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	30.06 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	2 Jul 7:45 am CDT

More Information:

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

Extended Forecast for

5 Miles SSW Whitewater WI

Extreme Heat Warning July 2, 08:32am until July 2, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 08:32am until July 2, 10:00pm
NOW until 10:00pm Thu
Extreme Heat Warning
Today
High: 91 °F
Chance
Showers then
Slight Chance
T-storms
Tonight
Low: 71 °F
Showers
Likely
Friday
High: 88 °F
Chance
T-storms then
Showers
Friday Night
Low: 69 °F
Showers
Independence Day
High: 83 °F
Chance
Showers then
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 chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 100. East wind 5 to 15 mph becoming southwest in the afternoon. Chance of precipitation is 50%.

Tonight

Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 88. Heat index values as high as 95. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers and possibly a thunderstorm. Low around 69. Southwest wind around 5 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

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 83. 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. Southeast wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

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 84.

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.