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

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fog/Mist

32°F

0°C

Humidity 100%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 32°F (0°C)
Visibility 3.00 mi
Last update 4 Mar 1:35 am CST
Extended Forecast for

Elgin IA

Dense Fog Advisory March 4, 01:42am until March 4, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 4, 01:42am until March 4, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 26 °F

    Dense Fog

  • Wednesday

    Wednesday: Widespread dense fog before 10am. Otherwise, mostly sunny, with a high near 52. Calm wind becoming southeast around 5 mph.

    High: 52 °F

    Dense Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly between 3am and 5am. Increasing clouds, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 53. Calm wind becoming southeast around 5 mph.

    High: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Calm wind becoming southeast 5 to 8 mph in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 64. Southeast wind 9 to 13 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 34. Southwest wind 9 to 14 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 34 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Overnight
Widespread dense fog. Otherwise, partly cloudy, with a low around 26. Calm wind.
Wednesday
Widespread dense fog before 10am. Otherwise, mostly sunny, with a high near 52. Calm wind becoming southeast around 5 mph.
Wednesday Night
A 30 percent chance of showers, mainly between 3am and 5am. Increasing clouds, with a low around 37. Calm wind.
Thursday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 53. Calm wind becoming southeast around 5 mph.
Thursday Night
Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Calm wind becoming southeast 5 to 8 mph in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 64. Southeast wind 9 to 13 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 34. Southwest wind 9 to 14 mph becoming northwest after midnight. Chance of precipitation is 80%.
Saturday
Mostly sunny, with a high near 49. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 34. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 59. Breezy, with a southwest wind 11 to 17 mph.
Sunday Night
Mostly clear, with a low around 40. Southwest wind around 9 mph.
Monday
Sunny, with a high near 68. South wind 8 to 15 mph, with gusts as high as 23 mph.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 45. South wind around 11 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 60. Breezy, with a southwest wind 11 to 16 mph becoming west in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Elgin IA
 42.97°N 91.62°W
Last Update:
12:26 am CST Mar 4, 2026
Forecast Valid:
1am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation