Weather World
City of Columbia, IllinoisColumbia, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Columbia, IL Weather Forecast
Columbia, IL Weather Forecast Date: 532 PM CDT Sun Sep 20 2026
The area/counties/county of: Monroe County Il, Jefferson County Mo.or toggle through each period.
Tonight... Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 60%.
Monday... Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the morning. Cooler with highs in the upper 70s. North winds around 5 mph. Chance of rain 40%.
Monday Night... Mostly cloudy. Lows around 60. Northeast winds around 5 mph.
Tuesday... Mostly cloudy. Highs in the mid 70s. Northeast winds 5 to 10 mph.
Tuesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. North winds 5 to 10 mph.
Wednesday... Partly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Thursday... Partly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Friday... Partly sunny. Highs in the upper 70s.
Friday Night... Mostly cloudy with a 20% chance of showers. Lows in the mid 50s. Highs in the upper 70s.
Saturday... Mostly cloudy with a 20% chance of showers. Lows in the mid 50s. Highs in the upper 70s.
Saturday Night... Mostly cloudy. Lows in the mid 50s.
POP = Probability of Precipitation
Columbia Radar Loop
Use the map search tool if you want to place a location marker on the radar map...