Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

74°F

23°C

Humidity 82%
Wind Speed NE 3 mph
Barometer 29.99 in (1014.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 26 Aug 11:53 pm EDT
Extended Forecast for

2 Miles WSW Seymour TN

  • Overnight

    Overnight: Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers after 4am.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 68. South wind around 5 mph becoming calm.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. Northeast wind around 5 mph becoming calm.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 90. Calm wind.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 91.

    High: 91 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 68. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 68. South wind around 5 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 66. Northeast wind around 5 mph becoming calm.
Saturday
Sunny and hot, with a high near 90. Calm wind.
Saturday Night
Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm.
Sunday
Sunny and hot, with a high near 91.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Sunny and hot, with a high near 91.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Seymour TN
 35.86°N 83.81°W (Elev. 994 ft)
7:06 pm EDT Aug 26, 2026
12am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database