Severe Thunderstorms and Heavy Rainfall Across the Central Plains and Central Appalachians

Severe thunderstorms producing damaging winds, heavy rainfall, hail and possibly a few tornadoes will continue through tonight across portions of Kansas and Oklahoma. Heavy rainfall will persist across the Central Appalachians through tonight, potentially leading to areas of flooding. The severe weather and heavy rainfall threat will shift into the lower Great Lakes on Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

71°F

22°C

Humidity 87%
Wind Speed SW 13 mph
Barometer 30.01 in (1015.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 17 Jun 11:53 pm EDT
Extended Forecast for

4 Miles S Maryville TN

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms, mainly between 4am and 5am.  Mostly cloudy, with a low around 69. Southwest wind around 10 mph.

    Low: 69 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 2pm and 4pm.  Partly sunny, with a high near 85. Southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    Showers then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph.

    Low: 70 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm.  High near 83. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.  Low around 67. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%.

    Low: 67 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 85. Calm wind becoming north around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a low around 69. Southwest wind around 10 mph.
Wednesday
Showers and thunderstorms likely, mainly between 2pm and 4pm. Partly sunny, with a high near 85. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph.
Juneteenth
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 83. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 67. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 85. Calm wind becoming north around 5 mph.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny and hot, with a high near 91.
Sunday Night
Mostly clear, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 92.
Monday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Maryville TN
 35.69°N 83.97°W (Elev. 1099 ft)
12:42 am EDT Jun 18, 2025
12am EDT Jun 18, 2025-6pm EDT Jun 24, 2025
 
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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