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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Light Rain

61°F

16°C

Humidity 100%
Wind Speed E 13 mph
Barometer 29.44 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 17 Jun 11:55 am CDT
Extended Forecast for

Farmington IA

Flood Watch June 17, 12:04pm until June 17, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 17, 12:04pm until June 17, 07:00pm

    NOW until 7:00pm Wed

    Flood Watch

  • This Afternoon

    High: 85 °F

    Showers
    Likely

  • Tonight

    Tonight: Mostly clear, with a low around 60. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 3pm. Mostly cloudy early, then gradual clearing, with a high near 85. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Tonight
Mostly clear, with a low around 60. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 78. Northwest wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 83.
Friday Night
Mostly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63.
Sunday
Showers, with thunderstorms also possible after 1pm. High near 79. Chance of precipitation is 90%.
Sunday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Farmington IA
 40.64°N 91.73°W (Elev. 643 ft)
Last Update:
11:52 am CDT Jun 17, 2026
Forecast Valid:
12pm CDT Jun 17, 2026-6pm CDT Jun 23, 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