Extreme Heat Warning — Bourbon, KS, Crawford, KS, Cherokee, KS, Benton, MO, Morgan, MO, Miller, MO, Maries, MO, Vernon, MO, St. Clair, MO, Hickory, MO, Camden, MO, Pulaski, MO, Phelps, MO, Barton, MO, Cedar, MO, Polk, MO, Dallas, MO, Laclede, MO, Texas, MO, Dent, MO, Jasper, MO, Dade, MO, Greene, MO, Webster, MO, Wright, MO, Newton, MO, Lawrence, MO, Christian, MO, Douglas, MO, Howell, MO, Shannon, MO, McDonald, MO, Barry, MO, Stone, MO, Taney, MO, Ozark, MO, Oregon, MO 8:00 PM

St. Clair County, Missouri, United States

Last updated: 7:44 AM CDT  ·  Refresh
26°C
Feels like 28°
Clear
▲ 37°  /  ▼ 22°
Wind
3 mph E
Humidity
68%
Dew Point
20°
Pressure
29.08 inHg
Visibility
10 mi
UV Index
2.8
Cloud Cover
7%
Sunrise
6:49 AM
Sunset
7:36 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: St. Clair County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1719 J/kg) — isolated convective development possible. Sunrise: 6:49AM · Sunset: 7:36PM.

Alerts

Extreme Heat Warning
Bourbon, KS, Crawford, KS, Cherokee, KS, Benton, MO, Morgan, MO, Miller, MO, Maries, MO, Vernon, MO, St. Clair, MO, Hickory, MO, Camden, MO, Pulaski, MO, Phelps, MO, Barton, MO, Cedar, MO, Polk, MO, Dallas, MO, Laclede, MO, Texas, MO, Dent, MO, Jasper, MO, Dade, MO, Greene, MO, Webster, MO, Wright, MO, Newton, MO, Lawrence, MO, Christian, MO, Douglas, MO, Howell, MO, Shannon, MO, McDonald, MO, Barry, MO, Stone, MO, Taney, MO, Ozark, MO, Oregon, MO
Expires 8:00 PM
43 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
15%
8 AM
26°
31%
9 AM
29°
23%
10 AM
31°
23%
11 AM
33°
23%
12 PM
34°
15%
1 PM
37°
15%
2 PM
37°
24%
3 PM
37°
28%
4 PM
36°
28%
5 PM
36°
38%
6 PM
34°
39%
7 PM
32°
39%
8 PM
31°
33%
9 PM
28°
34%
10 PM
27°
32%
11 PM
26°
32%
12 AM
26°
22%
1 AM
26°
17%
2 AM
24°
14%
3 AM
24°
14%
4 AM
24°
5%
5 AM
22°
5%
6 AM
22°
5%
7-Day Forecast
Today
37° 22°
Partly Cloudy with a 39% chance of rain.
Mon
35° 22°
Partly Cloudy.
Tue
42° 21°
Partly Cloudy.
Wed
41° 22°
Partly Cloudy with a 65% chance of rain.
Thu
34° 19°
Rain, 90% chance.
Fri
37° 17°
Rain, 61% chance.
Sat
39° 21°
Overcast with a 63% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 15% 3 mph E 68%
8 AM 26° Mostly Clear 31% 5 mph E 56%
9 AM 29° Partly Cloudy 23% 6 mph E 49%
10 AM 31° Partly Cloudy 23% 6 mph E 44%
11 AM 33° Partly Cloudy 23% 6 mph ENE 40%
12 PM 34° Mostly Clear 15% 6 mph ENE 37%
1 PM 37° Partly Cloudy 15% 6 mph ENE 36%
2 PM 37° Partly Cloudy 24% 7 mph ENE 34%
3 PM 37° Partly Cloudy 28% 7 mph ENE 34%
4 PM 36° Partly Cloudy 28% 8 mph E 38%
5 PM 36° Partly Cloudy 38% 9 mph E 42%
6 PM 34° Partly Cloudy 39% 8 mph ESE 47%
7 PM 32° Partly Cloudy 39% 9 mph ESE 53%
8 PM 31° Partly Cloudy 33% 7 mph E 59%
9 PM 28° Partly Cloudy 34% 7 mph E 65%
10 PM 27° Partly Cloudy 32% 7 mph E 68%
11 PM 26° Partly Cloudy 32% 7 mph E 71%
12 AM 26° Partly Cloudy 22% 7 mph E 72%
1 AM 26° Partly Cloudy 17% 7 mph E 73%
2 AM 24° Partly Cloudy 14% 8 mph E 73%
3 AM 24° Mostly Cloudy 14% 8 mph ESE 72%
4 AM 24° Mostly Cloudy 5% 8 mph ESE 73%
5 AM 22° Mostly Cloudy 5% 8 mph ESE 73%
6 AM 22° Partly Cloudy 5% 8 mph ESE 74%
15-Day Forecast
Today
9/6
Partly Cloudy
39%
22°
37°
Mon
9/7
Partly Cloudy
17%
22°
35°
Tue
9/8
Partly Cloudy
3%
21°
42°
Wed
9/9
Partly Cloudy
65%
22°
41°
Thu
9/10
Rain
90%
19°
34°
Fri
9/11
Rain
61%
17°
37°
Sat
9/12
Overcast
63%
21°
39°
Sun
9/13
Rain
59%
17°
32°
Mon
9/14
Drizzle
54%
15°
29°
Tue
9/15
Drizzle
56%
9°
29°
Wed
9/16
Drizzle
60%
8°
32°
Thu
9/17
Clear
60%
17°
33°
Fri
9/18
Drizzle
60%
17°
32°
Sat
9/19
Drizzle
60%
18°
32°
Sun
9/20
Drizzle
60%
18°
33°
43
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
41 AQI 7.4 µg/m³
O3
Ground-level ozone
Dominant
43 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 43 Good 43 41
Tue 52 Moderate 42 52
Wed 52 Moderate 50 52
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 Sep 6, 11:00'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
SBCAPE172 J/kg
MLCAPE204 J/kg
MUCAPE241 J/kg
SBCIN-533 J/kg
MLCIN-294 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear12 kt
0–1 km Shear1 kt
Eff. Shear18 kt
0–1 km SRH-5
0–3 km SRH34
Eff. SRH77
Storm Motion56° @ 20 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.9
Thermo & Levels
PWAT1.49 in
0–3 km LR5.3 °C/km
700–500 LR6.3 °C/km
Total Totals49.7
LCL903 hPa
LFC634 hPa
EL274 hPa
Freezing Lvl14,541 ft