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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

73°F

23°C

Humidity 83%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 9 Jul 1:50 am CDT
Extended Forecast for

Roscoe IL

  • Overnight

    Overnight: Isolated showers and thunderstorms. Mostly cloudy, with a low around 71. South southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Isolated
    T-storms

  • Thursday

    Thursday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 81. West southwest wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 81 °F

    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms, mainly before 11pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 63. North northwest wind around 5 mph becoming east in the evening. Winds could gust as high as 10 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Scattered
    T-storms then
    Isolated
    T-storms and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, then becoming mostly cloudy during the afternoon, with a high near 81. East northeast wind around 5 mph, with gusts as high as 10 mph.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. East northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
Isolated showers and thunderstorms. Mostly cloudy, with a low around 71. South southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.
Thursday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 81. West southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Thursday Night
Scattered showers and thunderstorms, mainly before 11pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 63. North northwest wind around 5 mph becoming east in the evening. Winds could gust as high as 10 mph. Chance of precipitation is 50%.
Friday
Patchy fog before 8am. Otherwise, sunny, then becoming mostly cloudy during the afternoon, with a high near 81. East northeast wind around 5 mph, with gusts as high as 10 mph.
Friday Night
Partly cloudy, with a low around 61. East northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roscoe IL
 42.43°N 88.99°W
Last Update:
1:45 am CDT Jul 9, 2026
Forecast Valid:
2am CDT Jul 9, 2026-6pm CDT Jul 15, 2026
 
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