Columbus, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Columbus, IL in one place.
Mostly sunny, with a high near 94. Heat index values as high as 106. Southwest wind around 12 mph.
Local Weather Overview
This forecast page for Columbus, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 10, 2026 6:32 AM CDT.
The active forecast window currently covers Aug 11 to Aug 16, 2026 for Columbus, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 11 to Aug 16, 2026
- Latest sync
- Aug 10, 2026 6:32 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Columbus
Tuesday looks like the warmest upcoming period in Columbus at 94 degrees F.
Thursday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Friday Night at about 10 to 14 mph SE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 10, 2026 6:32 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Southwest wind 6 to 9 mph. Chance of precipitation is 20%.
A chance of rain showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 80%.
Showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 80%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 11
|
Mostly Sunny
|
94°F |
12 mph
SW
|
|
Tuesday Night
Aug 11
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
76°F |
6 to 9 mph
SW
|
|
Wednesday
Aug 12
|
Chance Showers And Thunderstorms
|
91°F |
8 mph
S
|
|
Wednesday Night
Aug 12
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
72°F |
6 mph
E
|
|
Thursday
Aug 13
|
Showers And Thunderstorms Likely
|
84°F |
5 to 9 mph
E
|
|
Thursday Night
Aug 13
|
Showers And Thunderstorms
|
69°F |
8 to 12 mph
NE
|
|
Friday
Aug 14
|
Showers And Thunderstorms
|
83°F |
12 mph
E
|
|
Friday Night
Aug 14
|
Chance Showers And Thunderstorms
|
70°F |
10 to 14 mph
SE
|
|
Saturday
Aug 15
|
Chance Showers And Thunderstorms
|
86°F |
10 mph
S
|
|
Saturday Night
Aug 15
|
Slight Chance Showers And Thunderstorms
|
71°F |
6 to 9 mph
SW
|
|
Sunday
Aug 16
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
83°F |
8 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Columbus.