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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

66°F

19°C

Humidity	88%
Wind Speed	SW 7 mph
Barometer	29.33 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	17 Jun 6:45 pm CDT

More Information:

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

Extended Forecast for

Sharon WI

Tornado Watch June 17, 07:38pm until June 17, 09:00pm

Severe T-storm Warning June 17, 07:38pm until June 17, 08:45pm

Click here for hazard details and duration

...

Tornado Watch June 17, 07:38pm until June 17, 09:00pm
Severe T-storm Warning June 17, 07:38pm until June 17, 08:45pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 56 °F
Scattered
T-storms then
Isolated
Showers
Thursday
High: 72 °F
Decreasing
Clouds
Thursday Night
Low: 52 °F
Slight Chance
Showers then
Mostly Clear
Juneteenth
High: 74 °F
Sunny
Friday Night
Low: 55 °F
Mostly Clear
Saturday
High: 77 °F
Sunny
Saturday Night
Low: 57 °F
Partly Cloudy
then Slight
Chance
Showers
Sunday
High: 72 °F
Showers
Likely

Detailed Forecast

Tonight

Scattered showers and thunderstorms before 1am, then isolated showers between 1am and 3am. Increasing clouds, with a low around 56. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 40%.

Thursday

Cloudy, then gradually becoming mostly sunny, with a high near 72. Northwest wind 10 to 15 mph.

Thursday Night

A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 52. West wind 5 to 10 mph.

Juneteenth

Sunny, with a high near 74. Northwest wind 5 to 10 mph.

Friday Night

Mostly clear, with a low around 55. West wind around 5 mph becoming calm in the evening.

Saturday

Sunny, with a high near 77. West wind 5 to 10 mph.

Saturday Night

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

Sunday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. East wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday Night

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

Monday

Mostly sunny, with a high near 73.

Monday Night

Partly cloudy, with a low around 52.

Tuesday

Mostly sunny, with a high near 77.

Tuesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.

Wednesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.