Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

73°F

23°C

Humidity	78%
Wind Speed	Calm
Barometer	30.05 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	2 Jul 6:45 am CDT

More Information:

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

Extended Forecast for

4 Miles WNW Clinton WI

Extreme Heat Warning July 2, 07:38am until July 2, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 07:38am until July 2, 10:00pm
NOW until 10:00pm Thu
Extreme Heat Warning
Today
High: 92 °F
Chance
Showers then
Mostly Sunny
Tonight
Low: 71 °F
Chance
T-storms then
Showers
Likely
Friday
High: 88 °F
Showers
Friday Night
Low: 70 °F
Showers
Independence Day
High: 84 °F
Showers
Saturday Night
Low: 65 °F
Showers
Likely
Sunday
High: 83 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 62 °F
Partly Cloudy

Detailed Forecast

Today

A 50 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny and hot, with a high near 92. Heat index values as high as 101. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Tonight

A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 88. Heat index values as high as 96. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers and possibly a thunderstorm. Low around 70. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Independence Day

Showers and possibly a thunderstorm. High near 84. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Southwest wind 5 to 10 mph becoming northeast in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Northwest wind 5 to 10 mph.

Sunday Night

Partly cloudy, with a low around 62. North wind 5 to 10 mph becoming light in the evening.

Monday

Mostly sunny, with a high near 83.

Monday Night

Partly cloudy, with a low around 62.

Tuesday

Mostly sunny, with a high near 86.

Tuesday Night

Partly cloudy, with a low around 64.