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Review of the June 10 and 11, 2026 Derecho and QLCS

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Rain

55°F

13°C

Humidity	94%
Wind Speed	Calm
Barometer	29.62 in
Dewpoint	54°F (12°C)
Visibility	5.00 mi
Last update	17 Jun 7:45 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles SSW Rockdale WI

Today
High: 67 °F
Showers
Tonight
Low: 54 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 72 °F
Partly Sunny
then Slight
Chance
Showers
Thursday Night
Low: 52 °F
Mostly Clear
Juneteenth
High: 74 °F
Sunny
Friday Night
Low: 54 °F
Mostly Clear
Saturday
High: 78 °F
Mostly Sunny
Saturday Night
Low: 57 °F
Partly Cloudy
then Slight
Chance
Showers
Sunday
High: 73 °F
Showers
Likely

Detailed Forecast

Today

Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 67. Southwest wind 5 to 10 mph becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 54. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

Thursday

A 10 percent chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 72. Northwest wind around 15 mph.

Thursday Night

Mostly clear, with a low around 52. West wind 5 to 10 mph.

Juneteenth

Sunny, with a high near 74. Northwest wind 5 to 15 mph.

Friday Night

Mostly clear, with a low around 54. West wind around 5 mph becoming calm in the evening.

Saturday

Mostly sunny, with a high near 78. West wind 5 to 10 mph.

Saturday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 57. West wind around 5 mph becoming calm in the evening.

Sunday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

Sunday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 54. Chance of precipitation is 50%.

Monday

Mostly sunny, with a high near 75.

Monday Night

Partly cloudy, with a low around 53.

Tuesday

Mostly sunny, with a high near 77.