Extreme Heat Warning — Doniphan, KS, Buchanan, MO, Clinton, MO, Caldwell, MO, Ray, MO, Carroll, MO, Lafayette, MO, Saline, MO, Howard, MO, Johnson, MO, Pettis, MO, Cooper, MO, Henry, MO 8:00 PM

Johnson County, Missouri, United States

Last updated: 7:39 AM CDT  ·  Refresh
24°C
Feels like 26°
Mostly Clear
▲ 36°  /  ▼ 21°
Wind
5 mph ENE
Humidity
78%
Dew Point
21°
Pressure
29.12 inHg
Visibility
10 mi
UV Index
2.5
Cloud Cover
29%
Sunrise
6:48 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Johnson County is currently mostly clear at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2217 J/kg) — isolated convective development possible. Sunrise: 6:48AM · Sunset: 7:37PM.

Alerts

Extreme Heat Warning
Doniphan, KS, Buchanan, MO, Clinton, MO, Caldwell, MO, Ray, MO, Carroll, MO, Lafayette, MO, Saline, MO, Howard, MO, Johnson, MO, Pettis, MO, Cooper, MO, Henry, MO
Expires 8:00 PM
46 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
15%
8 AM
24°
31%
9 AM
27°
23%
10 AM
29°
25%
11 AM
32°
25%
12 PM
33°
23%
1 PM
36°
17%
2 PM
36°
22%
3 PM
36°
23%
4 PM
35°
31%
5 PM
34°
32%
6 PM
33°
32%
7 PM
31°
33%
8 PM
29°
33%
9 PM
26°
34%
10 PM
25°
26%
11 PM
24°
23%
12 AM
24°
15%
1 AM
24°
8%
2 AM
23°
8%
3 AM
23°
8%
4 AM
23°
9%
5 AM
21°
5%
6 AM
21°
5%
7-Day Forecast
Today
36° 21°
Partly Cloudy with a 33% chance of rain.
Mon
34° 21°
Partly Cloudy.
Tue
42° 19°
Mostly Clear.
Wed
38° 21°
Mostly Cloudy with a 81% chance of rain.
Thu
34° 18°
Rain, 90% chance.
Fri
37° 16°
Rain, 61% chance.
Sat
35° 20°
Rain, 83% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 15% 5 mph ENE 78%
8 AM 24° Partly Cloudy 31% 7 mph E 68%
9 AM 27° Partly Cloudy 23% 8 mph E 61%
10 AM 29° Partly Cloudy 25% 8 mph E 55%
11 AM 32° Partly Cloudy 25% 7 mph E 49%
12 PM 33° Mostly Clear 23% 8 mph E 43%
1 PM 36° Mostly Clear 17% 8 mph E 41%
2 PM 36° Partly Cloudy 22% 10 mph ENE 41%
3 PM 36° Partly Cloudy 23% 11 mph ENE 41%
4 PM 35° Mostly Cloudy 31% 11 mph ENE 43%
5 PM 34° Mostly Cloudy 32% 11 mph E 46%
6 PM 33° Mostly Cloudy 32% 10 mph E 49%
7 PM 31° Partly Cloudy 33% 9 mph E 55%
8 PM 29° Partly Cloudy 33% 8 mph E 62%
9 PM 26° Partly Cloudy 34% 7 mph E 68%
10 PM 25° Mostly Clear 26% 6 mph E 70%
11 PM 24° Mostly Clear 23% 7 mph E 70%
12 AM 24° Partly Cloudy 15% 8 mph E 70%
1 AM 24° Partly Cloudy 8% 8 mph E 70%
2 AM 23° Partly Cloudy 8% 8 mph E 70%
3 AM 23° Partly Cloudy 8% 8 mph ESE 69%
4 AM 23° Partly Cloudy 9% 8 mph ESE 69%
5 AM 21° Partly Cloudy 5% 8 mph ESE 70%
6 AM 21° Partly Cloudy 5% 8 mph ESE 70%
15-Day Forecast
Today
9/6
Partly Cloudy
33%
21°
36°
Mon
9/7
Partly Cloudy
8%
21°
34°
Tue
9/8
Mostly Clear
6%
19°
42°
Wed
9/9
Mostly Cloudy
81%
21°
38°
Thu
9/10
Rain
90%
18°
34°
Fri
9/11
Rain
61%
16°
37°
Sat
9/12
Rain
83%
20°
35°
Sun
9/13
Rain
80%
16°
31°
Mon
9/14
Drizzle
54%
13°
28°
Tue
9/15
Drizzle
56%
8°
29°
Wed
9/16
Drizzle
60%
8°
31°
Thu
9/17
Clear
60%
17°
32°
Fri
9/18
Drizzle
60%
17°
32°
Sat
9/19
Drizzle
60%
17°
32°
Sun
9/20
Drizzle
60%
17°
33°
46
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
40 AQI 7.3 µg/m³
O3
Ground-level ozone
Dominant
46 AQI 50 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 46 Good 46 40
Tue 51 Moderate 41 51
Wed 52 Moderate 50 52
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 Sun Sep 6, 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
SBCAPE382 J/kg
MLCAPE463 J/kg
MUCAPE868 J/kg
SBCIN-502 J/kg
MLCIN-290 J/kg
Lifted Index-2.5
Kinematics
0–6 km Shear11 kt
0–1 km Shear6 kt
Eff. Shear22 kt
0–1 km SRH8
0–3 km SRH74
Eff. SRH106
Storm Motion51° @ 19 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.0
K-Index34.3
Thermo & Levels
PWAT1.55 in
0–3 km LR4.7 °C/km
700–500 LR6.6 °C/km
Total Totals50.4
LCL938 hPa
LFC646 hPa
EL248 hPa
Freezing Lvl14,350 ft