Flooding Threat Continues in Portions of Texas; Poor Air Quality in the Great Lakes through the Mid-Atlantic

Widespread life-threatening flash and urban flooding continues in south-central Texas, with considerable flooding impacts possible across central Texas. Wildfire smoke is impacting air quality across much of the Great Lakes region into southern New England and the Mid-Atlantic. Monsoonal thunderstorms may produce isolated to scattered flash flooding across the Southwest into the Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

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

NA

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

Rock County

Rest Of Tonight
Partly cloudy. A 20 percent chance of light showers early in the morning. Near steady temperature in the mid 70s. Southwest winds 5 to 10 mph.
Saturday
Warm and humid. Partly sunny. A 20 percent chance of light showers in the morning. Highs in the upper 80s. Northwest winds 10 to 15 mph.
Saturday Night
Cooler. Partly cloudy. Areas of smoke in the late evening and overnight. Lows in the lower 60s. Northeast winds up to 10 mph.
Sunday
Mostly sunny. Areas of smoke. Highs in the lower 80s. East winds up to 5 mph.
Sunday Night
Mostly clear. Lows in the lower 60s. South winds up to 10 mph.
Monday
Partly sunny. Chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 50 percent.
Monday Night
Partly cloudy. Showers likely and chance of thunderstorms through around midnight, then chance of showers and slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of precipitation 70 percent.
Tuesday
Sunny. Highs in the lower 80s.
Tuesday Night
Mostly clear. Cooler. Lows in the upper 50s.
Wednesday
Sunny. Highs in the upper 70s.
Wednesday Night
Mostly clear. Lows in the mid 50s.
Thursday
Sunny. Highs around 80.
Thursday Night
Partly cloudy. Lows around 60.
Friday
Partly sunny. A 20 percent chance of light showers in the afternoon. Highs in the lower 80s.



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131 AM CDT Sat Jul 18 2026
 
 

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