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Columbus, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Columbus, a village in Adams County, Illinois.

Tonight
70°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 4am and 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West wind around 5 mph. Chance of precipitation is 30%.

7-day forecast for Columbus

WhenTempForecastWindPrecip
Tonight 70°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 5 mph W 25%
Sunday 79°F Showers And Thunderstorms Likely 3 to 9 mph N 62%
Sunday Night 61°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 8 to 12 mph NE 84%
Monday 67°F Showers And Thunderstorms 10 mph NE 84%
Monday Night 56°F Rain Showers Likely 9 mph NE 74%
Tuesday 64°F Slight Chance Rain Showers 10 mph NE 21%
Tuesday Night 51°F Mostly Cloudy 5 to 9 mph N 9%
Wednesday 67°F Partly Sunny 7 mph N 1%
Wednesday Night 53°F Partly Cloudy 2 to 6 mph NE 1%
Thursday 70°F Partly Sunny 5 mph NE 2%
Thursday Night 58°F Mostly Cloudy then Slight Chance Rain Showers 3 mph NE 15%
Friday 74°F Slight Chance Rain Showers 2 to 6 mph NE 16%
Friday Night 59°F Partly Cloudy 5 mph NE 9%
Saturday 76°F Mostly Sunny 5 mph E 7%

Forecast source: National Weather Service (api.weather.gov) for Columbus (39.986, -91.145). Updated through the day.

Growing snapshot for Columbus

Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6a

More local growing data for Columbus: nearby ZIP 62325 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Quincy Rgnl Ap, Il (7.7 mi from Columbus). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.