Extreme Heat Warning — Republic, KS, Washington, KS, Marshall, KS, Nemaha, KS, Brown, KS, Cloud, KS, Clay, KS, Riley, KS, Pottawatomie, KS, Jackson, KS, Jefferson, KS, Ottawa, KS, Dickinson, KS, Geary, KS, Morris, KS, Wabaunsee, KS, Shawnee, KS, Douglas, KS, Lyon, KS, Osage, KS, Franklin, KS, Coffey, KS, Anderson, KS 7:00 PM

Jefferson County, Kansas, United States

Last updated: 8:29 AM CDT  ·  Refresh
24°C
Feels like 24°
Mostly Clear
▲ 37°  /  ▼ 22°
Wind
10 mph SE
Humidity
78%
Dew Point
20°
Pressure
28.90 inHg
Visibility
10 mi
UV Index
4.1
Cloud Cover
18%
Sunrise
6:55 AM
Sunset
7:42 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly clear at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1778 J/kg) — isolated convective development possible. Sunrise: 6:55AM · Sunset: 7:42PM.

Alerts

Extreme Heat Warning
Republic, KS, Washington, KS, Marshall, KS, Nemaha, KS, Brown, KS, Cloud, KS, Clay, KS, Riley, KS, Pottawatomie, KS, Jackson, KS, Jefferson, KS, Ottawa, KS, Dickinson, KS, Geary, KS, Morris, KS, Wabaunsee, KS, Shawnee, KS, Douglas, KS, Lyon, KS, Osage, KS, Franklin, KS, Coffey, KS, Anderson, KS
Expires 7:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
13%
9 AM
24°
23%
10 AM
26°
21%
11 AM
28°
14%
12 PM
30°
14%
1 PM
34°
3%
2 PM
35°
3%
3 PM
36°
3%
4 PM
36°
3%
5 PM
35°
3%
6 PM
33°
3%
7 PM
32°
3%
8 PM
31°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
24°
3%
4 AM
24°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
23°
3%
7-Day Forecast
Today
37° 22°
Mostly Clear.
Tue
42° 23°
Mostly Clear with a 21% chance of rain.
Wed
36° 21°
Drizzle, 55% chance.
Thu
33° 16°
Mostly Cloudy with a 57% chance of rain.
Fri
37° 18°
Drizzle, 64% chance.
Sat
35° 16°
Rain, 82% chance.
Sun
40° 21°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 13% 10 mph SE 78%
9 AM 24° Mostly Clear 23% 13 mph SE 68%
10 AM 26° Mostly Clear 21% 13 mph SE 62%
11 AM 28° Mostly Clear 14% 13 mph SE 57%
12 PM 30° Clear 14% 12 mph SSE 52%
1 PM 34° Clear 3% 12 mph SSE 48%
2 PM 35° Clear 3% 12 mph SSE 45%
3 PM 36° Clear 3% 12 mph SSE 43%
4 PM 36° Clear 3% 11 mph SE 43%
5 PM 35° Mostly Clear 3% 12 mph SE 45%
6 PM 33° Partly Cloudy 3% 11 mph SE 48%
7 PM 32° Partly Cloudy 3% 11 mph SE 52%
8 PM 31° Partly Cloudy 3% 12 mph SE 55%
9 PM 29° Partly Cloudy 3% 12 mph SE 58%
10 PM 28° Partly Cloudy 3% 13 mph SE 59%
11 PM 27° Partly Cloudy 3% 13 mph SE 60%
12 AM 27° Partly Cloudy 3% 12 mph SE 60%
1 AM 26° Mostly Clear 3% 12 mph SE 62%
2 AM 26° Mostly Clear 3% 11 mph SSE 64%
3 AM 24° Clear 3% 11 mph SSE 66%
4 AM 24° Clear 3% 11 mph SSE 68%
5 AM 23° Mostly Clear 3% 11 mph SSE 69%
6 AM 23° Mostly Clear 3% 11 mph SSE 70%
7 AM 23° Mostly Clear 3% 12 mph SSE 68%
15-Day Forecast
Today
9/7
Mostly Clear
14%
22°
37°
Tue
9/8
Mostly Clear
21%
23°
42°
Wed
9/9
Drizzle
55%
21°
36°
Thu
9/10
Mostly Cloudy
57%
16°
33°
Fri
9/11
Drizzle
64%
18°
37°
Sat
9/12
Rain
82%
16°
35°
Sun
9/13
Drizzle
71%
21°
40°
Mon
9/14
Rain
69%
17°
31°
Tue
9/15
Drizzle
44%
11°
29°
Wed
9/16
Drizzle
51%
4°
28°
Thu
9/17
Drizzle
60%
10°
28°
Fri
9/18
Drizzle
60%
15°
27°
Sat
9/19
Drizzle
60%
15°
29°
Sun
9/20
Clear
60%
14°
28°
Mon
9/21
Clear
60%
14°
29°
54
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
54 AQI 10.7 µg/m³
O3
Ground-level ozone
42 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 54 Moderate 42 54
Wed 57 Moderate 48 57
Thu 38 Good 38 35
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 Sep 7, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE57 J/kg
MLCAPE62 J/kg
MUCAPE256 J/kg
SBCIN-428 J/kg
MLCIN-385 J/kg
Lifted Index0.4
Kinematics
0–6 km Shear26 kt
0–1 km Shear19 kt
Eff. Shear36 kt
0–1 km SRH159
0–3 km SRH272
Eff. SRH174
Storm Motion58° @ 12 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.8
K-Index33.6
Thermo & Levels
PWAT1.55 in
0–3 km LR4.8 °C/km
700–500 LR5.6 °C/km
Total Totals45.8
LCL923 hPa
LFC640 hPa
EL511 hPa
Freezing Lvl14,432 ft