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

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Overcast

54°F

12°C

Humidity 40%
Wind Speed S 14 mph
Barometer 29.86 in (1011.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 3 May 3:54 am CDT
Extended Forecast for

Waterloo IA

  • Overnight

    Overnight: A 40 percent chance of showers. Cloudy, with a steady temperature around 51. South southwest wind around 13 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Chance
    Showers

  • Sunday

    Sunday: A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind 11 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 72 °F

    Slight Chance
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. West northwest wind 5 to 8 mph becoming light and variable.

    Low: 46 °F

    Clear

  • Monday

    Monday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 78. Breezy, with a southwest wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Sunny then
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 44. North wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers. Mostly cloudy, with a high near 57.

    High: 57 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers. Cloudy, with a steady temperature around 51. South southwest wind around 13 mph, with gusts as high as 20 mph.
Sunday
A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind 11 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Clear, with a low around 46. West northwest wind 5 to 8 mph becoming light and variable.
Monday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 78. Breezy, with a southwest wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 44. North wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
2:31 am CDT May 3, 2026
Forecast Valid:
3am CDT May 3, 2026-6pm CDT May 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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