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

Hannibal Regional Airport (KHAE)

Lat: 39.73°NLon: 91.44°WElev: 770ft.

Thunderstorm Light Rain in Vicinity

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 70°F (21°C)
Visibility 5.00 mi
Last update 19 Aug 2:15 am CDT
Extended Forecast for

4 Miles SSE Monticello MO

  • Overnight

    Overnight: Isolated showers and thunderstorms.  Cloudy, with a low around 68. Light south wind.  Chance of precipitation is 20%.

    Low: 68 °F

    Isolated
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 3pm. Some of the storms could produce heavy rainfall.  Cloudy, then gradually becoming mostly sunny, with a high near 81. Light and variable wind.  Chance of precipitation is 60%.

    High: 81 °F

    Mostly Cloudy
    then Heavy
    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Mostly clear, with a low around 66.

    Low: 66 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

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

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
Isolated showers and thunderstorms. Cloudy, with a low around 68. Light south wind. Chance of precipitation is 20%.
Wednesday
Showers and thunderstorms likely, mainly after 3pm. Some of the storms could produce heavy rainfall. Cloudy, then gradually becoming mostly sunny, with a high near 81. Light and variable wind. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. Calm wind.
Thursday
Sunny, with a high near 82. Light and variable wind.
Thursday Night
Mostly clear, with a low around 65. Calm wind.
Friday
Sunny, with a high near 85.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Monticello MO
 40.07°N 91.66°W (Elev. 541 ft)
1:21 am CDT Aug 19, 2026
2am CDT Aug 19, 2026-6pm CDT Aug 25, 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