Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Overcast

72°F

22°C

Humidity 100%
Wind Speed S 5 mph
Barometer 29.93 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 19 Aug 4:15 am CDT
Extended Forecast for

5 Miles WNW Albia IA

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly before 5am.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after noon.  Patchy fog before 9am.  Otherwise, partly sunny, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon.  New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 66. Light south southeast wind.

    Low: 66 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly before 5am. Patchy fog after 5am. Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after noon. Patchy fog before 9am. Otherwise, partly sunny, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Calm wind.
Thursday
Sunny, with a high near 82. Calm wind.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 66. Light south southeast wind.
Friday
Sunny, with a high near 85.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Albia IA
 41.05°N 92.88°W
1:26 am CDT Aug 19, 2026
4am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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