Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast and Breezy

52°F

11°C

Humidity 72%
Wind Speed E 21 mph
Barometer 29.87 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 20 May 2:10 am CDT
Extended Forecast for

Janesville WI

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am.  Cloudy, with a low around 46. Windy, with an east wind 20 to 25 mph, with gusts as high as 35 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely and
    Windy

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  High near 51. Windy, with an east wind 20 to 25 mph, with gusts as high as 40 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 51 °F

    Showers and
    Windy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 1am, then showers likely after 1am.  Cloudy, with a low around 46. Breezy, with an east wind 10 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely and
    Breezy

  • Wednesday

    Wednesday: Showers.  High near 52. Northeast wind around 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly before 1am.  Mostly cloudy, with a low around 44. North wind 5 to 10 mph.

    Low: 44 °F

    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers.  Partly sunny, with a high near 60. North wind 10 to 15 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. North wind 5 to 10 mph.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 61. North wind 5 to 10 mph.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 46. Windy, with an east wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm. High near 51. Windy, with an east wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tuesday Night
Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 1am, then showers likely after 1am. Cloudy, with a low around 46. Breezy, with an east wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers. High near 52. Northeast wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 44. North wind 5 to 10 mph.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 60. North wind 10 to 15 mph.
Thursday Night
Partly cloudy, with a low around 39. North wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 61. North wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 42.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 65.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 45.
Memorial Day
A 40 percent chance of showers. Mostly cloudy, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.04°W (Elev. 774 ft)
2:08 am CDT May 20, 2025
2am CDT May 20, 2025-6pm CDT May 26, 2025
 
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