Areas of Severe Weather and Flash Flooding

The threat for severe weather and flash flooding continues in several spots across the country. An enhanced risk of severe storms is likely from KS to TX, w/ very large hail and damaging winds being the main concern, while a slight severe threat covers the Mid-Atlantic. Excessive rainfall w/ flooding remains possible from the southern Appalachians into the Mid-Atlantic and over the central Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

66°F

19°C

Humidity 100%
Wind Speed N 5 mph
Barometer 29.82 in
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 19 Jun 4:15 am CDT
Extended Forecast for

Williams Bay WI

  • Overnight

    Overnight: A 40 percent chance of showers.  Mostly cloudy, with a low around 63. Calm wind.

    Chance
    Showers

    Low: 63 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 3pm, then a chance of showers.  Cloudy, with a high near 68. Northeast wind 5 to 10 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 68 °F

  • Wednesday
    Night

    Wednesday Night: Cloudy, with a low around 54. North wind 5 to 10 mph.

    Cloudy

    Low: 54 °F

  • Thursday

    Thursday: Mostly cloudy, with a high near 72. North wind 5 to 10 mph.

    Mostly Cloudy

    High: 72 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm  in the evening.

    Slight Chance
    Showers

    Low: 53 °F

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 74. Light southeast wind increasing to 5 to 10 mph in the morning.

    Partly Sunny
    then Chance
    Showers

    High: 74 °F

  • Friday
    Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 59. East wind around 5 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Showers

    Low: 59 °F

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 80. South wind 5 to 10 mph.

    Chance
    T-storms

    High: 80 °F

  • Saturday
    Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 65.

    Chance
    T-storms

    Low: 65 °F

Detailed Forecast

Overnight
A 40 percent chance of showers. Mostly cloudy, with a low around 63. Calm wind.
Wednesday
Showers and thunderstorms likely before 3pm, then a chance of showers. Cloudy, with a high near 68. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Cloudy, with a low around 54. North wind 5 to 10 mph.
Thursday
Mostly cloudy, with a high near 72. North wind 5 to 10 mph.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Light southeast wind increasing to 5 to 10 mph in the morning.
Friday Night
Showers and possibly a thunderstorm. Low around 59. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind 5 to 10 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 79.
Click Map For Forecast
Point Forecast:
Williams Bay WI
 42.57°N 88.57°W (Elev. 948 ft)
4:08 am CDT Jun 19, 2019
4am CDT Jun 19, 2019-6pm CDT Jun 25, 2019
 
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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