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 Calm
Barometer 29.69 in (1006.1 mb)
Dewpoint 36°F (2°C)
Visibility 0.50 mi
Last update 26 Dec 1:54 am CST
Extended Forecast for

Waterloo IA

Dense Fog Advisory December 26, 02:19am until December 26, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 26, 02:19am until December 26, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Overnight

    Low: 37 °F

    Slight Chance
    Rain and
    Areas Fog

  • Friday

    Friday: Areas of fog before 1pm, then patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 45. Northwest wind 5 to 10 mph.

    High: 45 °F

    Areas Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Calm wind becoming southeast 5 to 7 mph after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

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

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34. Southeast wind 5 to 9 mph becoming north northwest after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and snow. Mostly cloudy, with a high near 42. Windy. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Chance
    Rain/Snow and
    Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 9. Windy.

    Low: 9 °F

    Mostly Cloudy
    and Windy

  • Monday

    Monday: Mostly sunny, with a high near 19. Windy.

    High: 19 °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. Areas of fog. Otherwise, cloudy, with a low around 37. Southeast wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Friday
Areas of fog before 1pm, then patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 45. Northwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 34. Calm wind becoming southeast 5 to 7 mph after midnight.
Saturday
Mostly cloudy, with a high near 49. Southeast wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 34. Southeast wind 5 to 9 mph becoming north northwest after midnight.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 42. Windy. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly cloudy, with a low around 9. Windy.
Monday
Mostly sunny, with a high near 19. Windy.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 11.
New Year's Day
Mostly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

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

Radar & Satellite Image

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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