Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Heat Advisory — Perry, AL, Marion, AL, Lamar, AL, Fayette, AL, Winston, AL, Walker, AL, Blount, AL, Etowah, AL, Cherokee, AL, Pickens, AL, Tuscaloosa, AL, Jefferson, AL, Shelby, AL, St. Clair, AL, Sumter, AL, Greene, AL, Hale, AL, Bibb, AL, Chilton, AL, Calhoun, AL, Cleburne, AL, Talladega, AL, Clay, AL, Randolph, AL, Coosa, AL, Tallapoosa, AL, Chambers, AL, Marengo, AL, Dallas, AL, Autauga, AL, Lowndes, AL, Elmore, AL, Montgomery, AL, Macon, AL, Bullock, AL, Lee, AL, Russell, AL, Pike, AL, Barbour, AL 9:00 PM Heat Advisory — Calhoun, AL, Talladega, AL, Coosa, AL, Tallapoosa, AL, Marengo, AL, Dallas, AL, Autauga, AL, Lowndes, AL, Elmore, AL, Montgomery, AL, Marion, AL, Lamar, AL, Fayette, AL, Winston, AL, Walker, AL, Blount, AL, Etowah, AL, Cherokee, AL, Pickens, AL, Tuscaloosa, AL, Jefferson, AL, Shelby, AL, St. Clair, AL, Sumter, AL, Greene, AL, Hale, AL, Perry, AL, Bibb, AL, Chilton, AL 9:00 PM

St. Clair County, Alabama, United States

Last updated: 5:14 PM CDT  ·  Refresh
29°C
Feels like 35°
Mostly Cloudy
▲ 34°  /  ▼ 21°
Wind
6 mph NNW
Humidity
77%
Dew Point
24°
Pressure
29.31 inHg
Visibility
10 mi
UV Index
5.0
Cloud Cover
65%
Sunrise
5:38 AM
Sunset
7:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: St. Clair County is currently mostly cloudy at 29°C. Precipitation is likely — peak probability 87% around 5 PM. Atmospheric instability is elevated (CAPE up to 2975 J/kg) — isolated convective development possible. Sunrise: 5:38AM · Sunset: 7:59PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Heat Advisory
Perry, AL, Marion, AL, Lamar, AL, Fayette, AL, Winston, AL, Walker, AL, Blount, AL, Etowah, AL, Cherokee, AL, Pickens, AL, Tuscaloosa, AL, Jefferson, AL, Shelby, AL, St. Clair, AL, Sumter, AL, Greene, AL, Hale, AL, Bibb, AL, Chilton, AL, Calhoun, AL, Cleburne, AL, Talladega, AL, Clay, AL, Randolph, AL, Coosa, AL, Tallapoosa, AL, Chambers, AL, Marengo, AL, Dallas, AL, Autauga, AL, Lowndes, AL, Elmore, AL, Montgomery, AL, Macon, AL, Bullock, AL, Lee, AL, Russell, AL, Pike, AL, Barbour, AL
Expires 9:00 PM
Heat Advisory
Calhoun, AL, Talladega, AL, Coosa, AL, Tallapoosa, AL, Marengo, AL, Dallas, AL, Autauga, AL, Lowndes, AL, Elmore, AL, Montgomery, AL, Marion, AL, Lamar, AL, Fayette, AL, Winston, AL, Walker, AL, Blount, AL, Etowah, AL, Cherokee, AL, Pickens, AL, Tuscaloosa, AL, Jefferson, AL, Shelby, AL, St. Clair, AL, Sumter, AL, Greene, AL, Hale, AL, Perry, AL, Bibb, AL, Chilton, AL
Expires 9:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
87%
6 PM
30°
60%
7 PM
29°
66%
8 PM
28°
67%
9 PM
26°
46%
10 PM
25°
23%
11 PM
24°
16%
12 AM
24°
17%
1 AM
23°
4%
2 AM
23°
8%
3 AM
23°
8%
4 AM
22°
8%
5 AM
21°
8%
6 AM
22°
8%
7 AM
23°
8%
8 AM
25°
23%
9 AM
28°
26%
10 AM
29°
36%
11 AM
31°
43%
12 PM
33°
44%
1 PM
35°
44%
2 PM
35°
44%
3 PM
34°
45%
4 PM
34°
51%
7-Day Forecast
Today
34° 21°
Mostly Cloudy with a 87% chance of rain.
