National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Thu, Aug-13-2026 5:51am CDT
Cottage Grove
 
Today

Today: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Friday

Friday: Chance Rain Showers
Chance Rain Showers
Saturday

Saturday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Sunday

Sunday: Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Chance Showers And T-Storms then Slight Chance Showers And T-Storms
Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Wednesday

Wednesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Hi 78 °F Hi 79 °F Hi 82 °F Hi 81 °F Hi 77 °F Hi 79 °F Hi 78 °F  
 
Tonight

Tonight: Chance Rain Showers then Mostly Cloudy
Chance Rain Showers then Mostly Cloudy
Friday
Night
Friday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Sunday
Night
Sunday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms then Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms then Chance Showers And T-Storms
 
Lo 63 °F Lo 64 °F Lo 68 °F Lo 62 °F Lo 59 °F Lo 62 °F Lo 61 °F  

Dense Fog Advisory issued August 13 at 5:03AM CDT until August 13 at 9:00AM CDT
Special Weather Statement issued August 13 at 4:17AM CDT
 

Today
 
Patchy fog before 9am, then a chance of rain showers between 11am and 1pm, then showers and thunderstorms likely. Cloudy, with a high near 78. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight
 
A chance of rain showers before 8pm. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday
 
A chance of rain showers after 7am. Mostly cloudy, with a high near 79. East wind 5 to 10 mph. Chance of precipitation is 30%.
Friday Night
 
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
 
Showers and thunderstorms likely before 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Northwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night
 
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 62. North wind 0 to 5 mph. Chance of precipitation is 20%.
Monday
 
Sunny, with a high near 77.
Monday Night
 
Mostly clear, with a low around 59.
Tuesday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
Tuesday Night
 
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 40%.
Wednesday
 
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 40%.
Wednesday Night
 
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.