Today | Weather | Wednesday, August 12, 2026
Active Weather Warnings

Weather in Roanoke, Virginia

07:48 AM
Now
Cloudy Weather
72° F
Feels Like 73°
Precipitation 7 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 77 %
Today
Sunny with a Chance of Thunderstorms
Day 88°
Night 72°
Precipitation 55 %
Wind 8 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Roanoke Weather Forecast Updated

28 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 12, 2025)
Cloudy Night

Day

88°

Night

72°

Wind

5 mph

Precipitation

40 %

Air Quality in Roanoke

NOW
18 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.58 µg/m³
PM10 2.46 µg/m³
O3 0.020 ppm
NO2 1.9 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 1.66 µg/m³
NO 0.1 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.58 µg/m³
PM102.46 µg/m³
O338.83 µg/m³
NO23.56 µg/m³
SO20.12 µg/m³
CO124.69 µg/m³
NH31.66 µg/m³
NO0.1 µg/m³

Weather Alerts and Warnings for Roanoke

Severe Future Possible

Flood Watch

Flood Watch issued August 12 at 2:01AM EDT until August 13 at 8:00AM EDT by NWS Blacksburg VA
Aug 12, 2:01 AM Aug 13, 8:00 AM
WHAT: Flooding caused by excessive rainfall continues to be
possible.

WHERE: Portions of northwest North Carolina, including the
following areas, Alleghany NC, Ashe and Watauga, Virginia,
including the following areas, Alleghany VA, Bath, Bland,
Botetourt, Carroll, Craig, Floyd, Giles, Grayson, Montgomery,
Pulaski, Roanoke, Rockbridge, Smyth, Tazewell and Wythe, and
southeast West Virginia, including the following areas, Eastern
Greenbrier, Mercer, Monroe, Summers and Western Greenbrier.

WHEN: Through Thursday morning.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.

ADDITIONAL DETAILS:
- Repeated rounds of rain and thunderstorms may lead to flash
flooding through midweek.
- http://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Updated: Aug 12, 7:20 AM Source: NWS Alert