Warning — Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Clinton, IL, Marion, IL, Washington, IL, Randolph, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Madison, IL, St. Clair, IL, Monroe, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Boone, MO, Audrain, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 8:00 AM

Marion County, Illinois, United States

Last updated: 1:18 PM CDT  ·  Refresh
51°F
Feels like 42°
Partly Cloudy
▲ 53°  /  ▼ 33°
Wind
12 mph NNW
Humidity
56%
Dew Point
37°
Pressure
29.56 inHg
Visibility
10 mi
UV Index
5.5
Cloud Cover
55%
Sunrise
6:26 AM
Sunset
4:50 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Marion County is currently partly cloudy at 51°F. Dry conditions are expected through the next 24 hours. Sunrise: 6:26AM · Sunset: 4:50PM.

Alerts

Freeze Warning
Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Clinton, IL, Marion, IL, Washington, IL, Randolph, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Madison, IL, St. Clair, IL, Monroe, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Boone, MO, Audrain, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 8:00 AM
30 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
51°
0%
2 PM
52°
0%
3 PM
52°
0%
4 PM
52°
0%
5 PM
50°
0%
6 PM
47°
0%
7 PM
44°
0%
8 PM
42°
0%
9 PM
40°
0%
10 PM
40°
0%
11 PM
38°
0%
12 AM
37°
0%
1 AM
36°
0%
2 AM
36°
0%
3 AM
35°
0%
4 AM
33°
0%
5 AM
33°
0%
6 AM
33°
0%
7 AM
35°
0%
8 AM
36°
0%
9 AM
40°
0%
10 AM
42°
0%
11 AM
44°
0%
12 PM
49°
0%
7-Day Forecast
Today
53° 33°
Partly Cloudy.
Sat
56° 33°
Partly Cloudy.
Sun
64° 38°
Mostly Clear.
Mon
68° 45°
Clear.
Tue
67° 46°
Clear.
Wed
62° 43°
Partly Cloudy with a 39% chance of rain.
Thu
54° 36°
Overcast with a 65% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 51° Partly Cloudy 0% 12 mph NNW 56%
2 PM 52° Partly Cloudy 0% 12 mph NNW 53%
3 PM 52° Partly Cloudy 0% 12 mph NNW 50%
4 PM 52° Mostly Clear 0% 10 mph NNW 51%
5 PM 50° Mostly Clear 0% 7 mph NNW 54%
6 PM 47° Clear 0% 5 mph NNW 60%
7 PM 44° Clear 0% 5 mph NNW 67%
8 PM 42° Clear 0% 5 mph NNW 73%
9 PM 40° Clear 0% 5 mph NNW 76%
10 PM 40° Clear 0% 4 mph NNW 78%
11 PM 38° Clear 0% 4 mph NNW 78%
12 AM 37° Clear 0% 4 mph N 81%
1 AM 36° Clear 0% 4 mph N 84%
2 AM 36° Clear 0% 3 mph NNW 86%
3 AM 35° Clear 0% 3 mph NNW 88%
4 AM 33° Clear 0% 3 mph NNW 89%
5 AM 33° Clear 0% 3 mph NNW 90%
6 AM 33° Clear 0% 3 mph NNW 90%
7 AM 35° Clear 0% 3 mph NNW 88%
8 AM 36° Mostly Clear 0% 3 mph NNW 79%
9 AM 40° Mostly Clear 0% 4 mph NNW 69%
10 AM 42° Partly Cloudy 0% 4 mph NNW 62%
11 AM 44° Partly Cloudy 0% 4 mph NNW 58%
12 PM 49° Partly Cloudy 0% 4 mph NNW 54%
15-Day Forecast
Today
11/6
Partly Cloudy
0%
33°
53°
Sat
11/7
Partly Cloudy
0%
33°
56°
Sun
11/8
Mostly Clear
3%
38°
64°
Mon
11/9
Clear
3%
45°
68°
Tue
11/10
Clear
3%
46°
67°
Wed
11/11
Partly Cloudy
39%
43°
62°
Thu
11/12
Overcast
65%
36°
54°
Fri
11/13
Partly Cloudy
30%
33°
48°
Sat
11/14
Partly Cloudy
25%
28°
49°
Sun
11/15
Mostly Cloudy
52%
28°
54°
Mon
11/16
Overcast
81%
35°
58°
Tue
11/17
Drizzle
84%
46°
59°
Wed
11/18
Drizzle
78%
46°
58°
Thu
11/19
Drizzle
72%
43°
57°
Fri
11/20
Drizzle
70%
43°
56°
30
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
21 AQI 3.8 µg/m³
O3
Ground-level ozone
Dominant
30 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 30 Good 30 21
Sun 35 Good 26 35
Mon 53 Moderate 29 53
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 Nov 6, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE71 J/kg
MLCAPE15 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN-0 J/kg
Lifted Index14.4
Kinematics
0–6 km Shear19 kt
0–1 km Shear5 kt
Eff. Shear—
0–1 km SRH16
0–3 km SRH33
Eff. SRH—
Storm Motion346° @ 31 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-22.5
Thermo & Levels
PWAT0.34 in
0–3 km LR2.9 °C/km
700–500 LR7.5 °C/km
Total Totals27.0
LCL887 hPa
LFC1001 hPa
EL855 hPa
Freezing Lvl3,084 ft