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Hammond, IL Weather Forecast
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Hammond Weather Forecast
| THIS AFTERNOON | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  |  | |  | | |  | |  |
| Sunny | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Mostly Cloudy |
| Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Hi: 85°FHi: 29°C Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C Lo: 69°FLo: 21°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 70°FHi: 21°C Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C Lo: 55°FLo: 13°C |
| POP: 40% | POP: 20% | POP: 50% | POP: 50% | POP: 50% | POP: 60% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 142 PM CDT Thu Sep 17 2026 
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Issued: 237 PM CDT Thu Sep 17 2026
Key Messages
- High heat and humidity will continue into early this evening over portions of central and southeast IL. A Heat Advisory remains in effect until 7 PM south of a Springfield to Robinson line, where afternoon heat indices will peak near 105 degrees.
- A boundary slowly moving south this afternoon will be the focus of showers and storms into early this evening. Severe weather is not expected but locally heavy rainfall is possible due to potential training of the storms over the same areas. ...