Herbert, IL Weather Forecast
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Herbert Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Sunny | Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers |
| Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 941 AM CDT Wed Oct 21 2026 

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Issued: 620 AM CDT Wed Oct 21 2026
Key Messages
- Dense fog may develop again early this morning within about 25 miles of Lake Michigan, with highest chances in the northern Chicago suburbs. Any dense fog that does form will quickly burn off by mid-morning.
- The dry and unseasonably mild weather will continue through the upcoming weekend.
Discussion
... Issued at 157 AM CDT Wed Oct 21 2026
GOES nighttime microphysics RGB shows fog developing across Lake County IL into extreme southeast WI. Given the fog is developing a couple hours earl...
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