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

Weekend Preview: Monsoon Flood Threat and Heat In A Few Locations

This weekend will be busy with a few weather hazards across the U.S. Increasing monsoonal moisture will result in heavy rain and thunderstorms with the potential for flash flooding and debris flows near vulnerable burn scars in the Southwest, Great Basin and parts of the Rockies. Also, summer heat with excessive warnings and advisories will persist in the South and return in the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

80°F

27°C

Humidity 74%
Wind Speed SW 3 mph
Barometer 30.02 in (1015.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 30 Jul 11:53 am EDT
Extended Forecast for

3 Miles E Cosby TN

  • This
    Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Northwest wind around 5 mph.

    Slight Chance
    T-storms

    High: 83 °F

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 65. West wind around 5 mph becoming calm in the evening.

    Partly Cloudy
    then Patchy
    Fog

    Low: 65 °F

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.

    Patchy Fog
    then Sunny

    High: 87 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67. Northwest wind 5 to 10 mph becoming south in the evening.

    Slight Chance
    T-storms then
    Chance
    Showers

    Low: 67 °F

  • Sunday

    Sunday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. West wind around 5 mph. Chance of precipitation is 60%.

    Showers
    Likely

    High: 81 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 64 °F

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Calm wind becoming northeast around 5 mph. Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 80 °F

  • Monday
    Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 62 °F

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.

    Chance
    Showers then
    Chance
    T-storms

    High: 81 °F

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Northwest wind around 5 mph.
Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 65. West wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 7am. Otherwise, sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67. Northwest wind 5 to 10 mph becoming south in the evening.
Sunday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. West wind around 5 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Calm wind becoming northeast around 5 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 60.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
3 Miles E Cosby TN
 35.82°N 83.21°W (Elev. 2418 ft)
Last Update:
10:46 am EDT Jul 30, 2021
Forecast Valid:
12pm EDT Jul 30, 2021-6pm EDT Aug 5, 2021
 
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