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

73°F

23°C

Humidity 94%
Wind Speed NW 3 mph
Barometer 29.93 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 19 Aug 5:35 am CDT
Extended Forecast for

4 Miles W Albia IA

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms.  Patchy fog.  Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.

    Low: 70 °F

    Slight Chance
    T-storms 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 east 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. Light north northeast 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 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.
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 east 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. Light north northeast 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:
4 Miles W Albia IA
 41.03°N 92.88°W
4:36 am CDT Aug 19, 2026
5am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database