New Glarus, WI Weather & Growing Conditions
Tonight
56°F
Light Rain
Rain. Cloudy, with a low around 56. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Light Rain | 10 to 15 mph S | 75% |
| Wednesday | 58°F | Slight Chance Light Rain | 15 mph SW | 22% |
| Wednesday Night | 45°F | Chance Light Rain | 15 mph SW | 32% |
| Thursday | 53°F | Light Rain Likely | 10 to 15 mph W | 57% |
| Thursday Night | 39°F | Mostly Cloudy | 10 mph N | 11% |
| Friday | 48°F | Partly Sunny | 5 to 10 mph N | 3% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph W | 5% |
| Sunday | 58°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 17% |
| Sunday Night | 35°F | Mostly Clear | 5 mph W | 5% |
| Monday | 59°F | Sunny | 5 to 15 mph SW | 1% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 1% |
| Tuesday | 60°F | Sunny | 5 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Glarus, WI
Last spring frost
Apr 27
First fall frost
Oct 14
Growing season
170 days
Hardiness zone
5a
Explore more for New Glarus, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Monroe Wwtp, Wi (15.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.