Cold Temperatures and Some Snow

A strong cold front and low pressure system will press from the Central U.S. through the East over the next couple of days. The impressive cold front will allow a cold air mass to settle in east of the Rockies and numerous record low temperatures are likely the next few days, especially Wednesday morning. A streak of snow is also expected from the central Plains to northern New England. Read More >

Hazardous Weather Conditions

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Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

41°F

5°C

Humidity	45%
Wind Speed	W 7 mph
Barometer	30.05 in
Dewpoint	21°F (-6°C)
Visibility	10.00 mi
Wind Chill	36°F (2°C)
Last update	20 Apr 6:45 pm CDT

More Information:

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

Extended Forecast for

Harvard IL

Freeze Warning April 21, 12:00am until April 21, 09:00am

Click here for hazard details and duration

Freeze Warning

Tonight

Scattered
Rain/Snow
then Areas
Frost
Low: 28 °F
Wednesday

Rain/Snow
Likely
High: 43 °F
Wednesday
Night

Scattered
Rain/Snow
then Frost
Low: 26 °F
Thursday

Frost then
Sunny
High: 56 °F
Thursday
Night

Partly Cloudy
Low: 36 °F
Friday

Areas Frost
then Slight
Chance
Showers
High: 57 °F
Friday
Night

Chance
Showers
Low: 42 °F
Saturday

Chance
Showers
High: 59 °F
Saturday
Night

Partly Cloudy
Low: 34 °F

Detailed Forecast

Tonight

Scattered rain and snow showers before 7pm, then scattered snow showers between 7pm and 11pm. Areas of frost after midnight. Otherwise, mostly cloudy, with a low around 28. North wind around 5 mph becoming calm. Chance of precipitation is 30%.

Wednesday

Snow showers likely, possibly mixed with rain, mainly between 1pm and 4pm. Some thunder is also possible. Mostly cloudy, with a high near 43. Light northwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday Night

Scattered rain and snow showers, mainly before 7pm. Widespread frost after 10pm. Otherwise, partly cloudy, with a low around 26. West wind 5 to 10 mph. Chance of precipitation is 30%.

Thursday

Widespread frost before 9am. Otherwise, sunny, with a high near 56. West wind 5 to 15 mph, with gusts as high as 20 mph.

Thursday Night

Partly cloudy, with a low around 36. Southwest wind 5 to 10 mph.

Friday

A 20 percent chance of showers after 1pm. Areas of frost before 7am. Otherwise, mostly cloudy, with a high near 57.

Friday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 42.

Saturday

A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 59.

Saturday Night

Partly cloudy, with a low around 34.