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.

Light Rain

66°F

19°C

Humidity 75%
Wind Speed E 5 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 21 Jun 9:54 am CDT
Extended Forecast for

4 Miles SW Janesville IA

  • Today

    Today: Showers, mainly before 4pm. High near 68. East southeast wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Showers

  • Tonight

    Tonight: A 30 percent chance of showers between 8pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 52. East northeast wind 5 to 10 mph becoming light northeast. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. North northeast wind around 6 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Light south southeast wind becoming south 5 to 10 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 59. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Showers, mainly before 4pm. High near 68. East southeast wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A 30 percent chance of showers between 8pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 52. East northeast wind 5 to 10 mph becoming light northeast. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 76. North northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 77. Light south southeast wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 59. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 81. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Janesville IA
 42.6°N 92.52°W
Last Update:
9:52 am CDT Jun 21, 2026
Forecast Valid:
10am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
Forecast Discussion
 
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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