National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Fog

56°F

13°C

Humidity 99%
Wind Speed N 3 mph
Barometer 30.33 in
Dewpoint 55°F (13°C)
Visibility 0.25 mi
Last update 18 Sep 7:15 am CDT
Extended Forecast for

Lake Delton WI

Flood Watch September 19, 01:00am until September 19, 01:00pm
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Showers likely, mainly after 1pm. Areas of fog before 9am. Otherwise, cloudy, with a high near 67. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Chance
    Showers and
    Areas Fog
    then Showers
    Likely

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 55. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 55 °F

    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 4pm, then a chance of showers after 4pm. High near 66. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 65. Northeast wind 10 to 15 mph.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 45. Northeast wind 10 to 15 mph.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers. Mostly cloudy, with a high near 59. Northeast wind 10 to 15 mph.

    High: 59 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 42. Northeast wind around 10 mph.

    Low: 42 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

Today
Showers likely, mainly after 1pm. Areas of fog before 9am. Otherwise, cloudy, with a high near 67. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 55. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 4pm, then a chance of showers after 4pm. High near 66. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 65. Northeast wind 10 to 15 mph.
Sunday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 45. Northeast wind 10 to 15 mph.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 59. Northeast wind 10 to 15 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 42. Northeast wind around 10 mph.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Delton WI
 43.58°N 89.79°W (Elev. 991 ft)
Last Update:
6:41 am CDT Sep 18, 2026
Forecast Valid:
7am CDT Sep 18, 2026-6pm CDT Sep 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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