Cobden, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cobden, a village in Union County, Illinois.
Tonight
56°F
Showers And Thunderstorms
Showers and thunderstorms before 2am. Mostly cloudy. Low around 56, with temperatures rising to around 58 overnight. South wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
7-day forecast for Cobden
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Showers And Thunderstorms | 7 to 14 mph S | 96% |
| Wednesday | 67°F | Partly Sunny | 5 to 9 mph WSW | 6% |
| Wednesday Night | 44°F | Mostly Clear | 3 mph SW | 0% |
| Thursday | 67°F | Sunny | 2 to 7 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 2 mph W | 5% |
| Friday | 60°F | Partly Sunny | 3 to 9 mph NNW | 2% |
| Friday Night | 40°F | Partly Cloudy | 2 to 6 mph NNW | 1% |
| Saturday | 57°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 61°F | Sunny | 1 to 6 mph WNW | 5% |
| Sunday Night | 36°F | Mostly Clear | 3 mph NW | 5% |
| Monday | 64°F | Sunny | 1 to 7 mph WSW | 2% |
| Monday Night | 39°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 68°F | Sunny | 2 to 6 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Cobden (37.533, -89.254). Updated through the day.
Growing snapshot for Cobden
Last spring frost
Apr 8
First fall frost
Oct 29
Growing season
203 days
Hardiness zone
7a
More local growing data for Cobden: nearby ZIP 62920 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Anna 2 Nne, Il (5 mi from Cobden). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.