Extreme Heat Warning — Marion, AL, Lamar, AL, Fayette, AL, Winston, AL, Walker, AL, Blount, AL, Etowah, AL, Calhoun, AL, Cherokee, AL, Cleburne, AL, Pickens, AL, Tuscaloosa, AL, Jefferson, AL, Shelby, AL, St. Clair, AL, Talladega, AL, Clay, AL, Randolph, AL, Sumter, AL, Greene, AL, Hale, AL, Perry, AL, Bibb, AL, Chilton, 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

Jefferson County, Alabama, United States

Last updated: 2:21 AM CDT  ·  Refresh
27°C
Feels like 30°
Mostly Clear
▲ 37°  /  ▼ 23°
Wind
3 mph SSW
Humidity
76%
Dew Point
23°
Pressure
29.39 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
14%
Sunrise
6:11 AM
Sunset
7:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2203 J/kg) — isolated convective development possible. Sunrise: 6:11AM · Sunset: 7:31PM.

Alerts

Extreme Heat Warning
Marion, AL, Lamar, AL, Fayette, AL, Winston, AL, Walker, AL, Blount, AL, Etowah, AL, Calhoun, AL, Cherokee, AL, Cleburne, AL, Pickens, AL, Tuscaloosa, AL, Jefferson, AL, Shelby, AL, St. Clair, AL, Talladega, AL, Clay, AL, Randolph, AL, Sumter, AL, Greene, AL, Hale, AL, Perry, AL, Bibb, AL, Chilton, 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
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
23°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
27°
7%
9 AM
29°
9%
10 AM
31°
9%
11 AM
33°
17%
12 PM
34°
18%
1 PM
36°
21%
2 PM
37°
25%
3 PM
37°
25%
4 PM
37°
35%
5 PM
36°
35%
6 PM
34°
39%
7 PM
33°
43%
8 PM
32°
47%
9 PM
28°
48%
10 PM
28°
38%
11 PM
27°
28%
12 AM
27°
28%
1 AM
27°
22%
7-Day Forecast
Today
37° 23°
Mostly Clear with a 47% chance of rain.
Tue
37° 23°
Mostly Clear.
Wed
38° 22°
Clear.
Thu
35° 23°
Mostly Clear with a 45% chance of rain.
Fri
36° 21°
Drizzle, 51% chance.
Sat
36° 21°
Drizzle, 52% chance.
Sun
36° 19°
Rain, 54% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Clear 3% 3 mph SSW 76%
3 AM 26° Mostly Clear 3% 4 mph SSW 75%
4 AM 25° Mostly Clear 3% 4 mph SW 76%
5 AM 23° Mostly Clear 3% 4 mph SW 77%
6 AM 24° Mostly Clear 3% 4 mph SW 79%
7 AM 24° Mostly Clear 3% 4 mph WSW 78%
8 AM 27° Mostly Clear 7% 6 mph W 71%
9 AM 29° Mostly Clear 9% 6 mph W 64%
10 AM 31° Mostly Clear 9% 6 mph W 57%
11 AM 33° Mostly Clear 17% 7 mph W 51%
12 PM 34° Mostly Clear 18% 7 mph W 45%
1 PM 36° Mostly Clear 21% 7 mph W 41%
2 PM 37° Mostly Clear 25% 8 mph W 39%
3 PM 37° Mostly Clear 25% 8 mph W 38%
4 PM 37° Mostly Clear 35% 8 mph W 38%
5 PM 36° Partly Cloudy 35% 7 mph W 43%
6 PM 34° Partly Cloudy 39% 6 mph W 48%
7 PM 33° Partly Cloudy 43% 6 mph WSW 55%
8 PM 32° Partly Cloudy 47% 5 mph WSW 61%
9 PM 28° Mostly Clear 48% 6 mph SW 67%
10 PM 28° Mostly Clear 38% 6 mph SW 71%
11 PM 27° Mostly Clear 28% 5 mph SW 74%
12 AM 27° Partly Cloudy 28% 4 mph SW 76%
1 AM 27° Partly Cloudy 22% 4 mph WSW 78%
15-Day Forecast
Today
8/17
Mostly Clear
47%
23°
37°
Tue
8/18
Mostly Clear
19%
23°
37°
Wed
8/19
Clear
14%
22°
38°
Thu
8/20
Mostly Clear
45%
23°
35°
Fri
8/21
Drizzle
51%
21°
36°
Sat
8/22
Drizzle
52%
21°
36°
Sun
8/23
Rain
54%
19°
36°
Mon
8/24
Rain
44%
19°
36°
Tue
8/25
Rain
68%
21°
34°
Wed
8/26
Rain
68%
19°
33°
Thu
8/27
Drizzle
60%
24°
35°
Fri
8/28
Drizzle
60%
23°
34°
Sat
8/29
Drizzle
60%
22°
34°
Sun
8/30
Drizzle
60%
22°
34°
Mon
8/31
Drizzle
60%
22°
33°
58
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
58 AQI 13.2 µg/m³
O3
Ground-level ozone
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 37 58
Tue 56 Moderate 33 56
Wed 55 Moderate 38 55
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 Mon Aug 17, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE743 J/kg
MLCAPE428 J/kg
MUCAPE743 J/kg
SBCIN-242 J/kg
MLCIN-116 J/kg
Lifted Index-2.3
Kinematics
0–6 km Shear6 kt
0–1 km Shear9 kt
Eff. Shear6 kt
0–1 km SRH29
0–3 km SRH107
Eff. SRH107
Storm Motion48° @ 12 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index20.4
Thermo & Levels
PWAT1.68 in
0–3 km LR5.2 °C/km
700–500 LR5.6 °C/km
Total Totals46.2
LCL940 hPa
LFC772 hPa
EL195 hPa
Freezing Lvl16,490 ft