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Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Mostly Cloudy
73°F
23°C
| Humidity | 89% |
| Wind Speed | S 3 mph |
| Barometer | 29.95 in |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Last update | 2 Sep 3:55 am CDT |
Extended Forecast for
2 Miles SE Shirland IL
Heat Advisory September 2, 12:00pm until September 2, 09:00pm
Today

High: 92 °F
Mostly Sunny
Tonight

Low: 72 °F
Slight Chance
T-stormsThursday

High: 87 °F
Chance
T-stormsThursday Night
Low: 71 °F
Partly Cloudy
then Chance
T-stormsFriday

High: 87 °F
Chance
T-stormsFriday Night
Low: 69 °F
Slight Chance
T-storms then
Chance
T-stormsSaturday

High: 85 °F
Chance
T-stormsSaturday Night

Low: 66 °F
Partly Cloudy
Sunday

High: 84 °F
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 92. Heat index values as high as 101. South southwest wind 5 to 15 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 72. South wind around 5 mph.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming northeast around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm after midnight.
Friday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the morning. Winds could gust as high as 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 84.
Sunday Night
A chance of showers after 1am. Partly cloudy, with a low around 63.
Labor Day
A chance of showers. Partly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 61.
Tuesday
Partly sunny, with a high near 81.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SE Shirland IL
42.43°N 89.17°W
42.43°N 89.17°W
2:25 am CDT Sep 2, 2026
4am CDT Sep 2, 2026-6pm CDT Sep 8, 2026



