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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

72°F

22°C

Humidity 83%
Wind Speed N 14 G 20 mph
Barometer 29.69 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Jun 4:45 pm CDT
Extended Forecast for

3 Miles N Poplar Grove IL

Flood Advisory until June 18, 08:00pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until June 18, 08:00pm

    NOW until 8:00pm Wed

    Flood Advisory

  • This Afternoon

    High: 71 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 61. Northwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Heavy Rain
    then Chance
    Showers

  • Juneteenth

    Juneteenth: A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Slight Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 84. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 72. Chance of precipitation is 10%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Breezy.

    High: 93 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Steady temperature around 71. North northeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 61. Northwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Juneteenth
A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 63. Southwest wind around 5 mph, with gusts as high as 10 mph.
Friday
A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 84. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 72. Chance of precipitation is 10%.
Saturday
Sunny, with a high near 93. Breezy.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny and hot, with a high near 95. Breezy.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 94.
Monday Night
A chance of showers. Mostly clear, with a low around 72.
Tuesday
A chance of showers. Mostly sunny, with a high near 90.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
Showers likely. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Poplar Grove IL
 42.4°N 88.82°W
Last Update:
4:11 pm CDT Jun 18, 2025
Forecast Valid:
5pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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