National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Hannibal Regional Airport (KHAE)

Lat: 39.73°NLon: 91.44°WElev: 770ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed SE 6 mph
Barometer 30.03 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Sep 7:35 pm CDT
Extended Forecast for

Hannibal MO

  • Tonight

    Tonight: Mostly clear, with a low around 72. South wind 3 to 5 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 93. Southwest wind 5 to 7 mph.

    High: 93 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 70. Light and variable wind. Chance of precipitation is 30%.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Northeast wind 5 to 8 mph. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 68. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 72. South wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 93. Southwest wind 5 to 7 mph.
Saturday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 70. Light and variable wind. Chance of precipitation is 30%.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Northeast wind 5 to 8 mph. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 68. Chance of precipitation is 70%.
Monday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57.
Tuesday
Mostly cloudy, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Hannibal MO
 39.71°N 91.39°W (Elev. 610 ft)
Last Update:
5:01 pm CDT Sep 18, 2026
Forecast Valid:
7pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation