West Union, IL Weather & Growing Conditions
Tonight
69°F
Mostly Cloudy
Mostly cloudy, with a low around 69. East wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Mostly Cloudy | 7 mph E | 10% |
| Saturday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph SSW | 28% |
| Saturday Night | 70°F | Mostly Cloudy | 7 mph SSE | 12% |
| Sunday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph W | 20% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 9 mph NNE | 44% |
| Monday | 78°F | Showers And Thunderstorms Likely | 12 mph NE | 59% |
| Monday Night | 58°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 9 to 13 mph NNE | 59% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 13 mph NNE | 41% |
| Tuesday Night | 55°F | Mostly Cloudy | 7 to 13 mph NNE | 13% |
| Wednesday | 72°F | Partly Sunny | 10 mph NNE | 5% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph N | 5% |
| Thursday | 74°F | Mostly Sunny | 5 to 9 mph N | 3% |
| Thursday Night | 56°F | Partly Cloudy | 5 to 8 mph NNE | 3% |
| Friday | 75°F | Mostly Sunny | 6 to 9 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Union, IL
Last spring frost
Apr 8
First fall frost
Oct 27
Growing season
201 days
Hardiness zone
6b
Explore more for West Union, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Farmersburg Tv-2, In (13.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.