Tester School, IL Weather Forecast
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Tester School Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
| Partly Cloudy | Partly Sunny | Mostly Cloudy | Chance of Showers | Chance of Showers | Showers | Chance of Showers | Chance of Showers | Chance of Showers | Showers Likely | Chance of Showers | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Hi: 69°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 51°FLo: 11°C |
| POP: 30% | POP: 40% | POP: 60% | POP: 30% | POP: 50% | POP: 50% | POP: 60% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 128 AM CDT Fri Oct 30 2026 

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Instant definitions for any meteorological term.
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Issued: 1038 PM CDT Thu Oct 29 2026
Key Messages
- Above average temperatures will continue into early next week.
- Showers and a few thunderstorms are expected at times Friday through the weekend, mainly Friday morning and Saturday night/Sunday morning with plenty of dry time otherwise.
- Confidence is high in widespread, beneficial rainfall early to mid-next week.
Aviation
/00Z TAFS THROUGH 06Z SATURDAY/... Issued at 1034 PM CDT Thu Oct 29 2026
Mainly dry and VFR conditions are expected through the period. The only exception will be an in...
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