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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

28°F

-2°C

Humidity 69%
Wind Speed NW 3 mph
Barometer 30.09 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 14 Mar 12:15 am CDT
Extended Forecast for

Darien WI

Winter Storm Watch March 15, 04:00pm until March 16, 07:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. Northwest wind 5 to 10 mph.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow between noon and 3pm. Cloudy, with a high near 39. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 39 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A slight chance of snow between 10pm and midnight, then a chance of rain. Cloudy, with a low around 31. Breezy, with an east wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.

    Low: 31 °F

    Slight Chance
    Snow then
    Chance Rain
    and Breezy

  • Sunday

    Sunday: Rain, with thunderstorms also possible after 4pm. High near 57. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °F

    Breezy. Rain
    Likely then
    Rain

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all snow after 1am. The snow could be heavy at times. Some thunder is also possible. Widespread blowing snow, mainly after 3am. Low around 18. Windy, with a north wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 18 °F

    Rain/Snow and
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Widespread blowing snow, mainly before 1pm. Cloudy, with a high near 21. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 21 °F

    Snow Likely
    and Blowing
    Snow

  • Monday Night

    Monday Night: Cloudy during the early evening, then gradual clearing, with a low around 3. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.

    Low: 3 °F

    Mostly Cloudy
    and Windy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 21. West wind around 10 mph.

    High: 21 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. Northwest wind 5 to 10 mph.
Saturday
A slight chance of snow between noon and 3pm. Cloudy, with a high near 39. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 20%.
Saturday Night
A slight chance of snow between 10pm and midnight, then a chance of rain. Cloudy, with a low around 31. Breezy, with an east wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Sunday
Rain, with thunderstorms also possible after 4pm. High near 57. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Snow, possibly mixed with rain, becoming all snow after 1am. The snow could be heavy at times. Some thunder is also possible. Widespread blowing snow, mainly after 3am. Low around 18. Windy, with a north wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Monday
Snow likely, mainly before 1pm. Widespread blowing snow, mainly before 1pm. Cloudy, with a high near 21. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Cloudy during the early evening, then gradual clearing, with a low around 3. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.
Tuesday
Mostly sunny, with a high near 21. West wind around 10 mph.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 14.
Wednesday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Darien WI
 42.59°N 88.72°W (Elev. 945 ft)
Last Update:
11:57 pm CDT Mar 13, 2026
Forecast Valid:
12am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation