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

Union County, Iowa, United States

Last updated: 9:45 PM CDT  ·  Refresh
6°C
Feels like 3°
Clear
▲ 11°  /  ▼ 2°
Wind
8 mph NNW
Humidity
72%
Dew Point
0°
Pressure
29.19 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
7:28 AM
Sunset
6:34 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently clear at 6°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:28AM · Sunset: 6:34PM.

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
21 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
4°
3%
2 AM
3°
3%
3 AM
3°
3%
4 AM
3°
3%
5 AM
2°
3%
6 AM
2°
3%
7 AM
2°
3%
8 AM
4°
3%
9 AM
8°
3%
10 AM
9°
3%
11 AM
11°
3%
12 PM
12°
3%
1 PM
14°
3%
2 PM
14°
3%
3 PM
15°
3%
4 PM
14°
3%
5 PM
12°
3%
6 PM
11°
3%
7 PM
10°
3%
8 PM
9°
3%
7-Day Forecast
Tonight
11° 2°
Clear.
Sat
15° 2°
Clear.
Sun
18° 4°
Clear.
Mon
21° 6°
Partly Cloudy.
Tue
22° 8°
Mostly Clear.
Wed
24° 11°
Mostly Clear.
Thu
26° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 6° Clear 3% 8 mph NNW 72%
10 PM 5° Clear 3% 7 mph NNW 69%
11 PM 4° Clear 3% 6 mph NNW 70%
12 AM 4° Clear 3% 6 mph NNW 71%
1 AM 4° Clear 3% 5 mph NW 72%
2 AM 3° Clear 3% 4 mph NW 73%
3 AM 3° Clear 3% 4 mph NW 73%
4 AM 3° Clear 3% 3 mph NW 73%
5 AM 2° Clear 3% 2 mph W 73%
6 AM 2° Clear 3% 4 mph SW 73%
7 AM 2° Clear 3% 5 mph SW 71%
8 AM 4° Clear 3% 6 mph SSW 67%
9 AM 8° Clear 3% 8 mph SSW 60%
10 AM 9° Clear 3% 10 mph SSW 55%
11 AM 11° Clear 3% 11 mph SW 51%
12 PM 12° Clear 3% 12 mph SW 48%
1 PM 14° Clear 3% 12 mph SW 46%
2 PM 14° Clear 3% 12 mph SSW 46%
3 PM 15° Clear 3% 12 mph SSW 45%
4 PM 14° Clear 3% 12 mph SSW 50%
5 PM 12° Clear 3% 11 mph SSW 56%
6 PM 11° Clear 3% 10 mph SSW 62%
7 PM 10° Clear 3% 10 mph SSW 64%
8 PM 9° Clear 3% 11 mph SSW 64%
15-Day Forecast
Today
10/16
Clear
3%
2°
11°
Sat
10/17
Clear
3%
2°
15°
Sun
10/18
Clear
3%
4°
18°
Mon
10/19
Partly Cloudy
3%
6°
21°
Tue
10/20
Mostly Clear
14%
8°
22°
Wed
10/21
Mostly Clear
18%
11°
24°
Thu
10/22
Clear
15%
13°
26°
Fri
10/23
Mostly Cloudy
16%
14°
26°
Sat
10/24
Drizzle
54%
12°
23°
Sun
10/25
Rain
72%
8°
18°
Mon
10/26
Drizzle
60%
7°
17°
Tue
10/27
Clear
60%
7°
17°
Wed
10/28
Drizzle
60%
7°
18°
Thu
10/29
Drizzle
60%
8°
18°
Fri
10/30
Drizzle
60%
7°
18°
21
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
8 AQI 1.6 µg/m³
O3
Ground-level ozone
Dominant
21 AQI 24 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 21 Good 21 8
Sun 26 Good 26 18
Mon 41 Good 28 41
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 Oct 17, 01:00'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
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index21.9
Kinematics
0–6 km Shear40 kt
0–1 km Shear14 kt
Eff. Shear—
0–1 km SRH57
0–3 km SRH85
Eff. SRH—
Storm Motion27° @ 34 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-22.1
Thermo & Levels
PWAT0.34 in
0–3 km LR2.8 °C/km
700–500 LR4.8 °C/km
Total Totals23.3
LCL909 hPa
LFC988 hPa
EL988 hPa
Freezing Lvl3,691 ft