New Glarus, WI Weather & Growing Conditions
Tonight
60°F
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 10pm, then a chance of showers and thunderstorms between 10pm and midnight, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 60. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 10 to 15 mph E | 94% |
| Saturday | 75°F | Showers And Thunderstorms | 5 to 10 mph SE | 89% |
| Saturday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph NE | 78% |
| Sunday | 67°F | Chance Rain Showers | 10 to 15 mph NE | 49% |
| Sunday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 26% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 37% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Tuesday | 62°F | Chance Rain Showers then Partly Sunny | 10 to 15 mph NE | 32% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 6% |
| Wednesday Night | 50°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 7% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph NE | 3% |
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 Sep 19, 2026.