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

Story County, Iowa, United States

Last updated: 9:06 PM CDT  ·  Refresh
43°F
Feels like 39°
Clear
▲ 52°  /  ▼ 35°
Wind
7 mph NNW
Humidity
73%
Dew Point
35°
Pressure
29.44 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
2%
Sunrise
7:26 AM
Sunset
6:30 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Story County is currently clear at 43°F. Dry conditions are expected through the next 24 hours. Sunrise: 7:26AM · Sunset: 6:30PM.

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
43°
3%
10 PM
42°
3%
11 PM
41°
3%
12 AM
40°
3%
1 AM
39°
3%
2 AM
38°
3%
3 AM
38°
3%
4 AM
37°
3%
5 AM
36°
3%
6 AM
35°
3%
7 AM
35°
3%
8 AM
37°
3%
9 AM
41°
3%
10 AM
46°
3%
11 AM
49°
3%
12 PM
52°
3%
1 PM
54°
3%
2 PM
57°
3%
3 PM
58°
3%
4 PM
58°
3%
5 PM
57°
3%
6 PM
51°
3%
7 PM
50°
3%
8 PM
49°
3%
7-Day Forecast
Tonight
52° 35°
Clear.
Sat
59° 35°
Clear.
Sun
65° 40°
Clear.
Mon
69° 43°
Haze.
Tue
71° 47°
Mostly Clear.
Wed
75° 52°
Mostly Clear.
Thu
79° 54°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 43° Clear 3% 7 mph NNW 73%
10 PM 42° Clear 3% 6 mph NNW 74%
11 PM 41° Clear 3% 5 mph NNW 75%
12 AM 40° Clear 3% 5 mph NNW 77%
1 AM 39° Clear 3% 4 mph NNW 78%
2 AM 38° Clear 3% 3 mph NNW 79%
3 AM 38° Clear 3% 2 mph NW 80%
4 AM 37° Clear 3% 2 mph W 80%
5 AM 36° Clear 3% 2 mph SW 80%
6 AM 35° Clear 3% 4 mph SSW 81%
7 AM 35° Clear 3% 5 mph S 81%
8 AM 37° Clear 3% 6 mph SSW 77%
9 AM 41° Clear 3% 8 mph SSW 71%
10 AM 46° Clear 3% 10 mph SSW 65%
11 AM 49° Clear 3% 11 mph SSW 59%
12 PM 52° Clear 3% 12 mph SSW 54%
1 PM 54° Clear 3% 13 mph SW 49%
2 PM 57° Clear 3% 13 mph SSW 48%
3 PM 58° Clear 3% 13 mph SSW 46%
4 PM 58° Clear 3% 13 mph SSW 47%
5 PM 57° Clear 3% 12 mph SSW 52%
6 PM 51° Clear 3% 11 mph SSW 57%
7 PM 50° Clear 3% 11 mph SSW 61%
8 PM 49° Clear 3% 11 mph SSW 63%
15-Day Forecast
Today
10/16
Clear
3%
35°
52°
Sat
10/17
Clear
3%
35°
59°
Sun
10/18
Clear
3%
40°
65°
Mon
10/19
Haze
3%
43°
69°
Tue
10/20
Mostly Clear
14%
47°
71°
Wed
10/21
Mostly Clear
18%
52°
75°
Thu
10/22
Clear
7%
54°
79°
Fri
10/23
Mostly Clear
8%
57°
78°
Sat
10/24
Drizzle
54%
52°
73°
Sun
10/25
Drizzle
54%
48°
66°
Mon
10/26
Rain
60%
46°
62°
Tue
10/27
Drizzle
60%
44°
61°
Wed
10/28
Drizzle
60%
44°
63°
Thu
10/29
Drizzle
60%
46°
64°
Fri
10/30
Drizzle
60%
45°
62°
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
9 AQI 1.7 µg/m³
O3
Ground-level ozone
Dominant
20 AQI 23 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 20 Good 20 9
Sun 28 Good 28 14
Mon 28 Good 26 28
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 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE12 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index18.8
Kinematics
0–6 km Shear46 kt
0–1 km Shear19 kt
Eff. Shear—
0–1 km SRH83
0–3 km SRH84
Eff. SRH—
Storm Motion25° @ 37 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-22.1
Thermo & Levels
PWAT0.31 in
0–3 km LR3.2 °C/km
700–500 LR5.3 °C/km
Total Totals25.1
LCL932 hPa
LFC—
EL—
Freezing Lvl4,035 ft