Areas of Excessive Rainfall and Severe Thunderstorms; Fire Weather Concerns in the Northern Plains and Four Corners Region

Widespread showers and thunderstorms may bring areas of flash flooding across much of the Southern Plains into the Gulf Coast region and the upper Ohio River Valley into the Mid-Atlantic. A large Pacific storm will bring widespread rain, gusty winds, and mountain snow to California and the Great Basin. Fire weather concerns expected in the Northern Plains and the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Light Rain

78°F

26°C

Humidity 71%
Wind Speed S 12 mph
Barometer 30.02 in (1015.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 26 May 8:53 pm EDT
Extended Forecast for

4 Miles SW Maryville TN

  • Tonight

    Tonight: Showers and thunderstorms likely before 5am, then a chance of showers.  Mostly cloudy, with a low around 66. Southwest wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 81. Southwest wind 5 to 10 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely.  Increasing clouds, with a low around 66. Southwest wind around 5 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 11am.  Mostly cloudy, with a high near 81. Calm wind becoming west around 5 mph.  Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm.  Mostly cloudy, with a low around 63. Northeast wind around 5 mph.  Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 81. Northeast wind around 5 mph becoming calm  in the morning.  Chance of precipitation is 40%.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am.  Mostly cloudy, with a low around 64. Calm wind.  Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 66. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely. Increasing clouds, with a low around 66. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 81. Calm wind becoming west around 5 mph. Chance of precipitation is 70%.
Thursday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 63. Northeast wind around 5 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. Northeast wind around 5 mph becoming calm in the morning. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Maryville TN
 35.72°N 84.02°W (Elev. 1115 ft)
7:06 pm EDT May 26, 2026
9pm EDT May 26, 2026-6pm EDT Jun 2, 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