Cobden, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cobden, a village in Union County, Illinois.
This Afternoon
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. West southwest wind around 7 mph.
7-day forecast for Cobden
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 7 mph WSW | 1% |
| Tonight | 72°F | Mostly Clear | 3 mph SSW | 1% |
| Sunday | 96°F | Mostly Sunny | 6 mph WSW | 2% |
| Sunday Night | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 1 to 5 mph NNE | 25% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 mph NE | 49% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 7 mph NNE | 49% |
| Tuesday | 77°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 6 to 12 mph N | 43% |
| Tuesday Night | 58°F | Partly Cloudy | 5 to 12 mph N | 5% |
| Wednesday | 76°F | Mostly Sunny | 6 to 9 mph N | 1% |
| Wednesday Night | 56°F | Partly Cloudy | 2 to 8 mph N | 0% |
| Thursday | 76°F | Mostly Sunny | 3 to 7 mph N | 0% |
| Thursday Night | 58°F | Partly Cloudy | 2 to 6 mph NNE | 1% |
| Friday | 78°F | Partly Sunny then Slight Chance Rain Showers | 3 to 8 mph NNE | 15% |
| Friday Night | 59°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph NNE | 15% |
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 Sep 20, 2026.