Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

SULLIVAN (KUUV)

Lat: 38.23°NLon: 91.16°WElev: 933ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 29.92 in
Dewpoint N/A
Visibility 10.00 mi
Last update 19 Aug 8:15 pm CDT
Extended Forecast for

2 Miles NE Leasburg MO

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before midnight.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 68. Light northeast wind.

    Low: 68 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. Light north wind.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 84. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 68. Light northeast wind.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 65. Light north wind.
Friday
Partly sunny, then gradually becoming sunny, with a high near 87. Light and variable wind.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 65.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 68.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 88.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Leasburg MO
 38.11°N 91.27°W (Elev. 948 ft)
6:01 pm CDT Aug 19, 2026
8pm CDT Aug 19, 2026-6pm CDT Aug 26, 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