Excessive Heat Warning — Boone, NE, Burt, NE, Platte, NE, Colfax, NE, Dodge, NE, Washington, NE, Harrison, IA, Shelby, IA, Douglas, NE, Sarpy, NE, Knox, NE, Cedar, NE, Antelope, NE, Pierce, NE, Thurston, NE, Wayne, NE, Madison, NE, Stanton, NE, Cuming, NE, Butler, NE, Saunders, NE, Seward, NE, Lancaster, NE, Cass, NE, Otoe, NE, Saline, NE, Jefferson, NE, Gage, NE, Johnson, NE, Nemaha, NE, Pawnee, NE, Richardson, NE 7:00 AM Heat Advisory — Knox, NE, Cedar, NE, Antelope, NE, Pierce, NE, Thurston, NE, Wayne, NE, Madison, NE, Stanton, NE, Cuming, NE, Boone, NE, Burt, NE, Platte, NE, Colfax, NE, Dodge, NE, Washington, NE, Harrison, IA, Shelby, IA, Douglas, NE, Sarpy, NE, Butler, NE, Saunders, NE, Seward, NE, Lancaster, NE, Cass, NE, Otoe, NE, Saline, NE, Jefferson, NE, Gage, NE, Johnson, NE, Nemaha, NE, Pawnee, NE, Richardson, NE 10:00 PM Heat Advisory — Knox, NE, Cedar, NE, Antelope, NE, Pierce, NE, Douglas, NE, Sarpy, NE, Thurston, NE, Wayne, NE, Boone, NE, Madison, NE, Stanton, NE, Cuming, NE, Burt, NE, Platte, NE, Colfax, NE, Dodge, NE, Washington, NE, Butler, NE, Saunders, NE, Seward, NE, Lancaster, NE, Cass, NE, Otoe, NE, Saline, NE, Jefferson, NE, Gage, NE, Johnson, NE, Nemaha, NE, Pawnee, NE, Richardson, NE 10:00 PM

Knox County, Nebraska, United States

Last updated: 5:53 AM CDT  ·  Refresh
26°C
Feels like 30°
Partly Cloudy
▲ 39°  /  ▼ 24°
Wind
3 mph S
Humidity
82%
Dew Point
24°
Pressure
28.15 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
49%
Sunrise
6:18 AM
Sunset
8:57 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Knox County is currently partly cloudy at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3150 J/kg) — isolated convective development possible. Sunrise: 6:18AM · Sunset: 8:57PM.

