Showers and Thunderstorms from the Southern Plains into the Ohio Valley; Record Warmth in the Central U.S.

Heavy rain and widely scattered severe storms are expected over portions of the central and southern Plains into the Ohio Valley. Unseasonable warmth will continue for a few more days across the Midwest, Southeast, and Mid-Atlantic where several daily record highs could fall. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Overcast

66°F

19°C

Humidity 83%
Wind Speed N 6 mph
Barometer 30.07 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Oct 11:55 am CDT
Extended Forecast for

Donnellson IA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 66. North wind around 5 mph.

    High: 66 °F

    Cloudy

  • Tonight

    Tonight: A chance of showers, then showers likely and possibly a thunderstorm after 4am.  Cloudy, with a low around 58. East wind around 5 mph.  Chance of precipitation is 60%.

    Low: 58 °F

    Cloudy then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm.  High near 68. East wind around 5 mph becoming west in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 68 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers between 7pm and 1am.  Cloudy, then gradually becoming partly cloudy, with a low around 45. Breezy, with a northwest wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 35 mph.  Chance of precipitation is 60%.

    Low: 45 °F

    Showers
    Likely then
    Chance
    Showers and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 55. Breezy.

    High: 55 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Patchy frost after 5am.  Otherwise, mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 8am.  Otherwise, sunny, with a high near 59.

    High: 59 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 66. North wind around 5 mph.
Tonight
A chance of showers, then showers likely and possibly a thunderstorm after 4am. Cloudy, with a low around 58. East wind around 5 mph. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. High near 68. East wind around 5 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 45. Breezy, with a northwest wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 55. Breezy.
Friday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 36.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 59.
Saturday Night
Clear, with a low around 41.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Donnellson IA
 40.64°N 91.56°W (Elev. 705 ft)
8:21 am CDT Oct 14, 2026
12pm CDT Oct 14, 2026-6pm CDT Oct 20, 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