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Sumpter Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY | SUNDAY |
 |  |  |  |  |  |  | | |  |
| Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Sunny |
| Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 95°FHi: 35°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C |
| POP: 30% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 337 AM CDT Mon Sep 14 2026 
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Issued: 234 AM CDT Mon Sep 14 2026
Key Messages
- Near-term conditions remain dry and pleasant today, with increasing southeasterly winds gusting 15-25 mph this afternoon.
- Active weather returns Tuesday and Wednesday as a cold front stalls across central Illinois, bringing multiple rounds of showers and thunderstorms through the end of the week and weekend.
- Severe weather is possible both Tuesday and Wednesday, with localized heavy rainfall (1-2+ inches, particularly northwest of a Havana to Bloomington line).
- A strong north-to-sout...