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 94%
Wind Speed NW 3 mph
Barometer 29.73 in (1005.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 2 Aug 5:53 am EDT
Extended Forecast for

4 Miles W Maryville TN

  • Overnight

    Overnight: A 20 percent chance of showers.  Mostly cloudy, with a low around 71. Southwest wind around 5 mph.

    Low: 71 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Partly sunny, with a high near 85. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: 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
    Showers then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely, mainly between 3pm and 4pm.  Partly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 84 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms 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 becoming west around 5 mph.  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. South wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Mostly sunny, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am.  Partly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 71. Southwest wind around 5 mph.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 85. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
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
Showers and thunderstorms likely, mainly between 3pm and 4pm. Partly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm. Chance of precipitation is 30%.
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 becoming west around 5 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely before 8pm. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Thursday
A 40 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. Partly cloudy, with a low around 72.
Friday
A 50 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 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Maryville TN
 35.74°N 84.05°W (Elev. 997 ft)
2:26 am EDT Aug 2, 2026
5am 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