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Dewmaine, IL Weather Forecast
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Dewmaine Weather Forecast
| OVERNIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  |  | |  | | | | |  | |
| Clear | Sunny | Partly Cloudy | Showers | Showers | Mostly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C |
| POP: 70% | POP: 90% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 AM CDT Fri Oct 09 2026 
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Issued: 126 AM CDT Fri Oct 9 2026
Key Messages
- Well above normal temperatures can again be expected today with highs mostly in the upper 80s.
- As the remnants of Isaias move north through Alabama, then east of the PAH forecast area over the weekend, 50-100% chances of showers and some thunderstorms can be expected by Saturday afternoon into Saturday night, ending west to east late Saturday night into Sunday morning.
- Current forecast rainfall totals range from a quarter inch to one and one quarter inches, with the highest totals ac...