National Weather Service Forecast for: Cottage Grove, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: Mon, Jun-08-2026 2:37pm CDT
Cottage Grove
 
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday

Tuesday: Patchy Fog then Partly Sunny
Patchy Fog then Partly Sunny
Wednesday

Wednesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Thursday

Thursday: Showers And Thunderstorms
Showers And T-Storms
Friday

Friday: Sunny
Sunny
Saturday

Saturday: Slight Chance Rain Showers then Chance Showers And Thunderstorms
Slight Chance Rain Showers then Chance Showers And T-Storms
Sunday

Sunday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
 
Hi 81 °F Hi 85 °F Hi 90 °F Hi 84 °F Hi 80 °F Hi 81 °F Hi 76 °F  
 
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms
Tuesday
Night
Tuesday Night: Partly Cloudy then Slight Chance Showers And Thunderstorms
Partly Cloudy then Slight Chance Showers And T-Storms
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
Thursday
Night
Thursday Night: Showers And Thunderstorms then Chance Showers And Thunderstorms
Showers And T-Storms then Chance Showers And T-Storms
Friday
Night
Friday Night: Mostly Clear then Slight Chance Rain Showers
Mostly Clear then Slight Chance Rain Showers
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday
Night
Sunday Night: Slight Chance Rain Showers
Slight Chance Rain Showers
 
Lo 67 °F Lo 67 °F Lo 66 °F Lo 57 °F Lo 59 °F Lo 56 °F Lo 53 °F  

 

This Afternoon
 
A chance of showers and thunderstorms before 5pm, then showers and thunderstorms likely. Mostly cloudy. High near 81, with temperatures falling to around 76 in the afternoon. Southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
 
Showers and thunderstorms before midnight, then patchy fog and showers and thunderstorms between midnight and 1am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind 0 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tuesday
 
Patchy fog and a slight chance of rain showers before 9am. Partly sunny, with a high near 85. Northwest wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night
 
A slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 67. Southeast wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday
 
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. South wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
 
A chance of rain showers before 1pm, then showers and thunderstorms. Mostly sunny, with a high near 84. South wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
 
Showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 57. West wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
 
Sunny, with a high near 80.
Friday Night
 
A slight chance of rain showers after 1am. Mostly clear, with a low around 59. Chance of precipitation is 20%.
Saturday
 
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Sunny, with a high near 81. Chance of precipitation is 30%.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Sunday
 
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Sunday Night
 
A slight chance of rain showers. Partly cloudy, with a low around 53. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Cottage Grove, WI.