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.

Rain

73°F

23°C

Humidity 90%
Wind Speed S 14 mph
Barometer 29.77 in (1007.1 mb)
Dewpoint 70°F (21°C)
Visibility 8.00 mi
Last update 2 Aug 12:53 am EDT
Extended Forecast for

2 Miles N Knoxville, McGhee Tyson Airport TN

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am.  Cloudy, with a low around 72. South wind around 10 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 86. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph.  Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 84. Light southwest wind increasing to 5 to 10 mph in the morning.  Chance of precipitation is 80%.

    High: 84 °F

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Low around 70. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%.

    Low: 70 °F

    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers and thunderstorms likely after 11am.  Mostly sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.  Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

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

    Low: 70 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 8am.  Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Cloudy, with a low around 72. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly cloudy, then gradually becoming sunny, with a high near 86. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 84. Light southwest wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 70. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Tuesday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely, mainly 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 after 8am. Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Knoxville, McGhee Tyson Airport TN
 35.83°N 83.98°W (Elev. 961 ft)
1:06 am EDT Aug 2, 2026
1am EDT Aug 2, 2026-6pm EDT Aug 8, 2026
 
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Additional Resources

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