Flood Advisory — Alamance County, NC, Durham County, NC, Orange County, NC 9:15 PM Areal Flood Advisory — Durham County, NC, Granville County, NC, Person County, NC, Vance County, NC 9:45 PM Areal Flood Watch 7:00 AM

Durham County, North Carolina, United States

Last updated: 8:34 PM CDT  ·  Refresh
22°C
Feels like 24°
Rain
▲ 26°  /  ▼ 19°
Wind
6 mph SE
Humidity
95%
Dew Point
21°
Pressure
29.64 inHg
Visibility
2 mi
UV Index
0.0
Cloud Cover
98%
Sunrise
6:38 AM
Sunset
7:57 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Durham County is currently rain at 22°C. Precipitation is likely — peak probability 71% around 10 PM. Atmospheric instability is elevated (CAPE up to 1040 J/kg) — isolated convective development possible. Sunrise: 6:38AM · Sunset: 7:57PM.

Alerts

Flood Advisory
Alamance County, NC, Durham County, NC, Orange County, NC
Expires 9:15 PM
Areal Flood Advisory
Durham County, NC, Granville County, NC, Person County, NC, Vance County, NC
Expires 9:45 PM
Areal Flood Watch
Expires 7:00 AM
46 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
60%
10 PM
22°
70%
11 PM
22°
61%
12 AM
22°
61%
1 AM
22°
53%
2 AM
22°
35%
3 AM
22°
31%
4 AM
22°
41%
5 AM
19°
20%
6 AM
20°
28%
7 AM
20°
32%
8 AM
21°
29%
9 AM
22°
29%
10 AM
23°
29%
11 AM
24°
33%
12 PM
24°
33%
1 PM
27°
33%
2 PM
27°
37%
3 PM
27°
38%
4 PM
28°
38%
5 PM
28°
27%
6 PM
27°
27%
7 PM
27°
20%
8 PM
27°
20%
7-Day Forecast
Tonight
26° 19°
Rain, 60% chance.
Sat
29° 19°
Mostly Cloudy with a 61% chance of rain.
Sun
32° 20°
Clear.
Mon
31° 18°
Mostly Clear with a 60% chance of rain.
Tue
32° 17°
Mostly Clear.
Wed
34° 19°
Rain, 82% chance.
Thu
31° 19°
Rain, 78% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Rain 60% 6 mph SE 95%
10 PM 22° Rain 70% 6 mph SE 96%
11 PM 22° Rain 61% 4 mph SSE 96%
12 AM 22° Rain 61% 4 mph S 95%
1 AM 22° Overcast 53% 4 mph S 95%
2 AM 22° Overcast 35% 3 mph S 95%
3 AM 22° Overcast 31% 2 mph S 95%
4 AM 22° Overcast 41% 2 mph S 95%
5 AM 19° Overcast 20% 2 mph SSE 94%
6 AM 20° Overcast 28% 2 mph SSE 94%
7 AM 20° Mostly Cloudy 32% 3 mph SSE 93%
8 AM 21° Mostly Cloudy 29% 3 mph S 89%
9 AM 22° Mostly Cloudy 29% 2 mph SSW 84%
10 AM 23° Mostly Cloudy 29% 2 mph SW 78%
11 AM 24° Mostly Cloudy 33% 3 mph SW 75%
12 PM 24° Mostly Cloudy 33% 3 mph WSW 72%
1 PM 27° Mostly Cloudy 33% 4 mph WSW 69%
2 PM 27° Partly Cloudy 37% 4 mph WSW 67%
3 PM 27° Partly Cloudy 38% 4 mph WSW 66%
4 PM 28° Partly Cloudy 38% 4 mph SW 64%
5 PM 28° Partly Cloudy 27% 4 mph SW 65%
6 PM 27° Partly Cloudy 27% 4 mph SW 68%
7 PM 27° Mostly Clear 20% 3 mph SSW 71%
8 PM 27° Mostly Clear 20% 3 mph SW 76%
15-Day Forecast
Today
8/21
Rain
60%
19°
26°
Sat
8/22
Mostly Cloudy
61%
19°
29°
Sun
8/23
Clear
7%
20°
32°
Mon
8/24
Mostly Clear
60%
18°
31°
Tue
8/25
Mostly Clear
16%
17°
32°
Wed
8/26
Rain
82%
19°
34°
Thu
8/27
Rain
78%
19°
31°
Fri
8/28
Rain
63%
21°
34°
Sat
8/29
Drizzle
44%
18°
34°
Sun
8/30
Drizzle
68%
19°
34°
Mon
8/31
Drizzle
60%
20°
36°
Tue
9/1
Drizzle
60%
23°
36°
Wed
9/2
Drizzle
60%
23°
33°
Thu
9/3
Drizzle
60%
22°
34°
Fri
9/4
Drizzle
60%
22°
34°
46
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
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 46 Good 46 39
Sun 40 Good 40 24
Mon 37 Good 37 28
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 Fri Aug 21, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE81 J/kg
MLCAPE375 J/kg
MUCAPE568 J/kg
SBCIN-87 J/kg
MLCIN-18 J/kg
Lifted Index-0.1
Kinematics
0–6 km Shear18 kt
0–1 km Shear6 kt
Eff. Shear19 kt
0–1 km SRH15
0–3 km SRH83
Eff. SRH97
Storm Motion294° @ 11 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.0
Thermo & Levels
PWAT2.38 in
0–3 km LR4.6 °C/km
700–500 LR5.2 °C/km
Total Totals46.2
LCL990 hPa
LFC736 hPa
EL495 hPa
Freezing Lvl14,409 ft