Heat Expands for Center of the Nation; Severe Thunderstorms for Plains and Upper Midwest

Dangerous heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest. Critical fire weather for portions of the Intermountain West. Risk for severe thunderstorms and flash flooding across the Upper Midwest/Great Lakes, Ohio Valley, and portions of the mid-Atlantic. Active monsoonal moisture fuels thunderstorms over the Southwest. Hurricane Fausto in the Pacific, should weaken Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

82°F

28°C

Humidity	94%
Wind Speed	SW 10 mph
Barometer	29.93 in
Dewpoint	81°F (27°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	26 Jul 11:45 am CDT

More Information:

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

Extended Forecast for

Caledonia IL

Heat Advisory until July 26, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until July 26, 08:00pm
NOW until 8:00pm Sun
Heat Advisory
This Afternoon
High: 89 °F
Partly Sunny
Tonight
Low: 73 °F
Chance
T-storms
Monday
High: 90 °F
Chance
T-storms
Monday Night
Low: 69 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 83 °F
Mostly Sunny
Tuesday Night
Low: 61 °F
Mostly Clear
Wednesday
High: 82 °F
Sunny
Wednesday Night
Low: 59 °F
Mostly Clear

Detailed Forecast

This Afternoon

Partly sunny, with a high near 89. Heat index values as high as 100. South southwest wind 5 to 10 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming west after midnight. Winds could gust as high as 10 mph.

Monday

A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 101. South southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Monday Night

A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 69. West wind around 10 mph becoming north after midnight. Winds could gust as high as 15 mph.

Tuesday

Mostly sunny, with a high near 83. North wind around 10 mph, with gusts as high as 15 mph.

Tuesday Night

Mostly clear, with a low around 61.

Wednesday

Sunny, with a high near 82.

Wednesday Night

Mostly clear, with a low around 59.

Thursday

Mostly sunny, with a high near 85.

Thursday Night

Mostly cloudy, with a low around 63.