| National Weather Service Forecast for:
Cottage Grove, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
||||||||||||||||||||||||||||||||||||||||
| Updated: Wed, Sep-30-2026 1:21am CDT | ||||||||||||||||||||||||||||||||||||||||
| Cottage Grove | ||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||
| Overnight |
Rain showers likely before 4am, then showers and thunderstorms likely. Cloudy, with a low around 61. Southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Showers and thunderstorms. Mostly cloudy, with a high near 70. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. |
| Wednesday Night |
Rain showers. Cloudy, with a low around 62. Southwest wind 0 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday |
Rain showers. Cloudy, with a high near 68. Northwest wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible. |
| Thursday Night |
A slight chance of rain showers between 7pm and 1am. Mostly cloudy, with a low around 47. North wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Friday |
Mostly sunny, with a high near 64. North wind 5 to 10 mph. |
| Friday Night |
Mostly clear, with a low around 40. North wind 0 to 5 mph. |
| Saturday |
Mostly sunny, with a high near 65. Southeast wind 0 to 5 mph. |
| Saturday Night |
Partly cloudy, with a low around 46. |
| Sunday |
Mostly sunny, with a high near 64. |
| Sunday Night |
Mostly clear, with a low around 38. |
| Monday |
Sunny, with a high near 60. |
| Monday Night |
Mostly clear, with a low around 40. |
| Tuesday |
Sunny, with a high near 61. |
Forecast from NOAA-NWS for Cottage Grove, WI.