Jefferson County, Nebraska, United States

Last updated: 10:58 AM CDT  ·  Refresh
23°C
Feels like 24°
Partly Cloudy
▲ 29°  /  ▼ 16°
Wind
4 mph SE
Humidity
71%
Dew Point
19°
Pressure
28.54 inHg
Visibility
3 mi
UV Index
7.1
Cloud Cover
54%
Sunrise
6:44 AM
Sunset
8:18 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently partly cloudy at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1178 J/kg) — isolated convective development possible. Sunrise: 6:44AM · Sunset: 8:18PM.

Alerts

No active alerts for this location.
37 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
3%
11 AM
23°
14%
12 PM
24°
3%
1 PM
26°
4%
2 PM
27°
4%
3 PM
27°
4%
4 PM
27°
7%
5 PM
29°
7%
6 PM
28°
8%
7 PM
27°
13%
8 PM
24°
13%
9 PM
23°
13%
10 PM
22°
31%
11 PM
21°
31%
12 AM
21°
32%
1 AM
21°
32%
2 AM
21°
33%
3 AM
20°
33%
4 AM
20°
24%
5 AM
17°
25%
6 AM
16°
15%
7 AM
18°
25%
8 AM
19°
26%
9 AM
21°
26%
7-Day Forecast
Today
29° 16°
Mostly Clear with a 31% chance of rain.
Fri
35° 16°
Partly Cloudy with a 52% chance of rain.
Sat
30° 17°
Partly Cloudy with a 26% chance of rain.
Sun
29° 16°
Rain, 45% chance.
Mon
37° 14°
Clear with a 29% chance of rain.
Tue
37° 19°
Rain, 70% chance.
Wed
35° 16°
Clear with a 53% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 23° Partly Cloudy 3% 4 mph SE 71%
11 AM 23° Mostly Clear 14% 5 mph SSE 59%
12 PM 24° Clear 3% 5 mph SSE 52%
1 PM 26° Clear 4% 5 mph SSE 48%
2 PM 27° Clear 4% 4 mph SSE 44%
3 PM 27° Clear 4% 4 mph S 41%
4 PM 27° Clear 7% 4 mph S 43%
5 PM 29° Mostly Clear 7% 4 mph SSE 45%
6 PM 28° Mostly Clear 8% 4 mph SE 49%
7 PM 27° Mostly Clear 13% 4 mph SE 54%
8 PM 24° Partly Cloudy 13% 5 mph SE 58%
9 PM 23° Partly Cloudy 13% 5 mph SE 63%
10 PM 22° Partly Cloudy 31% 4 mph SSE 67%
11 PM 21° Mostly Clear 31% 4 mph SSE 72%
12 AM 21° Mostly Clear 32% 5 mph S 76%
1 AM 21° Mostly Clear 32% 4 mph S 77%
2 AM 21° Clear 33% 5 mph S 77%
3 AM 20° Clear 33% 6 mph S 77%
4 AM 20° Clear 24% 5 mph S 79%
5 AM 17° Clear 25% 4 mph S 81%
6 AM 16° Clear 15% 4 mph S 84%
7 AM 18° Mostly Clear 25% 4 mph S 80%
8 AM 19° Partly Cloudy 26% 4 mph S 76%
9 AM 21° Partly Cloudy 26% 5 mph SSW 72%
15-Day Forecast
Today
8/20
Mostly Clear
31%
16°
29°
Fri
8/21
Partly Cloudy
52%
16°
35°
Sat
8/22
Partly Cloudy
26%
17°
30°
Sun
8/23
Rain
45%
16°
29°
Mon
8/24
Clear
29%
14°
37°
Tue
8/25
Rain
70%
19°
37°
Wed
8/26
Clear
53%
16°
35°
Thu
8/27
Drizzle
53%
16°
36°
Fri
8/28
Drizzle
68%
18°
38°
Sat
8/29
Rain
64%
22°
39°
Sun
8/30
Drizzle
60%
22°
38°
Mon
8/31
Drizzle
60%
22°
37°
Tue
9/1
Clear
60%
22°
37°
Wed
9/2
Drizzle
60%
22°
36°
Thu
9/3
Drizzle
60%
22°
36°
37
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
16 AQI 3.0 µg/m³
O3
Ground-level ozone
Dominant
37 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 37 Good 37 16
Sat 41 Good 41 16
Sun 39 Good 39 16
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 Thu Aug 20, 14:00'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
SBCAPE293 J/kg
MLCAPE26 J/kg
MUCAPE293 J/kg
SBCIN-269 J/kg
MLCIN0 J/kg
Lifted Index-0.5
Kinematics
0–6 km Shear32 kt
0–1 km Shear11 kt
Eff. Shear—
0–1 km SRH-51
0–3 km SRH-18
Eff. SRH—
Storm Motion353° @ 29 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index15.5
Thermo & Levels
PWAT1.02 in
0–3 km LR5.0 °C/km
700–500 LR6.2 °C/km
Total Totals35.8
LCL912 hPa
LFC657 hPa
EL276 hPa
Freezing Lvl13,041 ft