Severe Weather in the Central Plains; Fire Concerns in the Southern High Plains and Southwest; Late-Season Mountain Snow

Severe storms, including large hail, wind, and perhaps a couple of tornadoes, are possible in the central Plains. Dry, windy conditions and lightning from dry thunderstorms may produce hazardous fire conditions in the Southwest and southern High Plains. Late-season snow is expected in the Northwest and the Great Basin. Heat is spreading across the eastern U.S.. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

65°F

18°C

Humidity 70%
Wind Speed SE 3 mph
Barometer 30.07 in (1017.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 May 1:53 am EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • Overnight

    Overnight: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. South wind 5 to 10 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 90. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 90 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. South wind 5 to 10 mph.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 90. Southwest wind 5 to 10 mph.

    High: 90 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am.  Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 88. Chance of precipitation is 70%.

    High: 88 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers.  Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 61. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 65. South wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 90. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 67. South wind 5 to 10 mph.
Tuesday
Mostly sunny and hot, with a high near 90. Southwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Saturday
Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.83°N 83.98°W (Elev. 961 ft)
1:06 am EDT May 17, 2026
2am EDT May 17, 2026-6pm EDT May 23, 2026
 
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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