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

28°F

-2°C

Humidity 72%
Wind Speed SW 10 mph
Barometer 30.14 in (1021.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 12 Jan 12:54 am CST
Extended Forecast for

4 Miles WNW Janesville IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. West southwest wind 6 to 9 mph.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 43. Southwest wind 6 to 8 mph.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a steady temperature around 36. West southwest wind 7 to 14 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 29 mph.

    High: 46 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. Windy, with a northwest wind 18 to 26 mph, with gusts as high as 36 mph.

    Low: 25 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. Windy.

    High: 28 °F

    Partly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 14. Blustery.

    Low: 14 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. West southwest wind 6 to 9 mph.
Monday
Sunny, with a high near 43. Southwest wind 6 to 8 mph.
Monday Night
Partly cloudy, with a steady temperature around 36. West southwest wind 7 to 14 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 29 mph.
Tuesday Night
Mostly cloudy, with a low around 25. Windy, with a northwest wind 18 to 26 mph, with gusts as high as 36 mph.
Wednesday
Partly sunny, with a high near 28. Windy.
Wednesday Night
Mostly clear, with a low around 14. Blustery.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 29.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 25.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 33. Breezy.
Friday Night
Mostly cloudy, with a low around 11. Blustery.
Saturday
Mostly cloudy, with a high near 18. Blustery.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 24. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Janesville IA
 42.66°N 92.52°W
Last Update:
10:51 pm CST Jan 11, 2026
Forecast Valid:
1am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

Radar & Satellite Image

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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