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

Lancaster County, Nebraska, United States

Last updated: 4:30 AM CDT  ·  Refresh
28°C
Feels like 30°
Partly Cloudy
▲ 41°  /  ▼ 24°
Wind
8 mph S
Humidity
63%
Dew Point
21°
Pressure
28.45 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
40%
Sunrise
6:18 AM
Sunset
8:47 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lancaster County is currently partly cloudy at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2669 J/kg) — isolated convective development possible. Sunrise: 6:18AM · Sunset: 8:47PM.

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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
3%
5 AM
26°
21%
6 AM
26°
21%
7 AM
26°
21%
8 AM
28°
21%
9 AM
31°
21%
10 AM
33°
23%
11 AM
34°
23%
12 PM
36°
17%
1 PM
38°
5%
2 PM
39°
8%
3 PM
39°
8%
4 PM
40°
8%
5 PM
41°
8%
6 PM
40°
8%
7 PM
38°
8%
8 PM
36°
9%
9 PM
34°
9%
10 PM
33°
22%
11 PM
32°
27%
12 AM
31°
27%
1 AM
31°
28%
2 AM
30°
33%
3 AM
29°
33%
7-Day Forecast
Today
41° 24°
Partly Cloudy with a 23% chance of rain.
Tue
36° 23°
Mostly Cloudy with a 25% chance of rain.
Wed
36° 21°
Mostly Clear with a 43% chance of rain.
Thu
35° 21°
Mostly Cloudy with a 81% chance of rain.
Fri
35° 20°
Clear with a 69% chance of rain.
Sat
36° 18°
Clear.
Sun
37° 19°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 28° Partly Cloudy 3% 8 mph S 63%
5 AM 26° Mostly Clear 21% 8 mph SSW 60%
6 AM 26° Clear 21% 7 mph SSW 62%
7 AM 26° Clear 21% 7 mph SSW 60%
8 AM 28° Clear 21% 8 mph SW 53%
9 AM 31° Clear 21% 9 mph SW 46%
10 AM 33° Clear 23% 8 mph WSW 41%
11 AM 34° Clear 23% 5 mph WSW 38%
12 PM 36° Mostly Clear 17% 3 mph W 36%
1 PM 38° Partly Cloudy 5% 3 mph NW 34%
2 PM 39° Partly Cloudy 8% 4 mph E 32%
3 PM 39° Partly Cloudy 8% 5 mph E 31%
4 PM 40° Mostly Cloudy 8% 7 mph E 31%
5 PM 41° Partly Cloudy 8% 8 mph E 31%
6 PM 40° Partly Cloudy 8% 8 mph E 32%
7 PM 38° Partly Cloudy 8% 8 mph E 36%
8 PM 36° Partly Cloudy 9% 8 mph E 43%
9 PM 34° Partly Cloudy 9% 8 mph E 49%
10 PM 33° Partly Cloudy 22% 8 mph E 54%
11 PM 32° Mostly Cloudy 27% 8 mph E 57%
12 AM 31° Mostly Cloudy 27% 8 mph E 60%
1 AM 31° Mostly Cloudy 28% 8 mph E 62%
2 AM 30° Rain 33% 8 mph E 66%
3 AM 29° Rain 33% 7 mph E 69%
15-Day Forecast
Today
7/27
Partly Cloudy
23%
24°
41°
Tue
7/28
Mostly Cloudy
25%
23°
36°
Wed
7/29
Mostly Clear
43%
21°
36°
Thu
7/30
Mostly Cloudy
81%
21°
35°
Fri
7/31
Clear
69%
20°
35°
Sat
8/1
Clear
17%
18°
36°
Sun
8/2
Clear
8%
19°
37°
Mon
8/3
Drizzle
43%
22°
38°
Tue
8/4
Drizzle
68%
21°
41°
Wed
8/5
Rain
64%
16°
33°
Thu
8/6
Drizzle
60%
21°
36°
Fri
8/7
Drizzle
60%
21°
34°
Sat
8/8
Drizzle
60%
21°
34°
Sun
8/9
Drizzle
60%
21°
36°
Mon
8/10
Drizzle
60%
21°
36°
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
Today 52 Moderate 34 52
Tue 54 Moderate 40 54
Wed 49 Good 49 49
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, 08:00'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
SBCAPE1052 J/kg
MLCAPE1034 J/kg
MUCAPE1666 J/kg
SBCIN-705 J/kg
MLCIN0 J/kg
Lifted Index-3.5
Kinematics
0–6 km Shear21 kt
0–1 km Shear31 kt
Eff. Shear36 kt
0–1 km SRH188
0–3 km SRH260
Eff. SRH54
Storm Motion255° @ 27 kt
0–1 km EHI1.2
Composite Parameters
Sig. Tornado0.5
STP (eff)0.0
Supercell1.7
K-Index38.2
Thermo & Levels
PWAT1.89 in
0–3 km LR4.6 °C/km
700–500 LR7.5 °C/km
Total Totals52.1
LCL869 hPa
LFC606 hPa
EL194 hPa
Freezing Lvl15,892 ft