Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

76°F

24°C

Humidity 82%
Wind Speed Calm
Barometer 30.07 in (1017.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 12 Aug 2:53 am EDT
Extended Forecast for

Walland TN

  • Overnight

    Overnight: A 10 percent chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 70. North wind around 5 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 4pm, then showers and thunderstorms likely after 4pm.  High near 83. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then a chance of showers and thunderstorms after 11pm.  Mostly cloudy, with a low around 70. South wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 84. Southwest wind around 5 mph.  Chance of precipitation is 70%.

    High: 84 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am.  Mostly cloudy, with a low around 70. South wind around 5 mph.  Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 2pm.  Partly sunny, with a high near 86. Calm wind becoming west around 5 mph.

    High: 86 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 69. West wind around 5 mph becoming calm.

    Low: 69 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 70. North wind around 5 mph.
Tuesday
Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 4pm, then showers and thunderstorms likely after 4pm. High near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 84. Southwest wind around 5 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 86. Calm wind becoming west around 5 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. West wind around 5 mph becoming calm.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89.
Saturday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Sunday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Walland TN
 35.73°N 83.83°W (Elev. 1893 ft)
1:38 am EDT Aug 12, 2025
3am EDT Aug 12, 2025-6pm EDT Aug 18, 2025
 
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Additional Resources

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