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.

A Few Clouds

74°F

23°C

Humidity 71%
Wind Speed S 12 mph
Barometer 29.62 in (1002.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 13 Apr 7:54 pm CDT
Extended Forecast for

Waterloo IA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 11pm and midnight. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 59. Breezy, with a south southwest wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms and
    Breezy then
    Patchy Fog

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 78. South southwest wind 5 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Patchy Fog
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northwest wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. East wind 6 to 11 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. South wind 7 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers. Sunny, with a high near 75.

    High: 75 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 80. Windy. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely and
    Windy

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 42. Breezy. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 11pm and midnight. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 59. Breezy, with a south southwest wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 78. South southwest wind 5 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northwest wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. East wind 6 to 11 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. South wind 7 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of showers. Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 56.
Friday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 80. Windy. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 42. Breezy. Chance of precipitation is 70%.
Saturday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 53. Windy.
Saturday Night
Mostly cloudy, with a low around 31. Blustery.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 64. Breezy.
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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:
8:07 pm CDT Apr 13, 2026
Forecast Valid:
8pm CDT Apr 13, 2026-6pm CDT Apr 20, 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