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

77°F

25°C

Humidity	69%
Wind Speed	N 5 mph
Barometer	30.07 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	2 Jul 9:45 am CDT

More Information:

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

Extended Forecast for

3 Miles SW Fort Atkinson WI

Extreme Heat Warning July 2, 10:42am until July 2, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 10:42am until July 2, 10:00pm
NOW until 10:00pm Thu
Extreme Heat Warning
Today
High: 91 °F
Partly Sunny
then
Scattered
Showers
Tonight
Low: 70 °F
Showers
Likely
Friday
High: 86 °F
Showers
Friday Night
Low: 70 °F
Showers
Independence Day
High: 82 °F
Showers
Saturday Night
Low: 65 °F
Showers
Likely
Sunday
High: 82 °F
Slight Chance
Showers then
Slight Chance
T-storms
Sunday Night
Low: 62 °F
Partly Cloudy

Detailed Forecast

Today

Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 98. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%.

Tonight

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 4am, then scattered showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Friday

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 86. 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

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 70. West wind around 5 mph becoming calm in the evening. 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 82. Southeast wind around 5 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. South wind 5 to 10 mph becoming west 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 slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

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 63.

Tuesday

Mostly sunny, with a high near 85.

Tuesday Night

Partly cloudy, with a low around 65.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.