Excessive Heat 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, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, Franklin, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 9:00 PM Excessive Heat Watch 7:00 PM

Marion County, Missouri, United States

Last updated: 7:44 AM CDT  ·  Refresh
27°C
Feels like 31°
Partly Cloudy
▲ 38°  /  ▼ 26°
Wind
4 mph WSW
Humidity
93%
Dew Point
25°
Pressure
29.25 inHg
Visibility
9 mi
UV Index
4.0
Cloud Cover
57%
Sunrise
6:00 AM
Sunset
8:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marion County is currently partly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4434 J/kg) — isolated convective development possible. Sunrise: 6:00AM · Sunset: 8:25PM.

Alerts

Excessive Heat 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, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, Franklin, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 9:00 PM
Excessive Heat Watch
Expires 7:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
11%
8 AM
28°
29%
9 AM
31°
21%
10 AM
32°
29%
11 AM
34°
29%
12 PM
36°
29%
1 PM
37°
38%
2 PM
38°
43%
3 PM
38°
37%
4 PM
37°
29%
5 PM
36°
29%
6 PM
34°
24%
7 PM
33°
8%
8 PM
32°
10%
9 PM
31°
10%
10 PM
29°
13%
11 PM
29°
18%
12 AM
28°
12%
1 AM
27°
16%
2 AM
27°
25%
3 AM
27°
24%
4 AM
27°
24%
5 AM
27°
24%
6 AM
27°
18%
7-Day Forecast
Today
38° 26°
Partly Cloudy with a 38% chance of rain.
Mon
39° 26°
Partly Cloudy with a 25% chance of rain.
Tue
36° 21°
Mostly Cloudy with a 35% chance of rain.
Wed
34° 19°
Mostly Clear with a 32% chance of rain.
Thu
35° 19°
Rain, 64% chance.
Fri
32° 21°
Rain, 64% chance.
Sat
33° 19°
Clear with a 30% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 27° Partly Cloudy 11% 4 mph WSW 93%
8 AM 28° Mostly Cloudy 29% 5 mph W 85%
9 AM 31° Partly Cloudy 21% 6 mph W 78%
10 AM 32° Partly Cloudy 29% 7 mph W 71%
11 AM 34° Partly Cloudy 29% 8 mph W 64%
12 PM 36° Partly Cloudy 29% 9 mph WSW 57%
1 PM 37° Mostly Clear 38% 8 mph W 54%
2 PM 38° Partly Cloudy 43% 8 mph W 51%
3 PM 38° Mostly Cloudy 37% 7 mph W 49%
4 PM 37° Mostly Cloudy 29% 7 mph W 51%
5 PM 36° Mostly Cloudy 29% 9 mph W 54%
6 PM 34° Partly Cloudy 24% 10 mph WNW 58%
7 PM 33° Partly Cloudy 8% 8 mph WSW 59%
8 PM 32° Partly Cloudy 10% 6 mph SW 60%
9 PM 31° Partly Cloudy 10% 6 mph SW 60%
10 PM 29° Partly Cloudy 13% 7 mph SW 64%
11 PM 29° Mostly Clear 18% 7 mph SSW 68%
12 AM 28° Mostly Clear 12% 7 mph SSW 73%
1 AM 27° Mostly Clear 16% 7 mph SSW 73%
2 AM 27° Partly Cloudy 25% 7 mph SSW 73%
3 AM 27° Partly Cloudy 24% 7 mph SW 73%
4 AM 27° Partly Cloudy 24% 6 mph SW 74%
5 AM 27° Mostly Cloudy 24% 5 mph SW 75%
6 AM 27° Mostly Cloudy 18% 5 mph SW 76%
15-Day Forecast
Today
7/26
Partly Cloudy
38%
26°
38°
Mon
7/27
Partly Cloudy
25%
26°
39°
Tue
7/28
Mostly Cloudy
35%
21°
36°
Wed
7/29
Mostly Clear
32%
19°
34°
Thu
7/30
Rain
64%
19°
35°
Fri
7/31
Rain
64%
21°
32°
Sat
8/1
Clear
30%
19°
33°
Sun
8/2
Drizzle
42%
18°
33°
Mon
8/3
Drizzle
44%
19°
36°
Tue
8/4
Rain
50%
21°
36°
Wed
8/5
Drizzle
68%
21°
37°
Thu
8/6
Drizzle
60%
20°
36°
Fri
8/7
Drizzle
60%
20°
36°
Sat
8/8
Drizzle
60%
21°
37°
Sun
8/9
Drizzle
60%
21°
37°
53
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
53 AQI 10.3 µg/m³
O3
Ground-level ozone
44 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 53 Moderate 44 53
Tue 49 Good 37 49
Wed 49 Good 44 49
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 Sun Jul 26, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3179 J/kg
MLCAPE2981 J/kg
MUCAPE3387 J/kg
SBCIN-214 J/kg
MLCIN0 J/kg
Lifted Index-6.1
Kinematics
0–6 km Shear19 kt
0–1 km Shear15 kt
Eff. Shear23 kt
0–1 km SRH-19
0–3 km SRH-18
Eff. SRH-18
Storm Motion269° @ 19 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.9
Thermo & Levels
PWAT1.69 in
0–3 km LR4.7 °C/km
700–500 LR6.2 °C/km
Total Totals45.8
LCL970 hPa
LFC724 hPa
EL155 hPa
Freezing Lvl16,224 ft