Heat Advisory — 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, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 7:00 PM

Madison County, Missouri, United States

Last updated: 3:47 AM CDT  ·  Refresh
23°C
Feels like 27°
Partly Cloudy
▲ 32°  /  ▼ 22°
Wind
4 mph WSW
Humidity
88%
Dew Point
21°
Pressure
28.98 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
38%
Sunrise
5:55 AM
Sunset
8:19 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Madison County is currently partly cloudy at 24°C. Precipitation is likely — peak probability 67% around 4 PM. Atmospheric instability is elevated (CAPE up to 2448 J/kg) — isolated convective development possible. Sunrise: 5:55AM · Sunset: 8:19PM.

Alerts

Heat Advisory
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, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 7:00 PM
48 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
11%
4 AM
23°
25%
5 AM
22°
35%
6 AM
22°
35%
7 AM
24°
42%
8 AM
25°
50%
9 AM
28°
46%
10 AM
28°
52%
11 AM
29°
44%
12 PM
30°
54%
1 PM
31°
60%
2 PM
30°
60%
3 PM
29°
62%
4 PM
28°
67%
5 PM
29°
63%
6 PM
28°
54%
7 PM
27°
41%
8 PM
27°
34%
9 PM
23°
27%
10 PM
23°
13%
11 PM
23°
13%
12 AM
23°
12%
1 AM
23°
13%
2 AM
23°
13%
7-Day Forecast
Today
32° 22°
Mostly Cloudy with a 62% chance of rain.
Mon
34° 22°
Partly Cloudy with a 36% chance of rain.
Tue
39° 22°
Partly Cloudy with a 42% chance of rain.
Wed
28° 17°
Mostly Clear.
Thu
29° 16°
Clear.
Fri
29° 17°
Heavy Rain, 82% chance.
Sat
29° 17°
Drizzle, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Partly Cloudy 11% 4 mph WSW 88%
4 AM 23° Partly Cloudy 25% 4 mph WSW 87%
5 AM 22° Partly Cloudy 35% 3 mph WSW 87%
6 AM 22° Mostly Cloudy 35% 3 mph W 87%
7 AM 24° Mostly Cloudy 42% 4 mph W 83%
8 AM 25° Mostly Cloudy 50% 4 mph WNW 80%
9 AM 28° Partly Cloudy 46% 4 mph WNW 76%
10 AM 28° Partly Cloudy 52% 4 mph WNW 72%
11 AM 29° Partly Cloudy 44% 3 mph WNW 69%
12 PM 30° Partly Cloudy 54% 4 mph W 66%
1 PM 31° Partly Cloudy 60% 4 mph W 67%
2 PM 30° Mostly Cloudy 60% 4 mph WNW 70%
3 PM 29° Mostly Cloudy 62% 4 mph NNW 73%
4 PM 28° Mostly Cloudy 67% 4 mph N 77%
5 PM 29° Overcast 63% 4 mph N 80%
6 PM 28° Overcast 54% 4 mph NNE 84%
7 PM 27° Overcast 41% 3 mph NNE 87%
8 PM 27° Overcast 34% 3 mph NNE 91%
9 PM 23° Mostly Cloudy 27% 3 mph NNE 95%
10 PM 23° Mostly Cloudy 13% 3 mph NNE 96%
11 PM 23° Overcast 13% 2 mph NNE 97%
12 AM 23° Haze 12% 2 mph NNE 97%
1 AM 23° Fog 13% 2 mph NNE 97%
2 AM 23° Fog 13% 2 mph NNE 98%
15-Day Forecast
Today
7/19
Mostly Cloudy
62%
22°
32°
Mon
7/20
Partly Cloudy
36%
22°
34°
Tue
7/21
Partly Cloudy
42%
22°
39°
Wed
7/22
Mostly Clear
16%
17°
28°
Thu
7/23
Clear
16%
16°
29°
Fri
7/24
Heavy Rain
82%
17°
29°
Sat
7/25
Drizzle
82%
17°
29°
Sun
7/26
Drizzle
43%
17°
33°
Mon
7/27
Drizzle
44%
19°
36°
Tue
7/28
Clear
44%
22°
35°
Wed
7/29
Clear
60%
21°
34°
Thu
7/30
Clear
60%
21°
34°
Fri
7/31
Drizzle
60%
21°
35°
Sat
8/1
Rain
90%
22°
34°
Sun
8/2
Drizzle
60%
21°
34°
48
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
48 AQI 8.6 µg/m³
O3
Ground-level ozone
26 AQI 28 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 48 Good 26 48
Mon 51 Moderate 31 51
Tue 54 Moderate 26 54
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 19, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE291 J/kg
MLCAPE443 J/kg
MUCAPE581 J/kg
SBCIN-166 J/kg
MLCIN0 J/kg
Lifted Index-1.7
Kinematics
0–6 km Shear9 kt
0–1 km Shear16 kt
Eff. Shear9 kt
0–1 km SRH-9
0–3 km SRH-3
Eff. SRH-3
Storm Motion282° @ 27 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.7
Thermo & Levels
PWAT1.87 in
0–3 km LR4.8 °C/km
700–500 LR5.6 °C/km
Total Totals45.5
LCL953 hPa
LFC788 hPa
EL250 hPa
Freezing Lvl15,243 ft