Catastrophic Flooding Impacts in South-Central Texas

Widespread life-threatening flash and urban flooding will continue to pose a significant threat to life and property in south-central Texas. Catastrophic fiver flooding, with rapid rises on small streams, arroyos, and typically dry washes, is expected. Monsoonal showers persist across the Great Basin and Southwest with greatest flash flooding in southern Arizona. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

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

Partly Cloudy

90°F

32°C

Humidity 54%
Wind Speed Calm
Barometer 30.05 in (1016.1 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Jul 3:53 pm EDT
Detailed forecast for

Knox County

Rest Of Today
Mostly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Light winds. Chance of rain 20 percent.
Tonight
Partly cloudy. Humid with lows in the mid 70s. Light winds.
Friday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs around 90. Light winds. Chance of rain 50 percent.
Friday Night
Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Humid with lows in the mid 70s. Light winds. Chance of rain 40 percent.
Saturday
Mostly sunny. A chance of showers and thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Light winds. Chance of rain 90 percent.
Saturday Night
Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 70s. Chance of rain 70 percent.
Sunday
Partly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the upper 80s. Chance of rain 70 percent.
Sunday Night
Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Chance of rain 20 percent.
Monday
Mostly sunny. Highs in the upper 80s.
Monday Night
Partly cloudy. Lows in the lower 70s.
Tuesday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
Tuesday Night
Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the lower 70s. Chance of rain 40 percent.
Wednesday
Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.



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228 PM EDT Thu Jul 16 2026
 
 

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