Vienna, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vienna, a city in Johnson County, Illinois.
This Afternoon
79°F
Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Partly sunny. High near 79, with temperatures falling to around 75 in the afternoon. South wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
7-day forecast for Vienna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Slight Chance Rain Showers | 10 mph S | 19% |
| Tonight | 56°F | Showers And Thunderstorms | 6 to 12 mph SSW | 99% |
| Wednesday | 69°F | Partly Sunny | 3 to 9 mph SW | 7% |
| Wednesday Night | 43°F | Partly Cloudy | 2 mph SW | 0% |
| Thursday | 70°F | Sunny | 0 to 6 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 2 mph NW | 4% |
| Friday | 63°F | Partly Sunny | 2 to 8 mph NNW | 3% |
| Friday Night | 39°F | Mostly Cloudy | 1 to 5 mph NNW | 1% |
| Saturday | 59°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 1 mph N | 1% |
| Sunday | 63°F | Sunny | 0 to 5 mph NW | 5% |
| Sunday Night | 34°F | Mostly Clear | 2 mph NW | 5% |
| Monday | 65°F | Sunny | 1 to 6 mph W | 1% |
| Monday Night | 37°F | Mostly Clear | 2 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Vienna (37.414, -88.887). Updated through the day.
Growing snapshot for Vienna
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
189 days
Hardiness zone
7a
More local growing data for Vienna: nearby ZIP 62995 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dixon Springs Agric Ctr, Il (11.7 mi from Vienna). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.