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

Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Mostly Cloudy

85°F

29°C

Humidity 70%
Wind Speed S 13 mph
Barometer 29.83 in (1009.4 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 29 Jun 8:53 pm CDT
Extended Forecast for

Cottage Grove WI

Extreme Heat Warning June 29, 09:29pm until July 1, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 29, 09:29pm until July 1, 07:00pm

    NOW until 7:00pm Wed

    Extreme Heat Warning

  • Tonight

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 92. Heat index values as high as 103. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. Southwest wind around 10 mph.

    Low: 74 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms before 7am. Sunny and hot, with a high near 92. Heat index values as high as 101. Southwest wind 10 to 15 mph.

    High: 92 °F

    Slight Chance
    T-storms then
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Southwest wind around 10 mph.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 90. Southwest wind 10 to 15 mph.

    High: 90 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 77. South wind 10 to 15 mph.
Tuesday
Mostly sunny and hot, with a high near 92. Heat index values as high as 103. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. Southwest wind around 10 mph.
Wednesday
A 10 percent chance of showers and thunderstorms before 7am. Sunny and hot, with a high near 92. Heat index values as high as 101. Southwest wind 10 to 15 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Southwest wind around 10 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 90. Southwest wind 10 to 15 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Independence Day
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cottage Grove WI
 43.09°N 89.19°W (Elev. 919 ft)
Last Update:
8:57 pm CDT Jun 29, 2026
Forecast Valid:
9pm CDT Jun 29, 2026-6pm CDT Jul 6, 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