Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

86°F

30°C

Humidity	79%
Wind Speed	Calm
Barometer	29.89 in
Dewpoint	79°F (26°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	26 Jul 2:45 pm CDT

More Information:

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

Extended Forecast for

Milton WI

Heat Advisory July 26, 03:30pm until July 26, 09:00pm

Click here for hazard details and duration

...

Heat Advisory July 26, 03:30pm until July 26, 09:00pm
NOW until 9:00pm Sun
Heat Advisory
Tonight
Low: 73 °F
Slight Chance
T-storms then
Chance
T-storms
Monday
High: 89 °F
Showers
Likely then
Slight Chance
T-storms
Monday Night
Low: 65 °F
Slight Chance
T-storms then
Mostly Cloudy
Tuesday
High: 82 °F
Mostly Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 83 °F
Sunny
Wednesday Night
Low: 61 °F
Mostly Clear
Thursday
High: 85 °F
Sunny

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming southeast after midnight. Chance of precipitation is 50%.

Monday

Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 100. Southeast wind 10 to 15 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 65. West wind around 10 mph becoming north after midnight.

Tuesday

Mostly sunny, with a high near 82. North wind around 10 mph.

Tuesday Night

Mostly clear, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.

Wednesday

Sunny, with a high near 83. Calm wind becoming north around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 61. Calm wind.

Thursday

Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

Thursday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 65.