Columbia, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Columbia, a city in Monroe County, Illinois.
This Afternoon
97°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Sunny, with a high near 97. Heat index values as high as 106. Southeast wind around 2 mph. Chance of precipitation is 30%.
7-day forecast for Columbia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Chance Showers And Thunderstorms | 2 mph SE | 26% |
| Tonight | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph SE | 23% |
| Saturday | 98°F | Mostly Sunny | 3 to 7 mph SW | 6% |
| Saturday Night | 74°F | Partly Cloudy | 5 mph S | 1% |
| Sunday | 95°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 mph W | 16% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph N | 55% |
| Monday | 81°F | Showers And Thunderstorms Likely | 5 to 9 mph N | 68% |
| Monday Night | 61°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 6 to 9 mph N | 68% |
| Tuesday | 72°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph N | 23% |
| Tuesday Night | 55°F | Mostly Cloudy | 5 to 10 mph N | 6% |
| Wednesday | 75°F | Mostly Sunny | 8 mph N | 2% |
| Wednesday Night | 56°F | Partly Cloudy | 3 to 7 mph N | 2% |
| Thursday | 75°F | Mostly Sunny | 3 to 7 mph N | 3% |
| Thursday Night | 58°F | Partly Cloudy | 6 mph N | 3% |
Forecast source: National Weather Service (api.weather.gov) for Columbia (38.458, -90.216). Updated through the day.
Growing snapshot for Columbia
Last spring frost
Apr 6
First fall frost
Oct 27
Growing season
203 days
Hardiness zone
7a
More local growing data for Columbia: nearby ZIP 62236 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cahokia, Il (9.2 mi from Columbia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.