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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

61°F

16°C

Humidity 83%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 4 Oct 12:50 am CDT
Extended Forecast for

3 Miles N Poplar Grove IL

  • Overnight

    Overnight: Mostly clear, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. South wind around 10 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 62. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 50%.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 56. South wind around 5 mph.
Saturday
Sunny, with a high near 87. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 62. South wind around 10 mph.
Sunday
Sunny, with a high near 84. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 62. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 71.
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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:
12:56 am CDT Oct 4, 2025
Forecast Valid:
1am CDT Oct 4, 2025-6pm CDT Oct 10, 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