Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy and Breezy

21°F

-6°C

Humidity	74%
Wind Speed	W 21 G 28 mph
Barometer	29.99 in
Dewpoint	14°F (-10°C)
Visibility	7.00 mi
Wind Chill	5°F (-15°C)
Last update	21 Jan 11:35 pm CST

More Information:

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

Extended Forecast for

5 Miles SSW Janesville WI

Extreme Cold Watch January 23, 01:00pm until January 24, 12:00pm

Extreme Cold Warning January 23, 12:00am until January 23, 01:00pm

Click here for hazard details and duration

Extreme Cold Watch

Extreme Cold Warning

Tonight
Low: 9 °F
Snow Showers
Thursday
High: 19 °F
Breezy.
Scattered
Flurries then
Isolated Snow
Showers
Thursday Night
Low: -16 °F
Scattered
Flurries
Friday
High: -6 °F
Cold
Friday Night
Low: -14 °F
Mostly Cloudy
Saturday
High: 3 °F
Mostly Cloudy
then Slight
Chance Snow
Saturday Night
Low: -3 °F
Chance Snow
Sunday
High: 11 °F
Chance Snow
Sunday Night
Low: -5 °F
Partly Cloudy

Detailed Forecast

Tonight

Snow showers, mainly before 2am, then scattered flurries after 3am. Low around 9. Wind chill values between zero and 5. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.

Thursday

Scattered flurries before 2pm, then isolated snow showers between 2pm and 4pm, then scattered flurries after 4pm. Partly sunny, with a high near 19. Wind chill values between -5 and 5. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

Thursday Night

Scattered flurries before 10pm. Partly cloudy, with a low around -16. Wind chill values between -25 and -35. Northwest wind around 15 mph, with gusts as high as 30 mph.

Friday

Sunny and cold, with a high near -6. Wind chill values between -25 and -35. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Friday Night

Mostly cloudy, with a low around -14. North wind around 5 mph.

Saturday

A 20 percent chance of snow after noon. Mostly cloudy and cold, with a high near 3. North wind around 5 mph.

Saturday Night

A 40 percent chance of snow. Mostly cloudy, with a low around -3. North wind around 5 mph.

Sunday

A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 11. Northwest wind 5 to 10 mph.

Sunday Night

Partly cloudy, with a low around -5.