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

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

41°F

5°C

Humidity 87%
Wind Speed E 17 G 23 mph
Barometer 29.97 in
Dewpoint 37°F (3°C)
Visibility 6.00 mi
Wind Chill33°F (1°C)
Last update 18 Nov 11:45 am CST
Extended Forecast for

4 Miles SE Shirland IL

  • This Afternoon

    This Afternoon: A 30 percent chance of rain, mainly before 1pm. Cloudy, with a high near 41. East wind around 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Chance Rain

  • Tonight

    Tonight: A slight chance of drizzle before 9pm. Cloudy, with a low around 35. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Slight Chance
    Drizzle then
    Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 10 mph.

    High: 45 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38. Calm wind becoming south around 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 55. South wind 5 to 10 mph becoming west in the afternoon.

    High: 55 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of rain, mainly before 1pm. Cloudy, with a high near 41. East wind around 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of drizzle before 9pm. Cloudy, with a low around 35. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Cloudy, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 10 mph.
Wednesday Night
Mostly cloudy, with a low around 38. Calm wind becoming south around 5 mph.
Thursday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 55. South wind 5 to 10 mph becoming west in the afternoon.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Shirland IL
 42.41°N 89.14°W
Last Update:
7:56 am CST Nov 18, 2025
Forecast Valid:
12pm CST Nov 18, 2025-6pm CST Nov 24, 2025
 
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