Excessive Heat Watch 8:00 PM

Henry County, Missouri, United States

Last updated: 3:48 AM CDT  ·  Refresh
21°C
Feels like 23°
Clear
▲ 32°  /  ▼ 22°
Wind
4 mph S
Humidity
93%
Dew Point
19°
Pressure
29.22 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
7%
Sunrise
6:23 AM
Sunset
8:17 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Henry County is currently clear at 21°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2989 J/kg) — isolated convective development possible. Sunrise: 6:23AM · Sunset: 8:17PM.

Alerts

Excessive Heat Watch
Expires 8:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
3%
4 AM
21°
3%
5 AM
18°
3%
6 AM
18°
3%
7 AM
20°
3%
8 AM
22°
3%
9 AM
22°
3%
10 AM
23°
3%
11 AM
25°
3%
12 PM
27°
3%
1 PM
29°
3%
2 PM
30°
3%
3 PM
31°
3%
4 PM
31°
3%
5 PM
32°
3%
6 PM
31°
3%
7 PM
29°
3%
8 PM
28°
8%
9 PM
27°
9%
10 PM
26°
9%
11 PM
26°
9%
12 AM
26°
9%
1 AM
26°
9%
2 AM
25°
9%
7-Day Forecast
Today
32° 22°
Mostly Clear.
Sun
36° 22°
Mostly Clear.
Mon
38° 24°
Clear.
Tue
36° 25°
Mostly Cloudy with a 37% chance of rain.
Wed
37° 21°
Drizzle, 51% chance.
Thu
31° 20°
Rain, 82% chance.
Fri
28° 18°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Clear 3% 4 mph S 93%
4 AM 21° Clear 3% 4 mph SSW 93%
5 AM 18° Clear 3% 3 mph SSW 94%
6 AM 18° Mostly Clear 3% 4 mph S 95%
7 AM 20° Mostly Clear 3% 4 mph SSW 91%
8 AM 22° Mostly Clear 3% 4 mph SW 85%
9 AM 22° Mostly Clear 3% 4 mph WSW 78%
10 AM 23° Mostly Clear 3% 3 mph SW 73%
11 AM 25° Mostly Clear 3% 3 mph SSE 69%
12 PM 27° Mostly Clear 3% 4 mph SE 64%
1 PM 29° Mostly Clear 3% 4 mph SE 60%
2 PM 30° Mostly Clear 3% 4 mph SE 57%
3 PM 31° Mostly Clear 3% 5 mph SE 54%
4 PM 31° Mostly Clear 3% 5 mph SE 55%
5 PM 32° Mostly Clear 3% 6 mph SE 58%
6 PM 31° Mostly Clear 3% 6 mph SE 62%
7 PM 29° Mostly Clear 3% 6 mph SE 65%
8 PM 28° Mostly Clear 8% 7 mph SE 67%
9 PM 27° Clear 9% 7 mph SE 70%
10 PM 26° Mostly Clear 9% 8 mph SE 72%
11 PM 26° Mostly Clear 9% 8 mph SSE 72%
12 AM 26° Mostly Clear 9% 9 mph SSE 72%
1 AM 26° Partly Cloudy 9% 9 mph SSE 74%
2 AM 25° Partly Cloudy 9% 9 mph SSE 76%
15-Day Forecast
Today
8/8
Mostly Clear
9%
22°
32°
Sun
8/9
Mostly Clear
10%
22°
36°
Mon
8/10
Clear
7%
24°
38°
Tue
8/11
Mostly Cloudy
37%
25°
36°
Wed
8/12
Drizzle
51%
21°
37°
Thu
8/13
Rain
82%
20°
31°
Fri
8/14
Rain
82%
18°
28°
Sat
8/15
Rain
82%
16°
27°
Sun
8/16
Drizzle
44%
16°
29°
Mon
8/17
Rain
68%
18°
31°
Tue
8/18
Drizzle
60%
22°
34°
Wed
8/19
Drizzle
60%
22°
34°
Thu
8/20
Drizzle
60%
22°
34°
Fri
8/21
Drizzle
60%
22°
34°
Sat
8/22
Clear
60%
21°
33°
52
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
52 AQI 9.7 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 36 52
Sun 42 Good 37 42
Mon 53 Moderate 38 53
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 Sat Aug 8, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE71 J/kg
MLCAPE211 J/kg
MUCAPE470 J/kg
SBCIN-756 J/kg
MLCIN0 J/kg
Lifted Index-1.1
Kinematics
0–6 km Shear36 kt
0–1 km Shear4 kt
Eff. Shear—
0–1 km SRH29
0–3 km SRH-74
Eff. SRH—
Storm Motion303° @ 19 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index10.3
Thermo & Levels
PWAT1.04 in
0–3 km LR3.0 °C/km
700–500 LR7.8 °C/km
Total Totals42.5
LCL973 hPa
LFC550 hPa
EL411 hPa
Freezing Lvl14,446 ft