Blue River, WI Weather & Growing Conditions
This Afternoon
68°F
Rain Showers
Rain showers. Cloudy. High near 68, with temperatures falling to around 66 in the afternoon. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Rain Showers | 14 mph S | 88% |
| Tonight | 53°F | Showers And Thunderstorms | 10 mph S | 90% |
| Wednesday | 57°F | Rain Showers Likely | 8 to 14 mph S | 69% |
| Wednesday Night | 44°F | Rain Showers | 10 to 14 mph SW | 75% |
| Thursday | 53°F | Rain Showers | 10 mph W | 79% |
| Thursday Night | 38°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 10 mph N | 19% |
| Friday | 50°F | Partly Sunny | 3 to 9 mph N | 4% |
| Friday Night | 30°F | Partly Cloudy | 1 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph W | 6% |
| Sunday | 59°F | Mostly Sunny then Slight Chance Rain Showers | 2 to 8 mph W | 17% |
| Sunday Night | 34°F | Mostly Clear | 3 mph SW | 5% |
| Monday | 61°F | Mostly Sunny | 2 to 12 mph SW | 1% |
| Monday Night | 37°F | Mostly Clear | 2 to 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Blue River, WI
Last spring frost
May 3
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
5a
Explore more for Blue River, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Boscobel Ap, Wi (7.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.