Blue River, WI Weather & Growing Conditions
Today
79°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between noon and 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 79, with temperatures falling to around 73 in the afternoon. West wind 6 to 9 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 6 to 9 mph W | 30% |
| Tonight | 62°F | Chance Showers And Thunderstorms | 2 to 7 mph NW | 64% |
| Wednesday | 76°F | Slight Chance Rain Showers then Partly Sunny | 5 mph NW | 23% |
| Wednesday Night | 54°F | Partly Cloudy | 0 to 3 mph W | 6% |
| Thursday | 80°F | Sunny | 2 mph S | 3% |
| Thursday Night | 58°F | Mostly Clear | 2 mph S | 0% |
| Friday | 82°F | Sunny | 1 to 7 mph S | 4% |
| Friday Night | 63°F | Mostly Clear | 2 to 7 mph S | 10% |
| Saturday | 83°F | Mostly Sunny | 3 to 8 mph SW | 10% |
| Saturday Night | 67°F | Partly Cloudy then Chance Showers And Thunderstorms | 3 to 7 mph SW | 31% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 9 mph W | 31% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 2 to 7 mph SE | 47% |
| Monday | 83°F | Chance Rain Showers | 2 to 7 mph S | 47% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph N | 36% |
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 Aug 4, 2026.