Alerts

Excessive Heat Warning
Boone, NE, Burt, NE, Platte, NE, Colfax, NE, Dodge, NE, Washington, NE, Harrison, IA, Shelby, IA, Douglas, NE, Sarpy, NE, Knox, NE, Cedar, NE, Antelope, NE, Pierce, NE, Thurston, NE, Wayne, NE, Madison, NE, Stanton, NE, Cuming, NE, Butler, NE, Saunders, NE, Seward, NE, Lancaster, NE, Cass, NE, Otoe, NE, Saline, NE, Jefferson, NE, Gage, NE, Johnson, NE, Nemaha, NE, Pawnee, NE, Richardson, NE
Expires 7:00 AM
Heat Advisory
Knox, NE, Cedar, NE, Antelope, NE, Pierce, NE, Thurston, NE, Wayne, NE, Madison, NE, Stanton, NE, Cuming, NE, Boone, NE, Burt, NE, Platte, NE, Colfax, NE, Dodge, NE, Washington, NE, Harrison, IA, Shelby, IA, Douglas, NE, Sarpy, NE, Butler, NE, Saunders, NE, Seward, NE, Lancaster, NE, Cass, NE, Otoe, NE, Saline, NE, Jefferson, NE, Gage, NE, Johnson, NE, Nemaha, NE, Pawnee, NE, Richardson, NE
Expires 10:00 PM
Heat Advisory
Knox, NE, Cedar, NE, Antelope, NE, Pierce, NE, Douglas, NE, Sarpy, NE, Thurston, NE, Wayne, NE, Boone, NE, Madison, NE, Stanton, NE, Cuming, NE, Burt, NE, Platte, NE, Colfax, NE, Dodge, NE, Washington, NE, Butler, NE, Saunders, NE, Seward, NE, Lancaster, NE, Cass, NE, Otoe, NE, Saline, NE, Jefferson, NE, Gage, NE, Johnson, NE, Nemaha, NE, Pawnee, NE, Richardson, NE
Expires 10:00 PM
43 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
16%
6 AM
24°
22%
7 AM
26°
24%
8 AM
28°
21%
9 AM
28°
20%
10 AM
30°
21%
11 AM
32°
21%
12 PM
33°
16%
1 PM
35°
7%
2 PM
36°
7%
3 PM
38°
7%
4 PM
37°
16%
5 PM
38°
16%
6 PM
37°
16%
7 PM
36°
16%
8 PM
33°
16%
9 PM
31°
17%
10 PM
30°
16%
11 PM
29°
19%
12 AM
27°
19%
1 AM
28°
19%
2 AM
28°
18%
3 AM
28°
13%
4 AM
28°
13%
7-Day Forecast
Today
39° 24°
Partly Cloudy with a 21% chance of rain.
Tue
37° 22°
Partly Cloudy.
Wed
36° 20°
Mostly Clear with a 23% chance of rain.
Thu
34° 20°
Rain, 75% chance.
Fri
36° 19°
Partly Cloudy.
Sat
36° 19°
Clear.
Sun
38° 19°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Partly Cloudy 16% 3 mph S 82%
6 AM 24° Mostly Clear 22% 4 mph NW 80%
7 AM 26° Partly Cloudy 24% 6 mph N 77%
8 AM 28° Mostly Cloudy 21% 8 mph NNE 72%
9 AM 28° Partly Cloudy 20% 10 mph NNE 67%
10 AM 30° Mostly Clear 21% 10 mph NE 60%
11 AM 32° Mostly Clear 21% 11 mph NE 53%
12 PM 33° Partly Cloudy 16% 12 mph ENE 46%
1 PM 35° Partly Cloudy 7% 12 mph ENE 40%
2 PM 36° Partly Cloudy 7% 12 mph ENE 34%
3 PM 38° Partly Cloudy 7% 12 mph ENE 28%
4 PM 37° Partly Cloudy 16% 11 mph E 27%
5 PM 38° Partly Cloudy 16% 10 mph E 27%
6 PM 37° Partly Cloudy 16% 9 mph E 27%
7 PM 36° Partly Cloudy 16% 8 mph E 30%
8 PM 33° Partly Cloudy 16% 6 mph E 35%
9 PM 31° Partly Cloudy 17% 6 mph E 39%
10 PM 30° Mostly Cloudy 16% 5 mph E 42%
11 PM 29° Mostly Cloudy 19% 5 mph ENE 47%
12 AM 27° Mostly Cloudy 19% 6 mph NNE 51%
1 AM 28° Mostly Cloudy 19% 5 mph NE 50%
2 AM 28° Mostly Cloudy 18% 4 mph NE 50%
3 AM 28° Mostly Cloudy 13% 5 mph NE 48%
4 AM 28° Mostly Cloudy 13% 4 mph ENE 51%
15-Day Forecast
Today
7/27
Partly Cloudy
21%
24°
39°
Tue
7/28
Partly Cloudy
13%
22°
37°
Wed
7/29
Mostly Clear
23%
20°
36°
Thu
7/30
Rain
75%
20°
34°
Fri
7/31
Partly Cloudy
18%
19°
36°
Sat
8/1
Clear
10%
19°
36°
Sun
8/2
Clear
15%
19°
38°
Mon
8/3
Clear
15%
23°
40°
Tue
8/4
Rain
54%
17°
36°
Wed
8/5
Partly Cloudy
35%
14°
32°
Thu
8/6
Drizzle
60%
19°
34°
Fri
8/7
Drizzle
60%
18°
34°
Sat
8/8
Drizzle
60%
19°
34°
Sun
8/9
Drizzle
60%
19°
36°
Mon
8/10
Drizzle
60%
20°
35°
43
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
39 AQI 7.1 µg/m³
O3
Ground-level ozone
Dominant
43 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 43 Good 43 39
Tue 49 Good 47 49
Wed 39 Good 39 36
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 Jul 27, 09:00'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
SBCAPE2175 J/kg
MLCAPE3372 J/kg
MUCAPE4877 J/kg
SBCIN-517 J/kg
MLCIN0 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear17 kt
0–1 km Shear12 kt
Eff. Shear20 kt
0–1 km SRH-58
0–3 km SRH-62
Eff. SRH-63
Storm Motion266° @ 22 kt
0–1 km EHI-0.8
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.6
Thermo & Levels
PWAT1.62 in
0–3 km LR3.8 °C/km
700–500 LR7.3 °C/km
Total Totals49.6
LCL919 hPa
LFC611 hPa
EL161 hPa
Freezing Lvl16,175 ft