National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Heavy to Excessive Rainfall Which May Bring Flooding

Monsoon moisture will continue to produce areas of heavy to excessive rainfall and potential flooding across the northern Intermountain West today. Debris flows will be possible over recent wildfire burn areas. Heavy to excessive rainfall and flash flooding will be possible across the central Rockies into the south-central Plains and lower Mississippi Valley through Thursday. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

75°F

24°C

Humidity 40%
Wind Speed N 9 mph
Barometer 30.23 in (1023.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 27 Aug 1:53 pm EDT
Extended Forecast for

Maryville TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. North wind around 5 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. North wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Decreasing
    Clouds

  • Friday

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

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Northeast wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Northeast wind around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 79. North wind around 5 mph.
Tonight
Mostly cloudy, with a low around 55. North wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming north around 5 mph.
Friday Night
Mostly clear, with a low around 60. Northeast wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 85. Northeast wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
Labor Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Maryville TN
 35.76°N 83.99°W (Elev. 886 ft)
Last Update:
1:51 pm EDT Aug 27, 2025
Forecast Valid:
2pm EDT Aug 27, 2025-6pm EDT Sep 2, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation