Extreme Heat Warning — Clinton, IL, Washington, IL, Randolph, IL, Madison, IL, St. Clair, IL, Monroe, IL, Boone, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Gasconade, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO 8:00 PM Heat Advisory — Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Marion, 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, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 8:00 PM

Monroe County, Missouri, United States

Last updated: 5:13 AM CDT  ·  Refresh
25°C
Feels like 26°
Mostly Clear
▲ 34°  /  ▼ 24°
Wind
8 mph SSW
Humidity
75%
Dew Point
21°
Pressure
29.17 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
17%
Sunrise
6:16 AM
Sunset
8:08 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Monroe County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4130 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 8:08PM.

Alerts

Extreme Heat Warning
Clinton, IL, Washington, IL, Randolph, IL, Madison, IL, St. Clair, IL, Monroe, IL, Boone, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Gasconade, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO
Expires 8:00 PM
Heat Advisory
Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Marion, 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, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 8:00 PM
45 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
3%
6 AM
24°
19%
7 AM
24°
20%
8 AM
26°
20%
9 AM
26°
20%
10 AM
27°
20%
11 AM
28°
20%
12 PM
30°
14%
1 PM
32°
3%
2 PM
32°
4%
3 PM
33°
4%
4 PM
33°
8%
5 PM
34°
8%
6 PM
33°
8%
7 PM
32°
8%
8 PM
31°
13%
9 PM
29°
22%
10 PM
28°
31%
11 PM
28°
31%
12 AM
26°
32%
1 AM
26°
35%
2 AM
26°
33%
3 AM
26°
33%
4 AM
25°
26%
7-Day Forecast
Today
34° 24°
Partly Cloudy with a 31% chance of rain.
Wed
34° 24°
Mostly Clear with a 50% chance of rain.
Thu
33° 23°
Partly Cloudy with a 64% chance of rain.
Fri
32° 21°
Overcast with a 42% chance of rain.
Sat
37° 24°
Partly Cloudy.
Sun
34° 21°
Drizzle, 49% chance.
Mon
32° 19°
Clear with a 47% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 3% 8 mph SSW 75%
6 AM 24° Mostly Clear 19% 9 mph SW 72%
7 AM 24° Partly Cloudy 20% 10 mph SW 72%
8 AM 26° Mostly Cloudy 20% 11 mph SW 69%
9 AM 26° Mostly Cloudy 20% 13 mph SW 66%
10 AM 27° Mostly Cloudy 20% 14 mph SW 63%
11 AM 28° Mostly Cloudy 20% 14 mph SW 61%
12 PM 30° Partly Cloudy 14% 13 mph SW 58%
1 PM 32° Partly Cloudy 3% 14 mph SW 56%
2 PM 32° Partly Cloudy 4% 14 mph SW 54%
3 PM 33° Partly Cloudy 4% 13 mph SW 53%
4 PM 33° Partly Cloudy 8% 13 mph SW 52%
5 PM 34° Partly Cloudy 8% 11 mph SW 57%
6 PM 33° Partly Cloudy 8% 8 mph SW 62%
7 PM 32° Mostly Cloudy 8% 7 mph SW 68%
8 PM 31° Partly Cloudy 13% 6 mph SSW 71%
9 PM 29° Partly Cloudy 22% 6 mph SSW 75%
10 PM 28° Partly Cloudy 31% 6 mph SSW 77%
11 PM 28° Partly Cloudy 31% 6 mph S 77%
12 AM 26° Mostly Clear 32% 7 mph S 78%
1 AM 26° Mostly Clear 35% 7 mph S 78%
2 AM 26° Partly Cloudy 33% 7 mph SSW 78%
3 AM 26° Partly Cloudy 33% 6 mph SSW 79%
4 AM 25° Partly Cloudy 26% 6 mph SSW 79%
15-Day Forecast
Today
8/11
Partly Cloudy
31%
24°
34°
Wed
8/12
Mostly Clear
50%
24°
34°
Thu
8/13
Partly Cloudy
64%
23°
33°
Fri
8/14
Overcast
42%
21°
32°
Sat
8/15
Partly Cloudy
15%
24°
37°
Sun
8/16
Drizzle
49%
21°
34°
Mon
8/17
Clear
47%
19°
32°
Tue
8/18
Clear
34%
21°
36°
Wed
8/19
Mostly Cloudy
35%
22°
37°
Thu
8/20
Partly Cloudy
32%
22°
40°
Fri
8/21
Drizzle
60%
20°
40°
Sat
8/22
Drizzle
60%
20°
34°
Sun
8/23
Clear
60%
20°
34°
Mon
8/24
Drizzle
60%
19°
32°
Tue
8/25
Drizzle
60%
19°
31°
45
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
45 AQI 8.1 µg/m³
O3
Ground-level ozone
30 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 45 Good 30 45
Wed 28 Good 28 26
Thu 41 Good 31 41
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 Tue Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1242 J/kg
MLCAPE1407 J/kg
MUCAPE2008 J/kg
SBCIN-653 J/kg
MLCIN0 J/kg
Lifted Index-4.3
Kinematics
0–6 km Shear13 kt
0–1 km Shear19 kt
Eff. Shear—
0–1 km SRH129
0–3 km SRH114
Eff. SRH—
Storm Motion331° @ 12 kt
0–1 km EHI1.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index21.1
Thermo & Levels
PWAT1.34 in
0–3 km LR4.0 °C/km
700–500 LR7.9 °C/km
Total Totals50.0
LCL933 hPa
LFC642 hPa
EL199 hPa
Freezing Lvl14,429 ft