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

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fog/Mist

32°F

0°C

Humidity 93%
Wind Speed S 6 mph
Barometer 29.84 in
Dewpoint 30°F (-1°C)
Visibility 3.00 mi
Wind Chill26°F (-3°C)
Last update 7 Jan 12:55 am CST
Extended Forecast for

Dallas City IL

Dense Fog Advisory until January 7, 11:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until January 7, 11:00am

    NOW until 11:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 33 °F

    Patchy Fog

  • Wednesday

    Wednesday: Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 55. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 55 °F

    Dense Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 42. South wind around 10 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain. High near 56. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 40%.

    High: 37 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 33. West wind around 5 mph becoming calm.
Wednesday
Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 55. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 42. South wind around 10 mph.
Thursday
Rain. High near 56. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 45.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32.
Saturday
A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dallas City IL
 40.63°N 91.18°W (Elev. 594 ft)
Last Update:
12:01 am CST Jan 7, 2026
Forecast Valid:
1am CST Jan 7, 2026-6pm CST Jan 13, 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