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: 12:56 AM CDT  ·  Refresh
27°C
Feels like 30°
Mostly Clear
▲ 38°  /  ▼ 23°
Wind
3 mph SSW
Humidity
74%
Dew Point
22°
Pressure
29.39 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
13%
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 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2228 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%
1 AM
26°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
24°
3%
5 AM
23°
3%
6 AM
24°
3%
7 AM
26°
3%
8 AM
28°
3%
9 AM
31°
3%
10 AM
32°
3%
11 AM
33°
3%
12 PM
36°
3%
1 PM
37°
8%
2 PM
37°
12%
3 PM
37°
12%
4 PM
36°
21%
5 PM
35°
21%
6 PM
34°
22%
7 PM
33°
22%
8 PM
30°
22%
9 PM
29°
23%
10 PM
29°
13%
11 PM
28°
9%
7-Day Forecast
Today
38° 23°
Mostly Clear with a 22% chance of rain.
Tue
37° 23°
Mostly Clear with a 26% chance of rain.
Wed
38° 22°
Clear with a 36% chance of rain.
Thu
37° 23°
Rain, 64% chance.
Fri
36° 21°
Rain, 64% chance.
Sat
36° 21°
Clear with a 51% chance of rain.
Sun
36° 19°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Clear 3% 3 mph SSW 74%
1 AM 26° Mostly Clear 3% 4 mph SSW 72%
2 AM 26° Mostly Clear 3% 4 mph SSW 74%
3 AM 26° Mostly Clear 3% 4 mph SW 75%
4 AM 24° Mostly Clear 3% 4 mph SW 77%
5 AM 23° Mostly Clear 3% 4 mph SW 79%
6 AM 24° Mostly Clear 3% 4 mph SW 80%
7 AM 26° Mostly Clear 3% 6 mph WSW 73%
8 AM 28° Mostly Clear 3% 6 mph W 66%
9 AM 31° Mostly Clear 3% 6 mph W 60%
10 AM 32° Mostly Clear 3% 7 mph W 54%
11 AM 33° Mostly Clear 3% 7 mph W 48%
12 PM 36° Mostly Clear 3% 7 mph W 42%
1 PM 37° Mostly Clear 8% 8 mph W 40%
2 PM 37° Mostly Clear 12% 8 mph W 38%
3 PM 37° Mostly Clear 12% 8 mph W 37%
4 PM 36° Partly Cloudy 21% 8 mph W 41%
5 PM 35° Partly Cloudy 21% 7 mph W 46%
6 PM 34° Mostly Cloudy 22% 6 mph W 51%
7 PM 33° Partly Cloudy 22% 6 mph WSW 55%
8 PM 30° Partly Cloudy 22% 6 mph SW 60%
9 PM 29° Mostly Clear 23% 7 mph SW 64%
10 PM 29° Partly Cloudy 13% 6 mph SW 67%
11 PM 28° Partly Cloudy 9% 5 mph WSW 70%
15-Day Forecast
Today
8/17
Mostly Clear
22%
23°
38°
Tue
8/18
Mostly Clear
26%
23°
37°
Wed
8/19
Clear
36%
22°
38°
Thu
8/20
Rain
64%
23°
37°
Fri
8/21
Rain
64%
21°
36°
Sat
8/22
Clear
51%
21°
36°
Sun
8/23
Rain
28%
19°
36°
Mon
8/24
Rain
44%
19°
36°
Tue
8/25
Rain
68%
21°
34°
Wed
8/26
Rain
68%
19°
35°
Thu
8/27
Drizzle
60%
24°
36°
Fri
8/28
Drizzle
60%
23°
35°
Sat
8/29
Drizzle
60%
23°
35°
Sun
8/30
Drizzle
60%
23°
34°
Mon
8/31
Drizzle
60%
23°
34°
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, 04:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE941 J/kg
MLCAPE992 J/kg
MUCAPE1421 J/kg
SBCIN-202 J/kg
MLCIN-93 J/kg
Lifted Index-3.4
Kinematics
0–6 km Shear6 kt
0–1 km Shear16 kt
Eff. Shear9 kt
0–1 km SRH82
0–3 km SRH55
Eff. SRH55
Storm Motion39° @ 10 kt
0–1 km EHI0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index19.8
Thermo & Levels
PWAT1.69 in
0–3 km LR5.4 °C/km
700–500 LR6.1 °C/km
Total Totals48.0
LCL923 hPa
LFC784 hPa
EL182 hPa
Freezing Lvl15,696 ft