Sherman, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sherman, a village in Sangamon County, Illinois.
Tonight
53°F
Rain
Rain before 2am, then a chance of rain showers between 2am and 5am. Mostly cloudy, with a low around 53. South southwest wind 12 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Sherman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Rain | 12 to 17 mph SSW | 95% |
| Wednesday | 60°F | Mostly Cloudy | 12 to 15 mph SW | 11% |
| Wednesday Night | 44°F | Mostly Cloudy | 9 mph SW | 1% |
| Thursday | 60°F | Mostly Sunny | 8 to 13 mph WSW | 4% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 3 to 7 mph NW | 22% |
| Friday | 55°F | Mostly Cloudy | 6 to 10 mph NNW | 12% |
| Friday Night | 36°F | Mostly Cloudy | 1 to 8 mph N | 4% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph NW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 60°F | Sunny | 2 to 8 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 2 to 6 mph W | 5% |
| Monday | 64°F | Sunny | 2 to 9 mph SW | 2% |
| Monday Night | 39°F | Mostly Clear | 3 to 7 mph WSW | 1% |
| Tuesday | 66°F | Sunny | 6 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Sherman (39.890, -89.604). Updated through the day.
Growing snapshot for Sherman
Last spring frost
Apr 14
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
6a
More local growing data for Sherman: nearby ZIP 62684 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Springfield Capital Ap, Il (6.8 mi from Sherman). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.