Vienna, IL Weather & Growing Conditions
Today
87°F
Sunny
Sunny. High near 87, with temperatures falling to around 85 in the afternoon. Northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 2 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph ENE | 0% |
| Wednesday | 89°F | Sunny | 1 mph SW | 0% |
| Wednesday Night | 68°F | Mostly Clear | 0 mph | 0% |
| Thursday | 89°F | Mostly Sunny | 1 to 5 mph SSW | 14% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 2 mph S | 47% |
| Friday | 88°F | Chance Showers And Thunderstorms | 1 to 5 mph SSW | 47% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 2 mph WNW | 41% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph WSW | 33% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SSW | 23% |
| Sunday | 90°F | Mostly Sunny | 1 to 6 mph SSW | 11% |
| Sunday Night | 71°F | Mostly Clear | 0 to 3 mph SW | 7% |
| Monday | 91°F | Sunny | 2 to 7 mph SSW | 4% |
| Monday Night | 73°F | Mostly Clear | 1 to 5 mph SSW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Vienna, IL
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
189 days
Hardiness zone
7a
Explore more for Vienna, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Dixon Springs Agric Ctr, Il (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.