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Delong, IL Weather Forecast
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Delong Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT |
 |  | |  | |  |  |  |  | | | |
| Chance of T-Storm | Thunderstorms | Chance of T-Storm | Showers | Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy |
| Lo: 69°FLo: 21°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Hi: 65°FHi: 18°C Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C Lo: 50°FLo: 10°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C |
| POP: 70% | POP: 70% | POP: 50% | POP: 70% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 757 PM CDT Sat Sep 19 2026 
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Issued: 608 PM CDT Sat Sep 19 2026
Key Messages
- Overnight Rain & Thunderstorms: Showers and thunderstorms will build across northern Illinois tonight, mainly along and north of Interstate 80. Heavy rainfall over 1 inch carries a low chance (20% or less) across central Illinois, with rain tapering off by Sunday morning.
- Sunday Afternoon Storms: A few stronger thunderstorms may redevelop south of Interstate 72 late Sunday afternoon. Localized damaging winds and marginal hail will be the primary threats.
- Cooler & Mostly Dry Next Week...