Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

N/A

Humidity	NA
Wind Speed	NA
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	* Not a current observation *

More Information:

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

Extended Forecast for

2 Miles S Shirland IL

Heat Advisory July 26, 12:00pm until July 26, 08:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 90 °F
Patchy Fog
then Mostly
Sunny
Tonight
Low: 73 °F
Partly Cloudy
then Chance
T-storms
Monday
High: 90 °F
Chance
T-storms
Monday Night
Low: 70 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 61 °F
Mostly Clear
Wednesday
High: 83 °F
Sunny
Wednesday Night
Low: 60 °F
Mostly Clear
Thursday
High: 86 °F
Mostly Sunny

Detailed Forecast

Today

Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 90. Heat index values as high as 101. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

Tonight

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph becoming south southeast after midnight.

Monday

A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, then gradually becoming sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 15 mph becoming northwest in the morning. Winds could gust 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 70. West northwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.

Tuesday

Sunny, with a high near 84. 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 83.

Wednesday Night

Mostly clear, with a low around 60.

Thursday

Mostly sunny, with a high near 86.

Thursday Night

Mostly cloudy, with a low around 63.