Spring Valley, WI Weather & Growing Conditions
Tonight
53°F
Light Rain
Rain and patchy fog. Mostly cloudy, with a low around 53. East southeast wind around 5 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 |
|---|---|---|---|---|
| Tonight | 53°F | Light Rain | 5 mph ESE | 88% |
| Wednesday | 56°F | Light Rain | 5 to 10 mph SSE | 83% |
| Wednesday Night | 44°F | Light Rain | 10 mph WNW | 90% |
| Thursday | 48°F | Light Rain Likely | 10 to 15 mph N | 57% |
| Thursday Night | 34°F | Mostly Cloudy | 5 to 10 mph NNE | 2% |
| Friday | 46°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 28°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph WSW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph W | 8% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph WNW | 14% |
| Sunday Night | 35°F | Partly Cloudy | 5 mph SW | 2% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph WNW | 1% |
| Tuesday | 54°F | Sunny | 5 to 10 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Spring Valley, WI
Last spring frost
May 6
First fall frost
Oct 2
Growing season
148 days
Hardiness zone
4b
Explore more for Spring Valley, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Baldwin, Wi (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.