National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

78°F

26°C

Humidity 76%
Wind Speed SW 18 G 26 mph
Barometer 29.81 in (1008.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Jun 4:53 am EDT
Extended Forecast for

Slickrock Wilderness NC

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southwest wind around 17 mph, with gusts as high as 36 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 68. West southwest wind 10 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 68 °F

    Chance
    T-storms then
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Patchy fog. Low around 60. South southwest wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers and
    Patchy Fog

  • Juneteenth

    Juneteenth: Showers, mainly before 8am. Patchy fog before 1pm. High near 67. Northwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. Northwest wind 5 to 8 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 3pm. Partly sunny, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Mostly Sunny
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    T-storms
    Likely then
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southwest wind around 17 mph, with gusts as high as 36 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 68. West southwest wind 10 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Patchy fog. Low around 60. South southwest wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Juneteenth
Showers, mainly before 8am. Patchy fog before 1pm. High near 67. Northwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 55. Northwest wind 5 to 8 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Showers and thunderstorms likely, mainly after 3pm. Partly sunny, with a high near 70. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 61. Chance of precipitation is 80%.
Monday
Showers, with thunderstorms also possible after 8am. High near 65. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm. Low around 58. Chance of precipitation is 90%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 67.
Tuesday Night
A chance of thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Slickrock Wilderness NC
 35.38°N 84°W (Elev. 4573 ft)
Last Update:
2:24 am EDT Jun 18, 2026
Forecast Valid:
5am EDT Jun 18, 2026-6pm EDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation