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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

28°F

-2°C

Humidity 93%
Wind Speed Calm
Barometer 30.31 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Apr 5:45 am CDT
Extended Forecast for

3 Miles NNW Afton WI

  • Today

    Today: Widespread frost before 9am. Otherwise, sunny, with a high near 54. Light south wind increasing to 10 to 15 mph in the morning.

    High: 54 °F

    Frost then
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. South wind 10 to 15 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. West wind 10 to 15 mph.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. West wind around 5 mph becoming northeast after midnight.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Southeast wind around 10 mph.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 78 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 59. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers and
    Breezy

  • Friday

    Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

Today
Widespread frost before 9am. Otherwise, sunny, with a high near 54. Light south wind increasing to 10 to 15 mph in the morning.
Tonight
Mostly cloudy, with a low around 43. South wind 10 to 15 mph.
Tuesday
Mostly sunny, with a high near 73. West wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 46. West wind around 5 mph becoming northeast after midnight.
Wednesday
Sunny, with a high near 73. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 55. Southeast wind around 10 mph.
Thursday
Partly sunny, with a high near 78. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 59. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Afton WI
 42.74°N 89.12°W (Elev. 948 ft)
Last Update:
6:16 am CDT Apr 20, 2026
Forecast Valid:
7am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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