Excessive Heat 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, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Adams, IA, Union, IA, Taylor, IA, Ringgold, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA, Marshall, IA, Tama, IA, Jasper, IA, Poweshiek, IA, Marion, IA, Mahaska, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA 9:00 PM

Grundy County, Iowa, United States

Last updated: 10:17 AM CDT  ·  Refresh
28°C
Feels like 32°
Partly Cloudy
▲ 33°  /  ▼ 24°
Wind
3 mph SSW
Humidity
78%
Dew Point
23°
Pressure
28.80 inHg
Visibility
10 mi
UV Index
7.2
Cloud Cover
51%
Sunrise
5:57 AM
Sunset
8:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Grundy County is currently partly cloudy at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4554 J/kg) — isolated convective development possible. Sunrise: 5:57AM · Sunset: 8:37PM.

Alerts

Excessive Heat 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, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Adams, IA, Union, IA, Taylor, IA, Ringgold, IA, Butler, IA, Bremer, IA, Grundy, IA, Black Hawk, IA, Marshall, IA, Tama, IA, Jasper, IA, Poweshiek, IA, Marion, IA, Mahaska, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA
Expires 9:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
3%
11 AM
30°
14%
12 PM
31°
14%
1 PM
32°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
33°
14%
6 PM
33°
6%
7 PM
32°
16%
8 PM
31°
5%
9 PM
29°
5%
10 PM
29°
8%
11 PM
28°
8%
12 AM
28°
8%
1 AM
27°
8%
2 AM
26°
9%
3 AM
26°
9%
4 AM
25°
18%
5 AM
24°
19%
6 AM
24°
19%
7 AM
24°
19%
8 AM
25°
15%
9 AM
28°
15%
7-Day Forecast
Today
33° 24°
Mostly Cloudy.
Mon
35° 22°
Clear.
Tue
29° 20°
Mostly Cloudy with a 31% chance of rain.
Wed
29° 18°
Partly Cloudy with a 76% chance of rain.
Thu
28° 18°
Rain, 71% chance.
Fri
27° 19°
Heavy Rain, 82% chance.
Sat
28° 18°
Clear with a 30% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 28° Partly Cloudy 3% 3 mph SSW 78%
11 AM 30° Mostly Cloudy 14% 5 mph SSW 71%
12 PM 31° Mostly Cloudy 14% 5 mph S 68%
1 PM 32° Mostly Cloudy 3% 6 mph S 66%
2 PM 33° Mostly Cloudy 3% 7 mph S 64%
3 PM 33° Overcast 3% 7 mph S 64%
4 PM 33° Overcast 3% 7 mph S 67%
5 PM 33° Mostly Cloudy 14% 6 mph SSE 71%
6 PM 33° Partly Cloudy 6% 6 mph SSE 75%
7 PM 32° Rain 16% 6 mph SSE 78%
8 PM 31° Partly Cloudy 5% 7 mph SSE 76%
9 PM 29° Mostly Cloudy 5% 8 mph SSE 74%
10 PM 29° Mostly Cloudy 8% 10 mph S 72%
11 PM 28° Mostly Cloudy 8% 10 mph S 71%
12 AM 28° Partly Cloudy 8% 10 mph SSW 71%
1 AM 27° Partly Cloudy 8% 9 mph SSW 72%
2 AM 26° Mostly Clear 9% 8 mph SSW 75%
3 AM 26° Mostly Clear 9% 8 mph S 78%
4 AM 25° Clear 18% 8 mph S 80%
5 AM 24° Clear 19% 8 mph S 83%
6 AM 24° Clear 19% 8 mph S 85%
7 AM 24° Clear 19% 8 mph S 86%
8 AM 25° Clear 15% 7 mph SSW 83%
9 AM 28° Clear 15% 7 mph SSW 81%
15-Day Forecast
Today
7/26
Mostly Cloudy
16%
24°
33°
Mon
7/27
Clear
18%
22°
35°
Tue
7/28
Mostly Cloudy
31%
20°
29°
Wed
7/29
Partly Cloudy
76%
18°
29°
Thu
7/30
Rain
71%
18°
28°
Fri
7/31
Heavy Rain
82%
19°
27°
Sat
8/1
Clear
30%
18°
28°
Sun
8/2
Drizzle
43%
18°
29°
Mon
8/3
Drizzle
44%
18°
31°
Tue
8/4
Drizzle
51%
21°
31°
Wed
8/5
Drizzle
60%
18°
29°
Thu
8/6
Clear
60%
18°
28°
Fri
8/7
Drizzle
60%
17°
29°
Sat
8/8
Drizzle
60%
18°
30°
Sun
8/9
Drizzle
60%
18°
30°
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 10.0 µg/m³
O3
Ground-level ozone
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 52 Moderate 34 52
Tue 49 Good 38 49
Wed 53 Moderate 35 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 Sun Jul 26, 14:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2667 J/kg
MLCAPE636 J/kg
MUCAPE2667 J/kg
SBCIN-314 J/kg
MLCIN0 J/kg
Lifted Index-7.1
Kinematics
0–6 km Shear22 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH-51
0–3 km SRH-121
Eff. SRH—
Storm Motion271° @ 28 kt
0–1 km EHI-0.9
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index26.6
Thermo & Levels
PWAT1.52 in
0–3 km LR5.4 °C/km
700–500 LR7.2 °C/km
Total Totals44.2
LCL908 hPa
LFC703 hPa
EL161 hPa
Freezing Lvl14,334 ft