Sheridan, IL Weather & Growing Conditions
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind 0 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 0 to 10 mph SSW | 1% |
| Tonight | 68°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 23% |
| Wednesday | 80°F | Showers And Thunderstorms Likely | 0 to 5 mph WSW | 66% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 0 to 5 mph NNW | 88% |
| Thursday | 80°F | Chance Showers And Thunderstorms | 0 to 5 mph ESE | 62% |
| Thursday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 23% |
| Friday | 83°F | Mostly Sunny | 0 mph | 6% |
| Friday Night | 64°F | Mostly Clear | 0 mph | 9% |
| Saturday | 85°F | Mostly Sunny | 0 to 5 mph SSW | 11% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 15% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 32% |
| Monday | 86°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 32% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 10 mph WSW | 39% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sheridan, IL
Last spring frost
Apr 27
First fall frost
Oct 17
Growing season
171 days
Hardiness zone
5b
Explore more for Sheridan, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Marseilles Lock, Il (14 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.