Flood Watch Flood Warning — Vernon County, MO, Bourbon County, KS, Cedar County, MO, St. Clair County, MO Heat Advisory — 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 7:00 PM

St. Clair County, Missouri, United States

Last updated: 6:51 AM CDT  ·  Refresh
26°C
Feels like 29°
Clear
▲ 35°  /  ▼ 18°
Wind
7 mph WSW
Humidity
85%
Dew Point
23°
Pressure
28.97 inHg
Visibility
9 mi
UV Index
2.5
Cloud Cover
8%
Sunrise
6:09 AM
Sunset
8:33 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: St. Clair County is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2141 J/kg) — isolated convective development possible. Sunrise: 6:09AM · Sunset: 8:33PM.

Alerts

Flood Watch
Expires
Flood Warning
Vernon County, MO, Bourbon County, KS, Cedar County, MO, St. Clair County, MO
Expires
Heat Advisory
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 7:00 PM
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
11%
7 AM
26°
27%
8 AM
28°
27%
9 AM
30°
20%
10 AM
31°
20%
11 AM
33°
20%
12 PM
34°
14%
1 PM
35°
3%
2 PM
35°
3%
3 PM
35°
3%
4 PM
34°
3%
5 PM
33°
3%
6 PM
32°
3%
7 PM
31°
3%
8 PM
28°
3%
9 PM
26°
3%
10 PM
26°
3%
11 PM
24°
3%
12 AM
24°
3%
1 AM
23°
3%
2 AM
23°
3%
3 AM
22°
3%
4 AM
22°
3%
5 AM
21°
3%
7-Day Forecast
Today
35° 18°
Mostly Clear with a 20% chance of rain.
Wed
30° 18°
Mostly Clear.
Thu
27° 18°
Mostly Cloudy with a 34% chance of rain.
Fri
27° 18°
Heavy Rain, 69% chance.
Sat
34° 21°
Mostly Clear with a 64% chance of rain.
Sun
36° 24°
Clear.
Mon
37° 24°
Clear with a 25% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 11% 7 mph WSW 85%
7 AM 26° Mostly Clear 27% 6 mph W 78%
8 AM 28° Mostly Clear 27% 7 mph WNW 74%
9 AM 30° Partly Cloudy 20% 7 mph NW 70%
10 AM 31° Partly Cloudy 20% 7 mph NNW 64%
11 AM 33° Partly Cloudy 20% 8 mph N 57%
12 PM 34° Mostly Clear 14% 11 mph N 49%
1 PM 35° Mostly Clear 3% 11 mph N 44%
2 PM 35° Mostly Clear 3% 12 mph N 42%
3 PM 35° Clear 3% 11 mph N 41%
4 PM 34° Clear 3% 10 mph N 44%
5 PM 33° Clear 3% 10 mph N 49%
6 PM 32° Clear 3% 8 mph N 54%
7 PM 31° Clear 3% 8 mph N 58%
8 PM 28° Clear 3% 8 mph NNE 62%
9 PM 26° Clear 3% 8 mph NNE 66%
10 PM 26° Clear 3% 8 mph NNE 69%
11 PM 24° Clear 3% 9 mph NE 72%
12 AM 24° Clear 3% 9 mph NE 74%
1 AM 23° Clear 3% 9 mph NE 74%
2 AM 23° Clear 3% 8 mph NE 75%
3 AM 22° Clear 3% 8 mph NE 75%
4 AM 22° Clear 3% 7 mph NE 76%
5 AM 21° Clear 3% 7 mph NE 76%
15-Day Forecast
Today
7/21
Mostly Clear
20%
18°
35°
Wed
7/22
Mostly Clear
6%
18°
30°
Thu
7/23
Mostly Cloudy
34%
18°
27°
Fri
7/24
Heavy Rain
69%
18°
27°
Sat
7/25
Mostly Clear
64%
21°
34°
Sun
7/26
Clear
5%
24°
36°
Mon
7/27
Clear
25%
24°
37°
Tue
7/28
Partly Cloudy
15%
23°
37°
Wed
7/29
Clear
35%
22°
36°
Thu
7/30
Mostly Clear
24%
24°
34°
Fri
7/31
Partly Cloudy
32%
22°
35°
Sat
8/1
Drizzle
60%
22°
35°
Sun
8/2
Drizzle
60%
21°
34°
Mon
8/3
Drizzle
60%
22°
36°
Tue
8/4
Drizzle
60%
22°
35°
55
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
55 AQI 11.1 µg/m³
O3
Ground-level ozone
39 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 55 Moderate 39 55
Thu 53 Moderate 37 53
Fri 30 Good 30 30
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 Jul 21, 10:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1063 J/kg
MLCAPE735 J/kg
MUCAPE1282 J/kg
SBCIN-355 J/kg
MLCIN0 J/kg
Lifted Index-3.4
Kinematics
0–6 km Shear26 kt
0–1 km Shear10 kt
Eff. Shear24 kt
0–1 km SRH31
0–3 km SRH35
Eff. SRH-15
Storm Motion287° @ 26 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.2
STP (eff)0.0
Supercell0.0
K-Index27.6
Thermo & Levels
PWAT1.69 in
0–3 km LR4.3 °C/km
700–500 LR6.5 °C/km
Total Totals46.7
LCL943 hPa
LFC658 hPa
EL184 hPa
Freezing Lvl15,938 ft