Excessive Heat Watch 12:00 AM Heat Advisory — 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, Crawford, MO, Washington, MO, St. Francois, MO, Iron, MO, Madison, MO, Reynolds, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Ste. Genevieve, MO 10:00 PM Excessive Heat Warning — 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, Ste. Genevieve, MO, 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, Iron, MO, Madison, MO, Reynolds, MO 8:00 PM

Warren County, Missouri, United States

Last updated: 6:52 PM CDT  ·  Refresh
31°C
Feels like 36°
Partly Cloudy
▲ 34°  /  ▼ 22°
Wind
6 mph S
Humidity
63%
Dew Point
24°
Pressure
29.17 inHg
Visibility
9 mi
UV Index
3.8
Cloud Cover
48%
Sunrise
5:44 AM
Sunset
8:33 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Warren County is currently partly cloudy at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3192 J/kg) — isolated convective development possible. Sunrise: 5:44AM · Sunset: 8:33PM.

Alerts

Excessive Heat Watch
Expires 12:00 AM
Heat Advisory
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, Crawford, MO, Washington, MO, St. Francois, MO, Iron, MO, Madison, MO, Reynolds, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Ste. Genevieve, MO
Expires 10:00 PM
Excessive Heat Warning
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, Ste. Genevieve, MO, 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, Iron, MO, Madison, MO, Reynolds, MO
Expires 8:00 PM
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
32%
7 PM
31°
48%
8 PM
29°
47%
9 PM
27°
32%
10 PM
26°
30%
11 PM
26°
29%
12 AM
25°
16%
1 AM
24°
3%
2 AM
24°
4%
3 AM
23°
5%
4 AM
24°
5%
5 AM
22°
5%
6 AM
23°
8%
7 AM
24°
14%
8 AM
26°
19%
9 AM
28°
19%
10 AM
29°
20%
11 AM
31°
23%
12 PM
32°
21%
1 PM
33°
21%
2 PM
33°
21%
3 PM
33°
19%
4 PM
32°
22%
5 PM
32°
22%
7-Day Forecast
Tonight
34° 22°
Partly Cloudy with a 32% chance of rain.
Fri
35° 22°
Mostly Clear with a 25% chance of rain.
Sat
35° 23°
Mostly Clear with a 36% chance of rain.
Sun
32° 20°
Rain, 56% chance.
Mon
33° 20°
Rain, 64% chance.
Tue
32° 19°
Drizzle, 51% chance.
Wed
34° 20°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 32% 6 mph S 63%
7 PM 31° Mostly Cloudy 48% 7 mph SSE 71%
8 PM 29° Mostly Cloudy 47% 7 mph S 77%
9 PM 27° Mostly Cloudy 32% 8 mph S 83%
10 PM 26° Mostly Cloudy 30% 7 mph S 85%
11 PM 26° Mostly Cloudy 29% 6 mph S 85%
12 AM 25° Mostly Cloudy 16% 5 mph SSW 86%
1 AM 24° Mostly Cloudy 3% 4 mph SSW 88%
2 AM 24° Partly Cloudy 4% 5 mph SSW 90%
3 AM 23° Mostly Clear 5% 5 mph SSW 92%
4 AM 24° Mostly Clear 5% 4 mph SSW 89%
5 AM 22° Mostly Clear 5% 5 mph SSW 89%
6 AM 23° Clear 8% 4 mph SSW 88%
7 AM 24° Clear 14% 6 mph SSW 82%
8 AM 26° Clear 19% 6 mph SSW 76%
9 AM 28° Clear 19% 6 mph SSW 69%
10 AM 29° Clear 20% 7 mph SSW 63%
11 AM 31° Mostly Clear 23% 7 mph SSW 58%
12 PM 32° Mostly Clear 21% 7 mph SSW 53%
1 PM 33° Mostly Clear 21% 6 mph SSW 54%
2 PM 33° Partly Cloudy 21% 6 mph SW 55%
3 PM 33° Partly Cloudy 19% 7 mph SW 56%
4 PM 32° Partly Cloudy 22% 6 mph SW 58%
5 PM 32° Mostly Clear 22% 5 mph SW 59%
15-Day Forecast
Today
7/2
Partly Cloudy
32%
22°
34°
Fri
7/3
Mostly Clear
25%
22°
35°
Sat
7/4
Mostly Clear
36%
23°
35°
Sun
7/5
Rain
56%
20°
32°
Mon
7/6
Rain
64%
20°
33°
Tue
7/7
Drizzle
51%
19°
32°
Wed
7/8
Drizzle
52%
20°
34°
Thu
7/9
Partly Cloudy
28%
22°
34°
Fri
7/10
Thunderstorm
68%
21°
32°
Sat
7/11
Drizzle
68%
21°
33°
Sun
7/12
Rain
68%
19°
31°
Mon
7/13
Clear
60%
19°
31°
Tue
7/14
Drizzle
60%
19°
31°
Wed
7/15
Drizzle
60%
19°
32°
Thu
7/16
Drizzle
60%
20°
33°
56
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
56 AQI 11.7 µg/m³
O3
Ground-level ozone
26 AQI 28 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 56 Moderate 26 56
Sat 56 Moderate 26 56
Sun 58 Moderate 27 58
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 Thu Jul 2, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3554 J/kg
MLCAPE2631 J/kg
MUCAPE3554 J/kg
SBCIN-75 J/kg
MLCIN0 J/kg
Lifted Index-7.7
Kinematics
0–6 km Shear18 kt
0–1 km Shear10 kt
Eff. Shear18 kt
0–1 km SRH0
0–3 km SRH-35
Eff. SRH-35
Storm Motion193° @ 28 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.1
Thermo & Levels
PWAT2.01 in
0–3 km LR6.6 °C/km
700–500 LR6.5 °C/km
Total Totals51.0
LCL887 hPa
LFC845 hPa
EL141 hPa
Freezing Lvl15,226 ft