Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

72°F

22°C

Humidity 91%
Wind Speed W 3 mph
Barometer 29.75 in (1006.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 2 Aug 7:53 am EDT
Extended Forecast for

3 Miles NW Knoxville TN

  • Today

    Today: A chance of showers and thunderstorms before 5pm, then a slight chance of showers.  Partly sunny, with a high near 84. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 69. West wind around 5 mph becoming calm  in the evening.

    Low: 69 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 2pm.  Partly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 8pm.  Partly cloudy, with a low around 69. Calm wind.  Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely then
    Partly Cloudy

  • Tuesday

    Tuesday: 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 86. Calm wind.  Chance of precipitation is 60%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely before 8pm.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms before 5pm, then a slight chance of showers. Partly sunny, with a high near 84. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 69. West wind around 5 mph becoming calm in the evening.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 8pm. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.
Tuesday
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 86. Calm wind. Chance of precipitation is 60%.
Tuesday Night
Showers likely before 8pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Knoxville TN
 36.01°N 83.99°W (Elev. 1099 ft)
7:06 am EDT Aug 2, 2026
8am EDT Aug 2, 2026-6pm EDT Aug 8, 2026
 
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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