Mount Sterling, IL Weather & Growing Conditions
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. Southeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 7 mph SE | 14% |
| Saturday | 91°F | Partly Sunny | 5 to 8 mph SW | 10% |
| Saturday Night | 69°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SW | 34% |
| Sunday | 81°F | Rain Showers Likely | 2 to 10 mph NW | 71% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 71% |
| Monday | 67°F | Showers And Thunderstorms Likely | 12 mph NE | 71% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 44% |
| Tuesday | 65°F | Chance Rain Showers | 10 mph NE | 34% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 9 mph N | 4% |
| Wednesday | 68°F | Mostly Sunny | 7 mph N | 1% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 6 mph NE | 1% |
| Thursday | 69°F | Mostly Sunny | 6 mph NE | 5% |
| Thursday Night | 56°F | Partly Cloudy | 5 mph NE | 5% |
| Friday | 71°F | Mostly Sunny | 2 to 6 mph NE | 6% |
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 Sep 19, 2026.