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

Grundy County, Iowa, United States

Last updated: 4:55 PM CDT  ·  Refresh
31°C
Feels like 40°
Partly Cloudy
▲ 33°  /  ▼ 24°
Wind
20 mph S
Humidity
76%
Dew Point
26°
Pressure
28.66 inHg
Visibility
10 mi
UV Index
7.0
Cloud Cover
40%
Sunrise
5:37 AM
Sunset
8:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Grundy County is currently partly cloudy at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4667 J/kg) — isolated convective development possible. Sunrise: 5:37AM · Sunset: 8:52PM.

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
37 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
5%
5 PM
33°
25%
6 PM
32°
25%
7 PM
31°
28%
8 PM
30°
37%
9 PM
29°
37%
10 PM
28°
28%
11 PM
28°
29%
12 AM
28°
22%
1 AM
27°
17%
2 AM
27°
17%
3 AM
26°
22%
4 AM
26°
21%
5 AM
24°
12%
6 AM
24°
9%
7 AM
25°
9%
8 AM
26°
5%
9 AM
27°
5%
10 AM
28°
5%
11 AM
31°
5%
12 PM
32°
5%
1 PM
32°
13%
2 PM
32°
13%
3 PM
32°
13%
7-Day Forecast
Today
33° 24°
Partly Cloudy with a 28% chance of rain.
Tue
33° 24°
Partly Cloudy with a 40% chance of rain.
Wed
32° 23°
Partly Cloudy with a 67% chance of rain.
Thu
32° 24°
Partly Cloudy with a 82% chance of rain.
Fri
32° 22°
Thunderstorm, 60% chance.
Sat
32° 21°
Thunderstorm, 90% chance.
Sun
30° 19°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 5% 20 mph S 76%
5 PM 33° Partly Cloudy 25% 19 mph S 76%
6 PM 32° Partly Cloudy 25% 19 mph S 78%
7 PM 31° Partly Cloudy 28% 16 mph S 79%
8 PM 30° Partly Cloudy 37% 14 mph S 82%
9 PM 29° Partly Cloudy 37% 13 mph S 84%
10 PM 28° Partly Cloudy 28% 12 mph SSW 85%
11 PM 28° Mostly Cloudy 29% 12 mph SSW 86%
12 AM 28° Mostly Cloudy 22% 12 mph SSW 86%
1 AM 27° Mostly Cloudy 17% 12 mph SSW 85%
2 AM 27° Mostly Cloudy 17% 12 mph SSW 84%
3 AM 26° Partly Cloudy 22% 12 mph SSW 83%
4 AM 26° Mostly Cloudy 21% 11 mph SSW 84%
5 AM 24° Partly Cloudy 12% 9 mph SSW 85%
6 AM 24° Mostly Cloudy 9% 10 mph SSW 84%
7 AM 25° Partly Cloudy 9% 12 mph SSW 82%
8 AM 26° Partly Cloudy 5% 14 mph SSW 77%
9 AM 27° Partly Cloudy 5% 15 mph SSW 73%
10 AM 28° Partly Cloudy 5% 16 mph SSW 68%
11 AM 31° Partly Cloudy 5% 16 mph SSW 65%
12 PM 32° Partly Cloudy 5% 16 mph SSW 63%
1 PM 32° Partly Cloudy 13% 15 mph SSW 63%
2 PM 32° Partly Cloudy 13% 15 mph SSW 64%
3 PM 32° Mostly Cloudy 13% 14 mph SSW 64%
15-Day Forecast
Today
6/29
Partly Cloudy
28%
24°
33°
Tue
6/30
Partly Cloudy
40%
24°
33°
Wed
7/1
Partly Cloudy
67%
23°
32°
Thu
7/2
Partly Cloudy
82%
24°
32°
Fri
7/3
Thunderstorm
60%
22°
32°
Sat
7/4
Thunderstorm
90%
21°
32°
Sun
7/5
Drizzle
60%
19°
30°
Mon
7/6
Overcast
25%
19°
29°
Tue
7/7
Drizzle
60%
19°
29°
Wed
7/8
Drizzle
60%
19°
30°
Thu
7/9
Drizzle
60%
20°
29°
Fri
7/10
Drizzle
60%
19°
29°
Sat
7/11
Drizzle
60%
19°
28°
Sun
7/12
Drizzle
60%
18°
29°
Mon
7/13
Clear
60%
19°
29°
37
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
37 AQI 6.7 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 37 Good 33 37
Wed 71 Moderate 39 71
Thu 61 Moderate 37 61
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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE5711 J/kg
MLCAPE4851 J/kg
MUCAPE5711 J/kg
SBCIN-12 J/kg
MLCIN0 J/kg
Lifted Index-9.3
Kinematics
0–6 km Shear30 kt
0–1 km Shear12 kt
Eff. Shear26 kt
0–1 km SRH57
0–3 km SRH7
Eff. SRH7
Storm Motion206° @ 41 kt
0–1 km EHI2.0
Composite Parameters
Sig. Tornado1.4
STP (eff)0.2
Supercell0.6
K-Index32.7
Thermo & Levels
PWAT1.82 in
0–3 km LR5.7 °C/km
700–500 LR7.4 °C/km
Total Totals52.0
LCL898 hPa
LFC883 hPa
EL124 hPa
Freezing Lvl16,066 ft