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

42°F

6°C

Humidity 76%
Wind Speed E 6 mph
Barometer 30.09 in (1019.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 3 Mar 12:54 pm CST
Extended Forecast for

Waterloo IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 45. Light east northeast wind.

    High: 45 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 30. Light northeast wind.

    Low: 30 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A slight chance of drizzle after 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 51. East southeast wind 3 to 6 mph.

    High: 51 °F

    Patchy Fog
    then Slight
    Chance
    Drizzle

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly after midnight. Patchy fog between 10pm and midnight. Otherwise, mostly cloudy, with a low around 39. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 56. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 56 °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 44. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. High near 66. Chance of precipitation is 100%.

    High: 66 °F

    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 45. Light east northeast wind.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 30. Light northeast wind.
Wednesday
A slight chance of drizzle after 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 51. East southeast wind 3 to 6 mph.
Wednesday Night
A 50 percent chance of showers, mainly after midnight. Patchy fog between 10pm and midnight. Otherwise, mostly cloudy, with a low around 39. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 56. Calm wind becoming south southeast around 6 mph in the afternoon.
Thursday Night
Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. High near 66. Chance of precipitation is 100%.
Friday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IA
 42.49°N 92.35°W
Last Update:
12:32 pm CST Mar 3, 2026
Forecast Valid:
1pm CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
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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