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.

Mostly Cloudy

78°F

26°C

Humidity 39%
Wind Speed NW 6 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Jun 5:54 pm CDT
Extended Forecast for

Readlyn IA

  • Tonight

    Tonight: A slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 56. Northwest wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 20%.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly between 7am and 4pm. Cloudy, with a high near 68. Breezy, with an east wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 53. East northeast wind 9 to 15 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Northeast wind 8 to 10 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. East wind 3 to 6 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Breezy.

    High: 74 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 56. Northwest wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 20%.
Sunday
Showers likely, mainly between 7am and 4pm. Cloudy, with a high near 68. Breezy, with an east wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 53. East northeast wind 9 to 15 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Northeast wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 54. East wind 3 to 6 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 74. Breezy.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Readlyn IA
 42.7°N 92.22°W
Last Update:
5:56 pm CDT Jun 20, 2026
Forecast Valid:
6pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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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