Harman US

Mount Sterling, WI Weather & Growing Conditions

Today
57°F
Chance Rain Showers then Mostly Cloudy
A chance of rain showers before 11am. Mostly cloudy. High near 57, with temperatures falling to around 52 in the afternoon. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 57°F Chance Rain Showers then Mostly Cloudy 14 mph SW 29%
Tonight 44°F Rain Showers Likely 10 to 14 mph W 65%
Thursday 53°F Chance Rain Showers then Cloudy 9 to 14 mph NW 43%
Thursday Night 36°F Mostly Cloudy 7 to 12 mph N 9%
Friday 48°F Mostly Sunny 3 to 8 mph N 0%
Friday Night 28°F Mostly Clear 2 mph N 0%
Saturday 51°F Sunny 0 to 6 mph W 0%
Saturday Night 33°F Mostly Clear 3 mph W 2%
Sunday 56°F Sunny 3 to 8 mph W 6%
Sunday Night 34°F Mostly Clear 3 mph SW 0%
Monday 61°F Mostly Sunny 2 to 9 mph SW 0%
Monday Night 39°F Mostly Clear 2 to 6 mph W 0%
Tuesday 60°F Sunny 5 mph NW 0%
Tuesday Night 38°F Partly Cloudy 2 mph NW 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Mount Sterling, WI

Last spring frost
May 3
First fall frost
Oct 7
Growing season
156 days
Hardiness zone
5a

Explore more for Mount Sterling, WI: full frost dates · planting calendar · Wisconsin frost dates

Climate data from the nearest NOAA station, Gays Mills, Wi (4.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.