Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82° N Lon: 83.99° W Elev: 981 ft.

Overcast

74°F

23°C

Humidity 88%
Wind Speed W 6 mph
Barometer 30.01 in (1014.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 28 Aug 5:53 am EDT
Detailed forecast for

Knox County

Rest Of Tonight
Mostly cloudy. Patchy fog. Near steady temperature in the upper 60s. Light winds.
Friday
Partly sunny in the morning, then clearing. Patchy fog in the morning. Highs in the upper 80s. Light winds.
Friday Night
Partly cloudy in the evening, then clearing. Lows in the upper 60s. Light winds.
Saturday
Sunny. Highs around 90. Light winds.
Saturday Night
Partly cloudy. Lows in the upper 60s. Light winds.
Sunday
Sunny. Highs in the lower 90s.
Sunday Night
Partly cloudy. Lows around 70.
Monday
Sunny. Highs in the lower 90s.
Monday Night
Mostly clear. Lows in the lower 70s.
Tuesday
Sunny. Highs in the lower 90s.
Tuesday Night
Mostly clear. Lows in the lower 70s.
Wednesday
Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent.
Wednesday Night
Partly cloudy in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the lower 70s. Chance of rain 20 percent.
Thursday
Sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 30 percent.



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228 AM EDT Fri Aug 28 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database