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

Hazardous Weather Outlook

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62° N Lon: 89.04° W Elev: 801 ft.

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

More Information:

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

Detailed forecast for

Rock County

Tonight

Partly cloudy. Lows in the upper 50s. South winds up to 5 mph.

Saturday

Partly sunny. Highs in the mid 80s. Southwest winds 5 to 10 mph.

Saturday Night

Partly cloudy through around midnight then becoming mostly cloudy. Lows in the upper 60s. Southwest winds up to 10 mph.

Sunday

Very warm and humid. Partly sunny. Highs around 90. Southwest winds 5 to 15 mph. Highest heat index readings 96 to 101 in the late morning and afternoon.

Sunday Night

Partly cloudy with a 40 percent chance of light showers and thunderstorms. Lows in the lower 70s. Southwest winds 5 to 10 mph. Highest heat index readings 95 to 97 in the evening.

Monday

Mostly sunny with a 30 percent chance of light showers and thunderstorms. Highs in the lower 90s.

Monday Night

Partly cloudy. Lows in the upper 60s.

Tuesday

Mostly sunny. Highs in the upper 80s.

Tuesday Night

Mostly clear. Lows in the mid 60s.

Wednesday

Sunny. Highs in the upper 80s.

Wednesday Night

Mostly clear. Lows in the mid 60s.

Thursday

Mostly sunny. Slight chance of light showers in the morning, then slight chance of light showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 20 percent.

Thursday Night

Partly cloudy with chance of light showers and slight chance of thunderstorms. Lows in the mid 60s. Chance of precipitation 30 percent.

Friday

Mostly sunny. Slight chance of light showers in the morning, then chance of light showers and slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.