Cobden, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cobden, a village in Union County, Illinois.
Today
87°F
Sunny
Sunny, with a high near 87. East southeast wind around 3 mph.
7-day forecast for Cobden
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 3 mph ESE | 0% |
| Tonight | 65°F | Mostly Clear then Patchy Fog | 3 mph SE | 0% |
| Wednesday | 89°F | Patchy Fog then Sunny | 1 to 6 mph S | 0% |
| Wednesday Night | 70°F | Partly Cloudy | 2 to 6 mph SSE | 11% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 5 mph S | 38% |
| Thursday Night | 71°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph S | 56% |
| Friday | 87°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 60% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 5 mph SSW | 50% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 5 mph SW | 50% |
| Saturday Night | 71°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph S | 17% |
| Sunday | 90°F | Sunny | 3 to 9 mph SSW | 9% |
| Sunday Night | 74°F | Mostly Clear | 5 to 8 mph S | 7% |
| Monday | 93°F | Sunny | 7 to 12 mph SSW | 7% |
| Monday Night | 75°F | Mostly Clear | 10 mph SSW | 6% |
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 Aug 4, 2026.