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.

Fair

58°F

14°C

Humidity 50%
Wind Speed SE 5 mph
Barometer 29.92 in (1013.6 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 29 Mar 7:54 pm CDT
Extended Forecast for

2 Miles WNW Readlyn IA

  • Tonight

    Tonight: Mostly clear, with a low around 43. South wind 6 to 9 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 80. South wind 6 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. South wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    T-storms then
    Rain Likely

  • Tuesday

    Tuesday: A chance of rain and thunderstorms. Partly sunny, with a high near 68. Windy, with a south southwest wind 14 to 19 mph becoming north northwest 20 to 25 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance Rain
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Windy, with a north wind 14 to 22 mph, with gusts as high as 32 mph.

    Low: 33 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 46. Breezy. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Partly Sunny
    then Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain and snow likely. Cloudy, with a low around 30. Windy. Chance of precipitation is 70%.

    Low: 30 °F

    Rain/Snow
    Likely and
    Windy

  • Thursday

    Thursday: Rain and snow likely. Mostly cloudy, with a high near 42. Windy. Chance of precipitation is 60%.

    High: 42 °F

    Rain/Snow
    Likely and
    Windy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 31. Blustery.

    Low: 31 °F

    Chance Rain
    and Blustery

Detailed Forecast

Tonight
Mostly clear, with a low around 43. South wind 6 to 9 mph.
Monday
Increasing clouds, with a high near 80. South wind 6 to 15 mph, with gusts as high as 20 mph.
Monday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. South wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of rain and thunderstorms. Partly sunny, with a high near 68. Windy, with a south southwest wind 14 to 19 mph becoming north northwest 20 to 25 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 33. Windy, with a north wind 14 to 22 mph, with gusts as high as 32 mph.
Wednesday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 46. Breezy. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain and snow likely. Cloudy, with a low around 30. Windy. Chance of precipitation is 70%.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 42. Windy. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 31. Blustery.
Friday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 53. Breezy.
Friday Night
Rain likely. Mostly cloudy, with a low around 41. Breezy. Chance of precipitation is 60%.
Saturday
Rain likely. Mostly cloudy, with a high near 53. Windy. Chance of precipitation is 70%.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34. Windy.
Sunday
Partly sunny, with a high near 50. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Readlyn IA
 42.72°N 92.25°W
Last Update:
6:12 pm CDT Mar 29, 2026
Forecast Valid:
8pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation