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 >

Current conditions at

Perryville Regional Airport (KPCD)

Lat: 37.87°NLon: 89.86°WElev: 372ft.

Fair

73°F

23°C

Humidity 93%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Aug 9:15 pm CDT
Extended Forecast for

2 Miles SE Sainte Genevieve MO

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Increasing clouds, with a low around 68. Light south wind.

    Low: 68 °F

    Clear then
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 10am.  High near 84. North wind 5 to 8 mph becoming south in the afternoon.  Chance of precipitation is 80%.

    High: 84 °F

    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am.  Increasing clouds, with a low around 66. East wind 5 to 7 mph becoming north after midnight.

    Low: 66 °F

    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 84. Northeast wind 3 to 6 mph.  Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Light northeast wind.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

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

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 68. Light south wind.
Wednesday
Showers and thunderstorms, mainly before 10am. High near 84. North wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 80%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Increasing clouds, with a low around 66. East wind 5 to 7 mph becoming north after midnight.
Thursday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. Northeast wind 3 to 6 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 64. Light northeast wind.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Sainte Genevieve MO
 37.95°N 90.01°W (Elev. 381 ft)
8:51 pm CDT Aug 18, 2026
9pm CDT Aug 18, 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