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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

73°F

23°C

Humidity 90%
Wind Speed Calm
Barometer 30.05 in (1016.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 17 Aug 5:53 am EDT
Extended Forecast for

4 Miles SW Townsend TN

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 7pm and 8pm. Mostly clear, with a low around 70. Calm wind. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 68. East wind around 5 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87. Calm wind becoming northwest around 5 mph.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 69. Calm wind becoming southeast around 5 mph.

    Low: 69 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Tonight
A slight chance of showers and thunderstorms between 7pm and 8pm. Mostly clear, with a low around 70. Calm wind. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 68. East wind around 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87. Calm wind becoming northwest around 5 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 69. Calm wind becoming southeast around 5 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 67.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Townsend TN
 35.64°N 83.81°W (Elev. 2201 ft)
Last Update:
2:22 am EDT Aug 17, 2025
Forecast Valid:
6am EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation