Mount Sterling, IL Weather & Growing Conditions
This Afternoon
69°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy, with a high near 69. South wind around 21 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Light Rain | 21 mph S | 88% |
| Tonight | 52°F | Light Rain Likely | 10 to 17 mph S | 57% |
| Wednesday | 57°F | Chance Rain Showers then Mostly Cloudy | 13 to 17 mph SW | 12% |
| Wednesday Night | 44°F | Mostly Cloudy | 10 mph SW | 1% |
| Thursday | 58°F | Mostly Sunny | 9 to 14 mph W | 8% |
| Thursday Night | 43°F | Mostly Cloudy | 7 mph NW | 12% |
| Friday | 54°F | Mostly Cloudy | 9 mph N | 8% |
| Friday Night | 37°F | Mostly Cloudy | 1 to 6 mph N | 2% |
| Saturday | 53°F | Mostly Sunny | 3 mph NW | 1% |
| Saturday Night | 36°F | Mostly Clear | 3 mph W | 1% |
| Sunday | 59°F | Sunny | 3 to 8 mph W | 8% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 4% |
| Monday | 64°F | Sunny | 3 to 10 mph SW | 1% |
| Monday Night | 41°F | Mostly Clear | 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mount Sterling, IL
Last spring frost
Apr 18
First fall frost
Oct 15
Growing season
179 days
Hardiness zone
6a
Explore more for Mount Sterling, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Perry 6 Nw, Il (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.