Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Fair

88°F

31°C

Humidity 66%
Wind Speed S 9 mph
Barometer 29.81 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 9 Aug 5:15 pm CDT
Extended Forecast for

Knoxville IA

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 72. South wind 5 to 8 mph becoming east after midnight.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms before 7am.  Partly sunny, with a high near 89. East wind 5 to 7 mph becoming south in the afternoon.

    High: 89 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72. South wind around 6 mph becoming east in the evening.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 6 to 9 mph.

    High: 91 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 71. North northeast wind 5 to 7 mph becoming south in the evening.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 87. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 72. South wind 5 to 8 mph becoming east after midnight.
Monday
A 10 percent chance of showers and thunderstorms before 7am. Partly sunny, with a high near 89. East wind 5 to 7 mph becoming south in the afternoon.
Monday Night
Partly cloudy, with a low around 72. South wind around 6 mph becoming east in the evening.
Tuesday
Partly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 6 to 9 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. North northeast wind 5 to 7 mph becoming south in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 75.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville IA
 41.32°N 93.11°W
4:22 pm CDT Aug 9, 2026
5pm CDT Aug 9, 2026-6pm CDT Aug 16, 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