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

Boone County, Iowa, United States

Last updated: 3:30 PM CDT  ·  Refresh
32°C
Feels like 40°
Mostly Clear
▲ 33°  /  ▼ 23°
Wind
19 mph S
Humidity
71%
Dew Point
25°
Pressure
28.66 inHg
Visibility
10 mi
UV Index
8.6
Cloud Cover
29%
Sunrise
5:43 AM
Sunset
8:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Boone County is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4582 J/kg) — isolated convective development possible. Sunrise: 5:43AM · Sunset: 8:55PM.

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
49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
5%
4 PM
32°
5%
5 PM
33°
5%
6 PM
33°
18%
7 PM
32°
17%
8 PM
31°
22%
9 PM
30°
21%
10 PM
29°
8%
11 PM
29°
8%
12 AM
29°
8%
1 AM
28°
8%
2 AM
28°
12%
3 AM
27°
17%
4 AM
27°
21%
5 AM
24°
20%
6 AM
24°
5%
7 AM
24°
5%
8 AM
26°
5%
9 AM
27°
5%
10 AM
30°
5%
11 AM
31°
3%
12 PM
31°
3%
1 PM
32°
10%
2 PM
32°
25%
7-Day Forecast
Today
33° 23°
Partly Cloudy with a 21% chance of rain.
Tue
34° 24°
Partly Cloudy with a 40% chance of rain.
Wed
34° 23°
Mostly Cloudy with a 54% chance of rain.
Thu
35° 24°
Mostly Clear with a 71% chance of rain.
Fri
33° 23°
Clear with a 60% chance of rain.
Sat
33° 21°
Thunderstorm, 90% chance.
Sun
31° 19°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 5% 19 mph S 71%
4 PM 32° Mostly Clear 5% 20 mph S 70%
5 PM 33° Partly Cloudy 5% 19 mph S 73%
6 PM 33° Partly Cloudy 18% 17 mph S 75%
7 PM 32° Partly Cloudy 17% 15 mph S 78%
8 PM 31° Mostly Cloudy 22% 13 mph S 80%
9 PM 30° Overcast 21% 13 mph S 81%
10 PM 29° Mostly Cloudy 8% 13 mph S 82%
11 PM 29° Mostly Cloudy 8% 13 mph S 81%
12 AM 29° Mostly Cloudy 8% 14 mph SSW 81%
1 AM 28° Mostly Cloudy 8% 13 mph SSW 80%
2 AM 28° Mostly Cloudy 12% 12 mph SSW 79%
3 AM 27° Mostly Cloudy 17% 10 mph SSW 79%
4 AM 27° Mostly Cloudy 21% 8 mph SSW 79%
5 AM 24° Mostly Cloudy 20% 7 mph S 80%
6 AM 24° Mostly Cloudy 5% 9 mph S 81%
7 AM 24° Mostly Cloudy 5% 11 mph S 79%
8 AM 26° Partly Cloudy 5% 12 mph S 74%
9 AM 27° Partly Cloudy 5% 14 mph SSW 69%
10 AM 30° Partly Cloudy 5% 14 mph SSW 66%
11 AM 31° Partly Cloudy 3% 15 mph SSW 63%
12 PM 31° Partly Cloudy 3% 15 mph SSW 61%
1 PM 32° Partly Cloudy 10% 15 mph SSW 60%
2 PM 32° Partly Cloudy 25% 15 mph SSW 60%
15-Day Forecast
Today
6/29
Partly Cloudy
21%
23°
33°
Tue
6/30
Partly Cloudy
40%
24°
34°
Wed
7/1
Mostly Cloudy
54%
23°
34°
Thu
7/2
Mostly Clear
71%
24°
35°
Fri
7/3
Clear
60%
23°
33°
Sat
7/4
Thunderstorm
90%
21°
33°
Sun
7/5
Drizzle
60%
19°
31°
Mon
7/6
Clear
60%
19°
31°
Tue
7/7
Drizzle
60%
19°
31°
Wed
7/8
Drizzle
60%
19°
33°
Thu
7/9
Drizzle
60%
20°
31°
Fri
7/10
Drizzle
60%
19°
31°
Sat
7/11
Clear
60%
18°
30°
Sun
7/12
Drizzle
60%
18°
31°
Mon
7/13
Clear
60%
19°
31°
49
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
49 AQI 8.8 µg/m³
O3
Ground-level ozone
32 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 49 Good 32 49
Wed 75 Moderate 35 75
Thu 58 Moderate 33 58
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, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE5451 J/kg
MLCAPE4106 J/kg
MUCAPE5451 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-9.4
Kinematics
0–6 km Shear36 kt
0–1 km Shear11 kt
Eff. Shear30 kt
0–1 km SRH38
0–3 km SRH-14
Eff. SRH-14
Storm Motion202° @ 42 kt
0–1 km EHI1.3
Composite Parameters
Sig. Tornado1.0
STP (eff)0.0
Supercell0.0
K-Index33.8
Thermo & Levels
PWAT1.75 in
0–3 km LR6.1 °C/km
700–500 LR7.4 °C/km
Total Totals50.0
LCL881 hPa
LFC970 hPa
EL126 hPa
Freezing Lvl15,469 ft