Heat Advisory — Harper, OK, Woods, OK, Alfalfa, OK, Grant, OK, Kay, OK, Ellis, OK, Woodward, OK, Major, OK, Garfield, OK, Noble, OK, Roger Mills, OK, Dewey, OK, Custer, OK, Blaine, OK, Kingfisher, OK, Logan, OK, Payne, OK, Beckham, OK, Washita, OK, Caddo, OK, Canadian, OK, Oklahoma, OK, Lincoln, OK, Grady, OK, McClain, OK, Cleveland, OK, Pottawatomie, OK, Seminole, OK, Hughes, OK, Harmon, OK, Greer, OK, Kiowa, OK, Jackson, OK, Tillman, OK, Comanche, OK, Stephens, OK, Garvin, OK, Murray, OK, Pontotoc, OK, Coal, OK, Cotton, OK, Jefferson, OK, Carter, OK, Johnston, OK, Atoka, OK, Love, OK, Marshall, OK, Bryan, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX 8:00 PM

Jefferson County, Oklahoma, United States

Last updated: 4:14 AM CDT  ·  Refresh
27°C
Feels like 29°
Clear
▲ 39°  /  ▼ 26°
Wind
10 mph S
Humidity
69%
Dew Point
21°
Pressure
29.04 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:50 AM
Sunset
8:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2019 J/kg) — isolated convective development possible. Sunrise: 6:50AM · Sunset: 8:22PM.

Alerts

Heat Advisory
Harper, OK, Woods, OK, Alfalfa, OK, Grant, OK, Kay, OK, Ellis, OK, Woodward, OK, Major, OK, Garfield, OK, Noble, OK, Roger Mills, OK, Dewey, OK, Custer, OK, Blaine, OK, Kingfisher, OK, Logan, OK, Payne, OK, Beckham, OK, Washita, OK, Caddo, OK, Canadian, OK, Oklahoma, OK, Lincoln, OK, Grady, OK, McClain, OK, Cleveland, OK, Pottawatomie, OK, Seminole, OK, Hughes, OK, Harmon, OK, Greer, OK, Kiowa, OK, Jackson, OK, Tillman, OK, Comanche, OK, Stephens, OK, Garvin, OK, Murray, OK, Pontotoc, OK, Coal, OK, Cotton, OK, Jefferson, OK, Carter, OK, Johnston, OK, Atoka, OK, Love, OK, Marshall, OK, Bryan, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX
Expires 8:00 PM
43 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
3%
5 AM
27°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
31°
3%
11 AM
32°
3%
12 PM
34°
3%
1 PM
36°
3%
2 PM
37°
3%
3 PM
38°
3%
4 PM
38°
3%
5 PM
38°
3%
6 PM
39°
3%
7 PM
38°
3%
8 PM
37°
3%
9 PM
35°
3%
10 PM
33°
3%
11 PM
32°
3%
12 AM
31°
3%
1 AM
31°
3%
2 AM
31°
3%
3 AM
30°
3%
7-Day Forecast
Today
39° 26°
Clear.
Wed
41° 26°
Clear.
Thu
41° 24°
Clear.
Fri
41° 24°
Clear.
Sat
42° 25°
Clear.
Sun
42° 23°
Clear.
Mon
42° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 3% 10 mph S 69%
5 AM 27° Clear 3% 10 mph S 69%
6 AM 24° Clear 3% 9 mph S 72%
7 AM 24° Clear 3% 9 mph S 72%
8 AM 26° Clear 3% 12 mph SSW 66%
9 AM 28° Clear 3% 14 mph SSW 58%
10 AM 31° Clear 3% 15 mph SW 50%
11 AM 32° Clear 3% 14 mph SW 44%
12 PM 34° Mostly Clear 3% 14 mph SW 38%
1 PM 36° Mostly Clear 3% 13 mph SSW 34%
2 PM 37° Mostly Clear 3% 13 mph SSW 31%
3 PM 38° Mostly Clear 3% 13 mph SSW 29%
4 PM 38° Mostly Clear 3% 14 mph SSW 27%
5 PM 38° Mostly Clear 3% 14 mph SSW 27%
6 PM 39° Clear 3% 15 mph SSW 27%
7 PM 38° Clear 3% 15 mph S 28%
8 PM 37° Clear 3% 13 mph S 30%
9 PM 35° Clear 3% 12 mph S 33%
10 PM 33° Clear 3% 12 mph S 35%
11 PM 32° Clear 3% 13 mph S 36%
12 AM 31° Clear 3% 14 mph S 38%
1 AM 31° Clear 3% 14 mph S 40%
2 AM 31° Clear 3% 14 mph S 43%
3 AM 30° Clear 3% 14 mph S 46%
15-Day Forecast
Today
8/11
Clear
3%
26°
39°
Wed
8/12
Clear
3%
26°
41°
Thu
8/13
Clear
3%
24°
41°
Fri
8/14
Clear
3%
24°
41°
Sat
8/15
Clear
8%
25°
42°
Sun
8/16
Clear
8%
23°
42°
Mon
8/17
Clear
8%
24°
42°
Tue
8/18
Drizzle
43%
24°
42°
Wed
8/19
Clear
44%
25°
42°
Thu
8/20
Clear
19%
24°
42°
Fri
8/21
Drizzle
60%
26°
42°
Sat
8/22
Drizzle
60%
26°
40°
Sun
8/23
Clear
60%
26°
40°
Mon
8/24
Drizzle
60%
26°
39°
Tue
8/25
Drizzle
60%
26°
39°
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
27 AQI 4.8 µg/m³
O3
Ground-level ozone
Dominant
43 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 43 Good 43 27
Wed 52 Moderate 36 52
Thu 46 Good 34 46
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 Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE978 J/kg
MLCAPE1050 J/kg
MUCAPE1586 J/kg
SBCIN-285 J/kg
MLCIN0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear10 kt
0–1 km Shear14 kt
Eff. Shear16 kt
0–1 km SRH3
0–3 km SRH140
Eff. SRH157
Storm Motion153° @ 18 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.9
Thermo & Levels
PWAT1.61 in
0–3 km LR5.7 °C/km
700–500 LR5.7 °C/km
Total Totals46.7
LCL901 hPa
LFC703 hPa
EL193 hPa
Freezing Lvl15,659 ft