Thunderstorms, Some Severe, and Heavy Rainfall Across the East

A cold front moving into the eastern U.S. will bring widespread thunderstorms and locally heavy rain to the eastern states. Excessive rain will be possible across the Mid-South and widespread flash flooding will be possible. Severe thunderstorms with damaging winds may occur in the Mid-Atlantic and Northeast. Out west, windy, dry conditions are keeping fire weather threats elevated-to-critical. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Light Rain

73°F

23°C

Humidity 90%
Wind Speed NW 5 mph
Barometer 30.08 in (1017.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 26 Sep 12:53 am EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am.  Cloudy, with a low around 69. Calm wind.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    Low: 69 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 2pm, then showers and thunderstorms likely after 2pm.  Cloudy, with a high near 77. Southwest wind around 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Showers
    Likely then
    T-storms
    Likely

    High: 77 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm.  Cloudy, with a low around 66. East wind around 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms
    Likely then
    Showers
    Likely

    Low: 66 °F

  • Thursday

    Thursday: Showers and possibly a thunderstorm.  High near 75. Calm wind.  Chance of precipitation is 80%.

    Showers

    High: 75 °F

  • Thursday
    Night

    Thursday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 67. Calm wind.  Chance of precipitation is 60%.

    Showers
    Likely

    Low: 67 °F

  • Friday

    Friday: A 50 percent chance of showers.  Mostly cloudy, with a high near 79.

    Chance
    Showers

    High: 79 °F

  • Friday
    Night

    Friday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 64.

    Chance
    Showers

    Low: 64 °F

  • Saturday

    Saturday: A 30 percent chance of showers.  Partly sunny, with a high near 79.

    Chance
    Showers

    High: 79 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 62.

    Mostly Cloudy

    Low: 62 °F

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 69. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 2pm, then showers and thunderstorms likely after 2pm. Cloudy, with a high near 77. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm. Cloudy, with a low around 66. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm. High near 75. Calm wind. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 79.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 79.
Saturday Night
Mostly cloudy, with a low around 62.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Click Map For Forecast
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.81°N 84.01°W (Elev. 899 ft)
9:20 pm EDT Sep 25, 2018
12am EDT Sep 26, 2018-6pm EDT Oct 1, 2018
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database