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

81°F

27°C

Humidity 72%
Wind Speed S 12 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 71°F (22°C)
Visibility 9.00 mi
Heat Index85°F (29°C)
Last update 16 Jun 11:54 am CDT
Extended Forecast for

Janesville IA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 84. South wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 67. South wind 6 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 83. West southwest wind 5 to 7 mph becoming north in the morning. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 64. North wind around 7 mph becoming east in the evening. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 64 °F

    Showers
    Likely then
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. East northeast wind 9 to 13 mph becoming southwest in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 87. Windy.

    High: 87 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Windy

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 84. South wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 67. South wind 6 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 83. West southwest wind 5 to 7 mph becoming north in the morning. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 64. North wind around 7 mph becoming east in the evening. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. East northeast wind 9 to 13 mph becoming southwest in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Partly cloudy, with a low around 59.
Juneteenth
Sunny, with a high near 85.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 87. Windy.
Friday Night
Mostly clear, with a low around 74. Breezy.
Saturday
Sunny, with a high near 93. Breezy.
Saturday Night
Mostly clear, with a low around 74. Breezy.
Sunday
Sunny, with a high near 91. Windy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Janesville IA
 42.64°N 92.46°W
Last Update:
10:23 am CDT Jun 16, 2025
Forecast Valid:
12pm CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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