Scales Mound, IL Weather & Growing Conditions
This Afternoon
56°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy. High near 56, with temperatures falling to around 54 in the afternoon. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Slight Chance Rain Showers | 10 to 15 mph SW | 19% |
| Tonight | 46°F | Chance Rain Showers | 10 to 15 mph SW | 32% |
| Thursday | 50°F | Chance Rain Showers | 10 mph W | 38% |
| Thursday Night | 36°F | Mostly Cloudy | 10 mph N | 14% |
| Friday | 47°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Friday Night | 28°F | Mostly Clear | 0 to 5 mph N | 0% |
| Saturday | 50°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 57°F | Sunny | 5 mph W | 2% |
| Sunday Night | 35°F | Clear | 0 to 5 mph W | 0% |
| Monday | 61°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 60°F | Sunny | 0 to 5 mph NW | 1% |
| Tuesday Night | 39°F | Partly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Scales Mound, IL
Last spring frost
Apr 26
First fall frost
Oct 15
Growing season
170 days
Hardiness zone
5a
Explore more for Scales Mound, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Galena, Il (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.