Emerald, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Emerald, a community in St. Croix County, Wisconsin.
Tonight
53°F
Rain Showers
Rain showers and patchy fog before 1am, then patchy fog and showers and thunderstorms likely. Cloudy, with a low around 53. East southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Emerald
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Rain Showers | 15 mph ESE | 86% |
| Saturday | 62°F | Chance Rain Showers then Patchy Fog | 10 to 15 mph ENE | 36% |
| Saturday Night | 52°F | Mostly Cloudy | 5 to 10 mph NE | 12% |
| Sunday | 68°F | Mostly Sunny | 10 to 15 mph NE | 1% |
| Sunday Night | 45°F | Mostly Cloudy | 10 mph ENE | 2% |
| Monday | 63°F | Mostly Cloudy | 5 to 10 mph E | 4% |
| Monday Night | 41°F | Mostly Cloudy | 5 mph E | 4% |
| Tuesday | 63°F | Mostly Sunny | 5 mph E | 3% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph ESE | 1% |
| Wednesday | 66°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 47°F | Partly Cloudy | 0 to 5 mph SSE | 7% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph SSE | 11% |
| Thursday Night | 49°F | Partly Cloudy | 0 mph | 11% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph ESE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Emerald (45.087, -92.249). Updated through the day.
Growing snapshot for Emerald
Last spring frost
May 6
First fall frost
Oct 2
Growing season
148 days
Hardiness zone
4b
More local growing data for Emerald: nearby ZIP 54013 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Baldwin, Wi (11.5 mi from Emerald). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.