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

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fog

36°F

2°C

Humidity 100%
Wind Speed NW 8 mph
Barometer 29.71 in (1006.9 mb)
Dewpoint 36°F (2°C)
Visibility 0.50 mi
Wind Chill30°F (-1°C)
Last update 26 Dec 2:54 am CST
Extended Forecast for

Waterloo IA

Dense Fog Advisory December 26, 03:01am until December 26, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 26, 03:01am until December 26, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Overnight

    Low: 37 °F

    Slight Chance
    Rain and
    Dense Fog

  • Friday

    Friday: Areas of dense fog before 10am. Otherwise, mostly cloudy, with a high near 44. Northwest wind 5 to 10 mph.

    High: 44 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Friday Night

    Friday Night: Widespread dense fog, mainly between 10pm and 2am. Otherwise, mostly cloudy, with a low around 36. Calm wind becoming south southeast 5 to 8 mph after midnight.

    Low: 36 °F

    Dense Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 46. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 46 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. Light and variable wind becoming north northwest 5 to 9 mph after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain before noon, then a chance of rain and snow between noon and 3pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 40. Windy. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 40 °F

    Chance
    Rain/Snow and
    Windy

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 10. Windy.

    Low: 10 °F

    Windy. Slight
    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 20. Windy.

    High: 20 °F

    Mostly Sunny
    and Windy

Detailed Forecast

Overnight
A slight chance of rain before 4am, then a slight chance of drizzle between 4am and 5am. Widespread dense fog, mainly between 4am and 5am. Otherwise, cloudy, with a low around 37. Light west wind. Chance of precipitation is 20%.
Friday
Areas of dense fog before 10am. Otherwise, mostly cloudy, with a high near 44. Northwest wind 5 to 10 mph.
Friday Night
Widespread dense fog, mainly between 10pm and 2am. Otherwise, mostly cloudy, with a low around 36. Calm wind becoming south southeast 5 to 8 mph after midnight.
Saturday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 46. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 39. Light and variable wind becoming north northwest 5 to 9 mph after midnight.
Sunday
A slight chance of rain before noon, then a chance of rain and snow between noon and 3pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 40. Windy. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 10. Windy.
Monday
Mostly sunny, with a high near 20. Windy.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 25.
Wednesday Night
Mostly cloudy, with a low around 9.
New Year's Day
Mostly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
2:36 am CST Dec 26, 2025
Forecast Valid:
3am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation