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.

Fair

59°F

15°C

Humidity 51%
Wind Speed N 9 mph
Barometer 30.22 in (1023.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 20 May 6:54 pm CDT
Extended Forecast for

Shell Rock IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Northeast wind 5 to 9 mph becoming east southeast after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 61. East wind 11 to 14 mph, with gusts as high as 20 mph.

    High: 61 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 44. East wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 62. Breezy, with an east wind 13 to 16 mph, with gusts as high as 24 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Slight Chance
    Showers then
    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 47. East wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Northeast wind 5 to 9 mph becoming east southeast after midnight.
Thursday
Mostly cloudy, with a high near 61. East wind 11 to 14 mph, with gusts as high as 20 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 44. East wind 11 to 13 mph, with gusts as high as 21 mph.
Friday
A 50 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 62. Breezy, with an east wind 13 to 16 mph, with gusts as high as 24 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 47. East wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 52.
Memorial Day
Sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shell Rock IA
 42.71°N 92.58°W
Last Update:
6:11 pm CDT May 20, 2026
Forecast Valid:
7pm CDT May 20, 2026-6pm CDT May 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