National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hurricane Isaias to Approach the Northern Gulf Coast on Friday

Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fair

66°F

19°C

Humidity 43%
Wind Speed Calm
Barometer 30.13 in (1020.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 8 Oct 10:54 am CDT
Extended Forecast for

Janesville IA

  • Today

    Today: Sunny, with a high near 73. Calm wind.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers before 1am, then a slight chance of showers after 5am. Increasing clouds, with a low around 53. Calm wind becoming east southeast around 6 mph after midnight. Chance of precipitation is 20%.

    Low: 53 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy through mid morning, then gradual clearing, with a high near 75. Southeast wind 7 to 14 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. South southeast wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Breezy, with a south wind 14 to 20 mph, with gusts as high as 28 mph.

    High: 80 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. Breezy.

    Low: 60 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 73. Calm wind.
Tonight
A slight chance of showers before 1am, then a slight chance of showers after 5am. Increasing clouds, with a low around 53. Calm wind becoming east southeast around 6 mph after midnight. Chance of precipitation is 20%.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy through mid morning, then gradual clearing, with a high near 75. Southeast wind 7 to 14 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 62. South southeast wind 11 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 80. Breezy, with a south wind 14 to 20 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 60. Breezy.
Sunday
Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 60.
Columbus Day
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville IA
 42.66°N 92.46°W
Last Update:
11:37 am CDT Oct 8, 2026
Forecast Valid:
11am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
Forecast Discussion
 
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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