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

Warren County, Missouri, United States

Last updated: 5:12 AM CDT  ·  Refresh
25°C
Feels like 27°
Mostly Clear
▲ 35°  /  ▼ 24°
Wind
5 mph SSW
Humidity
76%
Dew Point
21°
Pressure
29.13 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
14%
Sunrise
6:14 AM
Sunset
8:03 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Warren County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3052 J/kg) — isolated convective development possible. Sunrise: 6:14AM · Sunset: 8:03PM.

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
36 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
4%
6 AM
23°
21%
7 AM
23°
20%
8 AM
25°
20%
9 AM
26°
20%
10 AM
28°
20%
11 AM
29°
20%
12 PM
31°
14%
1 PM
33°
3%
2 PM
33°
4%
3 PM
34°
4%
4 PM
34°
16%
5 PM
35°
16%
6 PM
34°
16%
7 PM
33°
21%
8 PM
31°
30%
9 PM
29°
30%
10 PM
28°
22%
11 PM
28°
30%
12 AM
27°
30%
1 AM
27°
31%
2 AM
27°
31%
3 AM
27°
24%
4 AM
26°
26%
7-Day Forecast
Today
35° 24°
Mostly Clear with a 30% chance of rain.
Wed
37° 24°
Partly Cloudy with a 38% chance of rain.
Thu
35° 24°
Partly Cloudy with a 28% chance of rain.
Fri
34° 22°
Clear with a 21% chance of rain.
Sat
38° 23°
Partly Cloudy.
Sun
37° 22°
Drizzle, 47% chance.
Mon
33° 19°
Mostly Clear with a 39% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 4% 5 mph SSW 76%
6 AM 23° Mostly Clear 21% 6 mph SSW 75%
7 AM 23° Mostly Clear 20% 7 mph SW 75%
8 AM 25° Partly Cloudy 20% 8 mph SW 70%
9 AM 26° Partly Cloudy 20% 10 mph SW 65%
10 AM 28° Partly Cloudy 20% 11 mph SW 59%
11 AM 29° Mostly Clear 20% 11 mph SW 55%
12 PM 31° Mostly Clear 14% 11 mph SW 51%
1 PM 33° Clear 3% 11 mph SW 47%
2 PM 33° Clear 4% 10 mph SW 46%
3 PM 34° Mostly Clear 4% 10 mph SW 44%
4 PM 34° Partly Cloudy 16% 9 mph SW 44%
5 PM 35° Mostly Clear 16% 8 mph SW 48%
6 PM 34° Mostly Clear 16% 6 mph SW 53%
7 PM 33° Partly Cloudy 21% 5 mph SSW 58%
8 PM 31° Partly Cloudy 30% 5 mph SSW 61%
9 PM 29° Partly Cloudy 30% 5 mph SSW 63%
10 PM 28° Partly Cloudy 22% 6 mph SSW 65%
11 PM 28° Partly Cloudy 30% 6 mph SSW 67%
12 AM 27° Partly Cloudy 30% 6 mph SSW 69%
1 AM 27° Partly Cloudy 31% 6 mph SSW 70%
2 AM 27° Mostly Clear 31% 6 mph SSW 70%
3 AM 27° Mostly Clear 24% 6 mph SSW 71%
4 AM 26° Clear 26% 7 mph SW 71%
15-Day Forecast
Today
8/11
Mostly Clear
30%
24°
35°
Wed
8/12
Partly Cloudy
38%
24°
37°
Thu
8/13
Partly Cloudy
28%
24°
35°
Fri
8/14
Clear
21%
22°
34°
Sat
8/15
Partly Cloudy
15%
23°
38°
Sun
8/16
Drizzle
47%
22°
37°
Mon
8/17
Mostly Clear
39%
19°
33°
Tue
8/18
Rain
53%
19°
38°
Wed
8/19
Mostly Cloudy
35%
22°
38°
Thu
8/20
Mostly Clear
35%
23°
38°
Fri
8/21
Clear
60%
21°
38°
Sat
8/22
Drizzle
60%
21°
35°
Sun
8/23
Clear
60%
21°
35°
Mon
8/24
Drizzle
60%
20°
32°
Tue
8/25
Drizzle
60%
19°
32°
36
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
36 AQI 6.4 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 33 36
Wed 34 Good 34 20
Thu 32 Good 31 32
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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1330 J/kg
MLCAPE1573 J/kg
MUCAPE1853 J/kg
SBCIN-569 J/kg
MLCIN0 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear19 kt
0–1 km Shear22 kt
Eff. Shear12 kt
0–1 km SRH155
0–3 km SRH116
Eff. SRH-41
Storm Motion309° @ 18 kt
0–1 km EHI1.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.6
Thermo & Levels
PWAT1.46 in
0–3 km LR4.1 °C/km
700–500 LR8.0 °C/km
Total Totals53.2
LCL933 hPa
LFC641 hPa
EL195 hPa
Freezing Lvl14,469 ft