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Glenn, IL Weather Forecast
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Glenn Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY |
 |  | | | | | | | |  |  | |
| Clear | Sunny | Mostly Clear | Sunny | Clear | Clear | Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C | Lo: 30°FLo: -1°C | Hi: 65°FHi: 18°C | Lo: 35°FLo: 2°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C Lo: 39°FLo: 4°C | Hi: 60°FHi: 16°C Lo: 35°FLo: 2°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM CST Fri Nov 06 2026 
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Issued: 422 PM CST Fri Nov 6 2026
Key Messages
- A Frost Advisory and Freeze Warning remain in effect for tonight. Low temperatures Saturday morning will reach the 30s, followed by highs only in the 50s. A Freeze Watch also remains in effect Saturday night, as the growing season likely will come to an end Sunday morning.
- Temperatures trend above normal Monday through Wednesday with highs reaching the upper 60s to near 70 degrees.
- There is a 20-30% chance of sprinkles or light rain showers Wednesday evening into Wednesday night as a...