Thu
37° 21°
Partly Cloudy with a 61% chance of rain.
Fri
35° 21°
Partly Cloudy with a 35% chance of rain.
Sat
34° 22°
Mostly Cloudy with a 39% chance of rain.
Sun
34° 22°
Rain, 64% chance.
Mon
34° 21°
Rain, 82% chance.
Tue
34° 22°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Mostly Cloudy 87% 6 mph NNW 77%
6 PM 30° Mostly Cloudy 60% 6 mph NW 83%
7 PM 29° Partly Cloudy 66% 6 mph NNW 84%
8 PM 28° Mostly Cloudy 67% 4 mph NNW 84%
9 PM 26° Mostly Cloudy 46% 3 mph NNW 83%
10 PM 25° Mostly Cloudy 23% 2 mph NNW 82%
11 PM 24° Partly Cloudy 16% 2 mph NNW 83%
12 AM 24° Partly Cloudy 17% 2 mph NNW 86%
1 AM 23° Partly Cloudy 4% 2 mph N 88%
2 AM 23° Partly Cloudy 8% 3 mph N 89%
3 AM 23° Partly Cloudy 8% 3 mph NNE 90%
4 AM 22° Partly Cloudy 8% 3 mph NNE 90%
5 AM 21° Partly Cloudy 8% 3 mph NNE 90%
6 AM 22° Mostly Cloudy 8% 2 mph NNE 90%
7 AM 23° Partly Cloudy 8% 2 mph NNE 88%
8 AM 25° Partly Cloudy 23% 2 mph NE 79%
9 AM 28° Partly Cloudy 26% 2 mph NE 70%
10 AM 29° Mostly Clear 36% 3 mph NE 62%
11 AM 31° Mostly Clear 43% 3 mph NE 57%
12 PM 33° Mostly Clear 44% 3 mph ENE 53%
1 PM 35° Mostly Clear 44% 3 mph ENE 50%
2 PM 35° Partly Cloudy 44% 3 mph NE 50%
3 PM 34° Partly Cloudy 45% 3 mph NE 50%
4 PM 34° Partly Cloudy 51% 3 mph NNE 51%
15-Day Forecast
Today
7/1
Mostly Cloudy
87%
21°
34°
Thu
7/2
Partly Cloudy
61%
21°
37°
Fri
7/3
Partly Cloudy
35%
21°
35°
Sat
7/4
Mostly Cloudy
39%
22°
34°
Sun
7/5
Rain
64%
22°
34°
Mon
7/6
Rain
82%
21°
34°
Tue
7/7
Rain
71%
22°
34°
Wed
7/8
Rain
90%
22°
32°
Thu
7/9
Rain
90%
22°
33°
Fri
7/10
Rain
68%
22°
33°
Sat
7/11
Drizzle
60%
22°
33°
Sun
7/12
Drizzle
60%
22°
33°
Mon
7/13
Drizzle
60%
22°
33°
Tue
7/14
Drizzle
60%
22°
33°
Wed
7/15
Drizzle
90%
21°
33°
53
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
53 AQI 10.0 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 53 Moderate 35 53
Fri 53 Moderate 39 53
Sat 54 Moderate 38 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 Wed Jul 1, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3229 J/kg
MLCAPE3748 J/kg
MUCAPE4202 J/kg
SBCIN-61 J/kg
MLCIN0 J/kg
Lifted Index-8.1
Kinematics
0–6 km Shear15 kt
0–1 km Shear6 kt
Eff. Shear18 kt
0–1 km SRH-32
0–3 km SRH-70
Eff. SRH-70
Storm Motion36° @ 17 kt
0–1 km EHI-0.7
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index41.9
Thermo & Levels
PWAT2.33 in
0–3 km LR6.2 °C/km
700–500 LR6.8 °C/km
Total Totals55.7
LCL912 hPa
LFC825 hPa
EL154 hPa
Freezing Lvl14,839 ft