Heavy Mountain Snow in the Northwest U.S.; Wintry Mix in the Northeast U.S.

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. overnight into Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

34°F

1°C

Humidity	100%
Wind Speed	W 9 mph
Barometer	29.78 in
Dewpoint	34°F (1°C)
Visibility	1.25 mi
Wind Chill	27°F (-3°C)
Last update	7 Jan 12:50 am CST

More Information:

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

Extended Forecast for

5 Miles SW Fort Atkinson WI

Overnight
Low: 31 °F
Areas
Freezing Fog
and Patchy
Fog
Wednesday
High: 42 °F
Areas
Freezing Fog
and Areas Fog
then Mostly
Sunny
Wednesday Night
Low: 35 °F
Partly Cloudy
Thursday
High: 45 °F
Slight Chance
Rain then
Rain
Thursday Night
Low: 35 °F
Rain then
Chance Rain
Friday
High: 41 °F
Chance Rain
then Partly
Sunny
Friday Night
Low: 30 °F
Slight Chance
Rain/Snow
then Chance
Rain/Snow
Saturday
High: 33 °F
Rain/Snow
Likely then
Snow Likely
Saturday Night
Low: 20 °F
Chance Snow

Detailed Forecast

Overnight

Patchy fog before 5am. Areas of freezing fog after 5am. Otherwise, mostly cloudy, with a low around 31. West wind around 5 mph.

Wednesday

Areas of fog between 10am and 11am. Areas of freezing fog before 10am. Otherwise, partly sunny, with a high near 42. West wind 5 to 10 mph becoming south in the afternoon.

Wednesday Night

Partly cloudy, with a low around 35. South wind 5 to 10 mph.

Thursday

Rain, mainly after noon. High near 45. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain, mainly before midnight. Low around 35. South wind around 10 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

A 30 percent chance of rain before noon. Partly sunny, with a high near 41. Northwest wind 5 to 10 mph.

Friday Night

A chance of rain and snow, mainly after midnight. Mostly cloudy, with a low around 30. Northeast wind around 5 mph. Chance of precipitation is 50%.

Saturday

Snow likely, possibly mixed with rain, becoming all snow after noon. Mostly cloudy, with a high near 33. North wind 5 to 15 mph becoming west in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 20.

Sunday

Mostly sunny, with a high near 30.

Sunday Night

Mostly clear, with a low around 22.

Monday

Mostly sunny, with a high near 38.

Monday Night

Partly cloudy, with a low around 25.

Tuesday

Mostly cloudy, with a high near 35.