Freeze Warning — Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Butler, IA, Bremer, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Grundy, IA, Black Hawk, 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 9:00 AM

Cass County, Iowa, United States

Last updated: 9:07 PM CDT  ·  Refresh
6°C
Feels like 4°
Clear
▲ 10°  /  ▼ 1°
Wind
6 mph NNW
Humidity
68%
Dew Point
1°
Pressure
29.17 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
7:31 AM
Sunset
6:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cass County is currently clear at 6°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:31AM · Sunset: 6:37PM.

Alerts

Freeze Warning
Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Butler, IA, Bremer, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Grundy, IA, Black Hawk, 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
Expires 9:00 AM
20 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
6°
3%
10 PM
5°
3%
11 PM
4°
3%
12 AM
4°
3%
1 AM
3°
3%
2 AM
3°
3%
3 AM
3°
3%
4 AM
3°
3%
5 AM
3°
3%
6 AM
2°
3%
7 AM
1°
3%
8 AM
2°
3%
9 AM
4°
3%
10 AM
8°
3%
11 AM
9°
3%
12 PM
11°
3%
1 PM
12°
3%
2 PM
13°
3%
3 PM
14°
3%
4 PM
14°
3%
5 PM
13°
3%
6 PM
11°
3%
7 PM
9°
3%
8 PM
9°
3%
7-Day Forecast
Tonight
10° 1°
Clear.
Sat
14° 1°
Clear.
Sun
18° 4°
Clear.
Mon
20° 6°
Partly Cloudy.
Tue
22° 8°
Clear with a 27% chance of rain.
Wed
23° 12°
Clear with a 22% chance of rain.
Thu
26° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 6° Clear 3% 6 mph NNW 68%
10 PM 5° Clear 3% 5 mph NNW 65%
11 PM 4° Clear 3% 4 mph NNW 67%
12 AM 4° Clear 3% 4 mph NW 69%
1 AM 3° Clear 3% 4 mph NW 71%
2 AM 3° Clear 3% 2 mph NW 72%
3 AM 3° Clear 3% 2 mph WNW 74%
4 AM 3° Clear 3% 2 mph SW 74%
5 AM 3° Clear 3% 2 mph SSW 75%
6 AM 2° Clear 3% 4 mph SSW 76%
7 AM 1° Clear 3% 5 mph SSW 76%
8 AM 2° Clear 3% 6 mph SSW 72%
9 AM 4° Clear 3% 8 mph SSW 67%
10 AM 8° Clear 3% 11 mph SSW 58%
11 AM 9° Clear 3% 12 mph SSW 53%
12 PM 11° Clear 3% 13 mph SSW 49%
1 PM 12° Clear 3% 14 mph SSW 45%
2 PM 13° Clear 3% 14 mph SSW 44%
3 PM 14° Clear 3% 14 mph SSW 43%
4 PM 14° Clear 3% 14 mph SSW 43%
5 PM 13° Clear 3% 13 mph SSW 48%
6 PM 11° Clear 3% 12 mph SSW 53%
7 PM 9° Clear 3% 11 mph SSW 58%
8 PM 9° Clear 3% 12 mph SSW 59%
15-Day Forecast
Today
10/16
Clear
3%
1°
10°
Sat
10/17
Clear
3%
1°
14°
Sun
10/18
Clear
3%
4°
18°
Mon
10/19
Partly Cloudy
3%
6°
20°
Tue
10/20
Clear
27%
8°
22°
Wed
10/21
Clear
22%
12°
23°
Thu
10/22
Clear
10%
13°
26°
Fri
10/23
Partly Cloudy
16%
15°
26°
Sat
10/24
Drizzle
54%
11°
22°
Sun
10/25
Drizzle
54%
8°
17°
Mon
10/26
Rain
46%
7°
17°
Tue
10/27
Drizzle
60%
7°
17°
Wed
10/28
Drizzle
60%
7°
17°
Thu
10/29
Clear
60%
8°
18°
Fri
10/30
Drizzle
60%
7°
17°
20
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
14 AQI 2.6 µg/m³
O3
Ground-level ozone
Dominant
20 AQI 23 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 20 Good 20 14
Sun 28 Good 28 21
Mon 30 Good 29 30
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE7 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index20.6
Kinematics
0–6 km Shear39 kt
0–1 km Shear17 kt
Eff. Shear—
0–1 km SRH81
0–3 km SRH76
Eff. SRH—
Storm Motion25° @ 37 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-31.4
Thermo & Levels
PWAT0.28 in
0–3 km LR2.8 °C/km
700–500 LR5.1 °C/km
Total Totals17.4
LCL917 hPa
LFC—
EL—
Freezing Lvl4,409 ft