Johnston County, North Carolina, United States

Last updated: 10:35 PM CDT  ·  Refresh
22°C
Feels like 22°
Mostly Clear
▲ 29°  /  ▼ 18°
Wind
2 mph E
Humidity
62%
Dew Point
16°
Pressure
29.88 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
23%
Sunrise
5:59 AM
Sunset
8:32 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Johnston County is currently mostly clear at 22°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:59AM · Sunset: 8:32PM.

Alerts

No active alerts for this location.
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
3%
12 AM
21°
14%
1 AM
20°
14%
2 AM
19°
3%
3 AM
19°
3%
4 AM
18°
3%
5 AM
18°
3%
6 AM
19°
3%
7 AM
20°
3%
8 AM
22°
3%
9 AM
24°
3%
10 AM
26°
3%
11 AM
28°
3%
12 PM
28°
3%
1 PM
29°
3%
2 PM
30°
3%
3 PM
31°
3%
4 PM
31°
3%
5 PM
33°
3%
6 PM
31°
3%
7 PM
30°
3%
8 PM
29°
3%
9 PM
26°
3%
10 PM
25°
3%
7-Day Forecast
Tonight
29° 18°
Mostly Clear.
Thu
33° 18°
Mostly Cloudy.
Fri
33° 19°
Drizzle, 57% chance.
Sat
34° 19°
Rain, 72% chance.
Sun
33° 21°
Rain, 66% chance.
Mon
32° 19°
Clear with a 21% chance of rain.
Tue
33° 18°
Clear with a 21% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Clear 3% 2 mph E 62%
12 AM 21° Mostly Clear 14% 4 mph SE 66%
1 AM 20° Drizzle 14% 4 mph SE 72%
2 AM 19° Clear 3% 4 mph SE 77%
3 AM 19° Clear 3% 4 mph SE 82%
4 AM 18° Mostly Clear 3% 4 mph SE 87%
5 AM 18° Mostly Clear 3% 3 mph SSE 88%
6 AM 19° Partly Cloudy 3% 3 mph SSE 85%
7 AM 20° Mostly Cloudy 3% 3 mph SSE 81%
8 AM 22° Mostly Cloudy 3% 4 mph S 74%
9 AM 24° Mostly Cloudy 3% 5 mph S 65%
10 AM 26° Mostly Cloudy 3% 6 mph S 57%
11 AM 28° Mostly Cloudy 3% 5 mph S 51%
12 PM 28° Overcast 3% 5 mph SSW 48%
1 PM 29° Overcast 3% 4 mph SSW 45%
2 PM 30° Overcast 3% 5 mph S 43%
3 PM 31° Mostly Cloudy 3% 5 mph S 42%
4 PM 31° Mostly Cloudy 3% 5 mph S 41%
5 PM 33° Mostly Cloudy 3% 5 mph S 42%
6 PM 31° Mostly Cloudy 3% 6 mph S 45%
7 PM 30° Mostly Cloudy 3% 6 mph S 48%
8 PM 29° Mostly Cloudy 3% 6 mph S 52%
9 PM 26° Mostly Cloudy 3% 7 mph S 55%
10 PM 25° Partly Cloudy 3% 8 mph S 59%
15-Day Forecast
Today
6/24
Mostly Clear
3%
18°
29°
Thu
6/25
Mostly Cloudy
14%
18°
33°
Fri
6/26
Drizzle
57%
19°
33°
Sat
6/27
Rain
72%
19°
34°
Sun
6/28
Rain
66%
21°
33°
Mon
6/29
Clear
21%
19°
32°
Tue
6/30
Clear
21%
18°
33°
Wed
7/1
Clear
31%
19°
35°
Thu
7/2
Rain
71%
19°
36°
Fri
7/3
Drizzle
54%
20°
38°
Sat
7/4
Clear
52%
22°
40°
Sun
7/5
Clear
66%
23°
40°
Mon
7/6
Drizzle
66%
22°
41°
Tue
7/7
Drizzle
66%
22°
41°
Wed
7/8
Drizzle
66%
22°
41°
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 9.9 µg/m³
O3
Ground-level ozone
47 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 47 52
Fri 54 Moderate 46 54
Sat 55 Moderate 46 55
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Thu Jun 25, 02:00'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
SBCAPE0 J/kg
MLCAPE8 J/kg
MUCAPE8 J/kg
SBCIN-7867 J/kg
MLCIN0 J/kg
Lifted Index6.4
Kinematics
0–6 km Shear23 kt
0–1 km Shear1 kt
Eff. Shear—
0–1 km SRH-3
0–3 km SRH-23
Eff. SRH—
Storm Motion181° @ 16 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)—
Supercell—
K-Index-0.5
Thermo & Levels
PWAT1.06 in
0–3 km LR4.3 °C/km
700–500 LR5.7 °C/km
Total Totals37.7
LCL922 hPa
LFC—
EL—
Freezing Lvl15,249 ft