Nashville, IL Weather & Growing Conditions
Today
97°F
Mostly Sunny
Mostly sunny, with a high near 97. Heat index values as high as 101. Southwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Mostly Sunny | 7 mph SW | 2% |
| Tonight | 72°F | Partly Cloudy | 5 mph S | 3% |
| Sunday | 94°F | Slight Chance Rain Showers then Mostly Sunny | 2 to 6 mph W | 18% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph N | 51% |
| Monday | 81°F | Showers And Thunderstorms Likely | 6 to 10 mph NE | 64% |
| Monday Night | 59°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 6 to 12 mph NE | 64% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 8 to 13 mph N | 30% |
| Tuesday Night | 54°F | Partly Cloudy | 5 to 13 mph N | 10% |
| Wednesday | 75°F | Mostly Sunny | 6 to 10 mph N | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 9 mph N | 1% |
| Thursday | 76°F | Mostly Sunny | 3 to 8 mph N | 2% |
| Thursday Night | 56°F | Partly Cloudy | 2 to 8 mph NE | 3% |
| Friday | 78°F | Mostly Sunny | 3 to 8 mph NE | 3% |
| Friday Night | 56°F | Partly Cloudy | 2 to 6 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Nashville, IL
Last spring frost
Apr 7
First fall frost
Oct 26
Growing season
201 days
Hardiness zone
6b
Explore more for Nashville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Nashville 1 E, Il (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.