Merrill, WI Weather & Growing Conditions
This Afternoon
62°F
Rain Showers Likely
Rain showers likely. Cloudy, with a high near 62. East northeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Rain Showers Likely | 7 mph ENE | 56% |
| Tonight | 49°F | Chance Rain Showers then Mostly Cloudy | 2 to 7 mph NE | 38% |
| Sunday | 66°F | Mostly Sunny | 6 to 12 mph NE | 0% |
| Sunday Night | 41°F | Mostly Cloudy | 5 to 8 mph NE | 0% |
| Monday | 63°F | Mostly Cloudy | 5 to 8 mph ENE | 0% |
| Monday Night | 34°F | Mostly Cloudy | 6 mph ENE | 0% |
| Tuesday | 64°F | Patchy Frost then Mostly Sunny | 3 to 8 mph ENE | 2% |
| Tuesday Night | 39°F | Mostly Clear then Patchy Fog | 5 mph E | 1% |
| Wednesday | 67°F | Sunny | 2 to 7 mph E | 1% |
| Wednesday Night | 42°F | Partly Cloudy then Patchy Fog | 1 to 5 mph E | 1% |
| Thursday | 69°F | Patchy Fog | 0 to 3 mph ESE | 15% |
| Thursday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 2 mph ENE | 15% |
| Friday | 73°F | Partly Sunny | 2 mph ESE | 5% |
| Friday Night | 47°F | Partly Cloudy | 1 mph E | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Merrill, WI
Last spring frost
May 11
First fall frost
Sep 30
Growing season
139 days
Hardiness zone
4b
Explore more for Merrill, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Merrill, Wi (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.