Roanoke, Virginia

Last updated: 2:20 AM CDT  ·  Refresh
23°C
Feels like 27°
Partly Cloudy
▲ 29°  /  ▼ 19°
Wind
4 mph WSW
Humidity
90%
Dew Point
22°
Pressure
28.61 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
43%
Sunrise
6:16 AM
Sunset
8:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Roanoke is currently partly cloudy at 24°C. Precipitation is likely — peak probability 57% around 3 AM. Atmospheric instability is elevated (CAPE up to 856 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 8:35PM.

Alerts

No active alerts for this location.
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
56%
4 AM
23°
44%
5 AM
21°
26%
6 AM
21°
31%
7 AM
21°
16%
8 AM
22°
21%
9 AM
23°
37%
10 AM
24°
33%
11 AM
25°
46%
12 PM
26°
46%
1 PM
27°
49%
2 PM
27°
53%
3 PM
26°
53%
4 PM
26°
53%
5 PM
27°
43%
6 PM
27°
33%
7 PM
26°
35%
8 PM
25°
39%
9 PM
24°
42%
10 PM
23°
32%
11 PM
23°
35%
12 AM
22°
35%
1 AM
23°
35%
2 AM
22°
35%
7-Day Forecast
Today
29° 19°
Rain, 56% chance.
Thu
26° 17°
Partly Cloudy with a 29% chance of rain.
Fri
26° 16°
Mostly Cloudy with a 57% chance of rain.
Sat
23° 17°
Rain, 67% chance.
Sun
31° 17°
Rain, 70% chance.
Mon
34° 20°
Rain, 70% chance.
Tue
36° 19°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Partly Cloudy 56% 4 mph WSW 90%
4 AM 23° Partly Cloudy 44% 4 mph WSW 92%
5 AM 21° Partly Cloudy 26% 5 mph SW 92%
6 AM 21° Mostly Cloudy 31% 4 mph SW 92%
7 AM 21° Partly Cloudy 16% 4 mph SW 92%
8 AM 22° Partly Cloudy 21% 4 mph SW 88%
9 AM 23° Mostly Cloudy 37% 5 mph WSW 80%
10 AM 24° Mostly Cloudy 33% 5 mph WSW 71%
11 AM 25° Rain 46% 6 mph SW 64%
12 PM 26° Mostly Cloudy 46% 6 mph WSW 62%
1 PM 27° Mostly Cloudy 49% 6 mph SW 62%
2 PM 27° Rain 53% 6 mph SW 62%
3 PM 26° Rain 53% 5 mph SW 65%
4 PM 26° Rain 53% 5 mph SW 67%
5 PM 27° Rain 43% 4 mph SW 68%
6 PM 27° Rain 33% 4 mph WSW 71%
7 PM 26° Rain 35% 4 mph W 74%
8 PM 25° Rain 39% 4 mph WNW 77%
9 PM 24° Mostly Cloudy 42% 3 mph WNW 79%
10 PM 23° Mostly Cloudy 32% 3 mph WNW 82%
11 PM 23° Mostly Cloudy 35% 3 mph WNW 82%
12 AM 22° Mostly Cloudy 35% 3 mph WNW 81%
1 AM 23° Mostly Cloudy 35% 3 mph NW 79%
2 AM 22° Mostly Cloudy 35% 3 mph NW 78%
15-Day Forecast
Today
7/22
Rain
56%
19°
29°
Thu
7/23
Partly Cloudy
29%
17°
26°
Fri
7/24
Mostly Cloudy
57%
16°
26°
Sat
7/25
Rain
67%
17°
23°
Sun
7/26
Rain
70%
17°
31°
Mon
7/27
Rain
70%
20°
34°
Tue
7/28
Rain
63%
19°
36°
Wed
7/29
Rain
63%
19°
36°
Thu
7/30
Drizzle
44%
18°
31°
Fri
7/31
Rain
64%
17°
28°
Sat
8/1
Drizzle
60%
18°
30°
Sun
8/2
Drizzle
60%
18°
30°
Mon
8/3
Drizzle
60%
18°
30°
Tue
8/4
Drizzle
60%
18°
31°
Wed
8/5
Drizzle
60%
19°
32°
55
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
55 AQI 11.1 µg/m³
O3
Ground-level ozone
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 37 55
Thu 56 Moderate 41 56
Fri 50 Good 26 50
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 Wed Jul 22, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE671 J/kg
MLCAPE729 J/kg
MUCAPE925 J/kg
SBCIN-71 J/kg
MLCIN0 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear50 kt
0–1 km Shear31 kt
Eff. Shear50 kt
0–1 km SRH-115
0–3 km SRH-127
Eff. SRH-127
Storm Motion232° @ 40 kt
0–1 km EHI-0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.8
Thermo & Levels
PWAT1.73 in
0–3 km LR5.2 °C/km
700–500 LR5.6 °C/km
Total Totals46.3
LCL942 hPa
LFC780 hPa
EL201 hPa
Freezing Lvl14,252 ft