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.

Fair

33°F

1°C

Humidity 70%
Wind Speed Calm
Barometer 30.27 in (1025.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 19 Apr 11:54 pm CDT
Extended Forecast for

Waterloo IA

Freeze Warning until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until April 20, 09:00am

    NOW until 9:00am Mon

    Freeze Warning

  • Overnight

    Low: 30 °F

    Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 60. South wind 5 to 15 mph, with gusts as high as 23 mph.

    High: 60 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. South wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 78. South southwest wind 7 to 9 mph becoming west northwest in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 49. North wind around 6 mph becoming east after midnight.

    Low: 49 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. Breezy.

    Low: 60 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Windy. Chance of precipitation is 50%.

    High: 74 °F

    Windy. Slight
    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Widespread frost after 5am. Otherwise, clear, with a low around 30. Light and variable wind.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 60. South wind 5 to 15 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 50. South wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 78. South southwest wind 7 to 9 mph becoming west northwest in the afternoon.
Tuesday Night
Clear, with a low around 49. North wind around 6 mph becoming east after midnight.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 60. Breezy.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Windy. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Windy. Chance of precipitation is 70%.
Friday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 62. Breezy.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
10:36 pm CDT Apr 19, 2026
Forecast Valid:
12am CDT Apr 20, 2026-6pm CDT Apr 26, 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