Heavy Rain in the Appalachians and Central Gulf Coast; Heat Continues in the West; Monitoring the Tropics

Heavy to excessive rainfall over the southern Appalachians and portions of the central Gulf Coast may bring areas of flooding today. Hot temperatures are in place through today across much of the western U.S. and New England. Tropical Storm Erin is forecast to become a Major Hurricane this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

81°F

27°C

Humidity 70%
Wind Speed SW 10 mph
Barometer 29.93 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 12 Aug 1:45 pm CDT
Extended Forecast for

2 Miles NNE Janesville WI

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Partly sunny, with a high near 81. West wind around 10 mph.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm.  Partly cloudy, with a low around 61. West wind around 5 mph becoming northwest after midnight.  Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. North wind around 5 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. North wind around 5 mph becoming calm.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Calm wind becoming east around 5 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. East wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 69. South wind around 5 mph.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 88.

    High: 88 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 81. West wind around 10 mph.
Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 61. West wind around 5 mph becoming northwest after midnight. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 79. North wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 59. North wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 78. Calm wind becoming east around 5 mph.
Thursday Night
Mostly clear, with a low around 60. East wind around 5 mph becoming calm.
Friday
Sunny, with a high near 83. Light southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. South wind around 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Janesville WI
 42.71°N 89°W (Elev. 892 ft)
1:00 pm CDT Aug 12, 2025
2pm CDT Aug 12, 2025-6pm CDT Aug 18, 2025
 
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