Excessive Heat Watch 9:00 PM Excessive Heat Warning — Emmet, IA, Kossuth, IA, Palo Alto, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Marshall, IA, Tama, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Adams, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Taylor, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA, Winnebago, IA, Worth, IA, Hancock, IA, Cerro Gordo, IA, Franklin, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA 10:00 PM

Cass County, Iowa, United States

Last updated: 3:32 PM CDT  ·  Refresh
31°C
Feels like 38°
Mostly Clear
▲ 33°  /  ▼ 24°
Wind
21 mph S
Humidity
71%
Dew Point
25°
Pressure
28.40 inHg
Visibility
10 mi
UV Index
8.7
Cloud Cover
29%
Sunrise
5:49 AM
Sunset
8:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cass County is currently mostly clear at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4603 J/kg) — isolated convective development possible. Sunrise: 5:49AM · Sunset: 8:56PM.

Alerts

Excessive Heat Watch
Expires 9:00 PM
Excessive Heat Warning
Emmet, IA, Kossuth, IA, Palo Alto, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Marshall, IA, Tama, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Adams, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Taylor, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA, Winnebago, IA, Worth, IA, Hancock, IA, Cerro Gordo, IA, Franklin, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA
Expires 10:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
5%
4 PM
32°
3%
5 PM
33°
3%
6 PM
32°
12%
7 PM
32°
17%
8 PM
31°
18%
9 PM
30°
5%
10 PM
29°
5%
11 PM
29°
5%
12 AM
28°
5%
1 AM
27°
5%
2 AM
26°
5%
3 AM
26°
5%
4 AM
25°
5%
5 AM
24°
9%
6 AM
24°
9%
7 AM
24°
9%
8 AM
26°
9%
9 AM
27°
10%
10 AM
29°
7%
11 AM
29°
7%
12 PM
30°
7%
1 PM
31°
10%
2 PM
31°
18%
7-Day Forecast
Today
33° 24°
Partly Cloudy.
Tue
34° 24°
Partly Cloudy with a 23% chance of rain.
Wed
35° 24°
Partly Cloudy with a 54% chance of rain.
Thu
34° 23°
Partly Cloudy with a 71% chance of rain.
Fri
32° 23°
Clear with a 60% chance of rain.
Sat
32° 21°
Thunderstorm, 90% chance.
Sun
29° 20°
Clear with a 81% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 31° Mostly Clear 5% 21 mph S 71%
4 PM 32° Mostly Clear 3% 21 mph S 72%
5 PM 33° Partly Cloudy 3% 21 mph S 73%
6 PM 32° Partly Cloudy 12% 19 mph S 75%
7 PM 32° Mostly Cloudy 17% 18 mph S 77%
8 PM 31° Mostly Cloudy 18% 16 mph S 78%
9 PM 30° Mostly Cloudy 5% 16 mph S 78%
10 PM 29° Mostly Cloudy 5% 17 mph S 78%
11 PM 29° Overcast 5% 17 mph S 78%
12 AM 28° Overcast 5% 16 mph S 78%
1 AM 27° Mostly Cloudy 5% 15 mph SSW 77%
2 AM 26° Mostly Cloudy 5% 12 mph SSW 76%
3 AM 26° Mostly Cloudy 5% 10 mph SSW 76%
4 AM 25° Mostly Cloudy 5% 9 mph S 77%
5 AM 24° Mostly Cloudy 9% 10 mph S 78%
6 AM 24° Mostly Cloudy 9% 12 mph S 78%
7 AM 24° Partly Cloudy 9% 13 mph S 76%
8 AM 26° Partly Cloudy 9% 15 mph S 72%
9 AM 27° Mostly Clear 10% 16 mph SSW 68%
10 AM 29° Mostly Clear 7% 16 mph SSW 66%
11 AM 29° Partly Cloudy 7% 16 mph SSW 64%
12 PM 30° Partly Cloudy 7% 16 mph SSW 62%
1 PM 31° Partly Cloudy 10% 16 mph SSW 61%
2 PM 31° Partly Cloudy 18% 16 mph SSW 61%
15-Day Forecast
Today
6/29
Partly Cloudy
12%
24°
33°
Tue
6/30
Partly Cloudy
23%
24°
34°
Wed
7/1
Partly Cloudy
54%
24°
35°
Thu
7/2
Partly Cloudy
71%
23°
34°
Fri
7/3
Clear
60%
23°
32°
Sat
7/4
Thunderstorm
90%
21°
32°
Sun
7/5
Clear
81%
20°
29°
Mon
7/6
Clear
60%
19°
29°
Tue
7/7
Drizzle
60%
19°
31°
Wed
7/8
Drizzle
60%
20°
32°
Thu
7/9
Drizzle
60%
21°
30°
Fri
7/10
Drizzle
60%
20°
29°
Sat
7/11
Drizzle
60%
19°
29°
Sun
7/12
Drizzle
60%
19°
29°
Mon
7/13
Drizzle
60%
19°
30°
51
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
51 AQI 9.1 µg/m³
O3
Ground-level ozone
30 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 51 Moderate 30 51
Wed 78 Moderate 37 78
Thu 55 Moderate 34 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 Jun 29, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE5436 J/kg
MLCAPE3538 J/kg
MUCAPE5436 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-9.6
Kinematics
0–6 km Shear32 kt
0–1 km Shear11 kt
Eff. Shear25 kt
0–1 km SRH19
0–3 km SRH-27
Eff. SRH-27
Storm Motion202° @ 44 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado0.5
STP (eff)0.0
Supercell0.0
K-Index33.8
Thermo & Levels
PWAT1.68 in
0–3 km LR6.0 °C/km
700–500 LR7.7 °C/km
Total Totals49.5
LCL879 hPa
LFC962 hPa
EL125 hPa
Freezing Lvl14,984 ft