Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Rockton IL
Winter Weather Advisory January 21, 01:42am until January 21, 08:00am
NOW until 8:00am Wed
Winter Weather Advisory
Overnight
Low: 19 °F
Heavy Snow
Wednesday
High: 24 °F
Slight Chance
Snow then
Snow Showers
LikelyWednesday Night
Low: 7 °F
Snow Showers
Likely and
Patchy
Blowing SnowThursday
High: 17 °F
Mostly Sunny
Thursday Night
Low: -13 °F
Partly Cloudy
Friday
High: -6 °F
Cold
Friday Night
Low: -14 °F
Partly Cloudy
Saturday
High: 1 °F
Cold
Detailed Forecast
Overnight
Snow, mainly before 5am. The snow could be heavy at times. Steady temperature around 19. Southeast wind around 5 mph becoming north northwest. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Wednesday
A chance of flurries with a slight chance of snow before 9am, then snow showers likely after 4pm. Mostly cloudy, with a high near 24. Northwest wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers likely, mainly before 10pm. Patchy blowing snow before 3am. Mostly cloudy, with a low around 7. Wind chill values as low as -7. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
Mostly sunny, with a high near 17. Wind chill values as low as -8. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around -13. Northwest wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny and cold, with a high near -6.
Friday Night
Partly cloudy, with a low around -14.
Saturday
Mostly cloudy and cold, with a high near 1.
Saturday Night
Mostly cloudy, with a low around -6.
Sunday
Partly sunny and cold, with a high near 9.
Sunday Night
Partly cloudy, with a low around -5.
Monday
Mostly sunny, with a high near 12.
Monday Night
Partly cloudy, with a low around 1.
Tuesday
Mostly sunny, with a high near 22.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Rockton IL
42.45°N 89.05°W
42.45°N 89.05°W
12:51 am CST Jan 21, 2026
1am CST Jan 21, 2026-6pm CST Jan 27, 2026
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