Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

12°F

-11°C

Humidity 67%
Wind Speed SW 13 mph
Barometer 29.89 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 18 Jan 1:45 pm CST
Extended Forecast for

South Beloit IL

Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  • This Afternoon

    This Afternoon: A chance of flurries before 3pm, then snow, mainly after 4pm.  High near 16. Southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 16 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 10pm, then isolated snow showers after midnight.  Low around -2. Wind chill values as low as -25. Blustery, with a west southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 40 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: -2 °F

    Snow then
    Isolated Snow
    Showers and
    Blustery

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 4. Wind chill values as low as -25. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 4 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around -3. Wind chill values as low as -14. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: -3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 17. West wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 17 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight.  Mostly cloudy, with a low around 9. Chance of precipitation is 60%.

    Low: 9 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before noon.  Mostly cloudy, with a high near 24.

    High: 24 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 14.

    High: 14 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of flurries before 3pm, then snow, mainly after 4pm. High near 16. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 10pm, then isolated snow showers after midnight. Low around -2. Wind chill values as low as -25. Blustery, with a west southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
M.L.King Day
Mostly sunny and cold, with a high near 4. Wind chill values as low as -25. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Monday Night
Partly cloudy, with a low around -3. Wind chill values as low as -14. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 17. West wind 5 to 10 mph becoming south southwest in the afternoon.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 9. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 4.
Thursday
Mostly sunny, with a high near 14.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Partly sunny, with a high near 14.
Friday Night
Partly cloudy, with a low around -6.
Saturday
Partly sunny and cold, with a high near 5.
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ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W
2:21 pm CST Jan 18, 2026
2pm CST Jan 18, 2026-6pm CST Jan 24, 2026
 
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Additional Resources

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