Springfield, Illinois – Warm, sunny days are taking hold across Central Illinois as temperatures surge into the upper 80s and low 90s by midweek, but the dry streak is likely to end with a round of storms heading into the weekend.
According to the National Weather Service in Lincoln, high pressure will dominate the region through Wednesday, keeping skies mostly clear and temperatures steadily rising—reaching up to 90°F in areas like Decatur and Bloomington by Wednesday afternoon. Lows tonight will stay mild in the low to mid-50s.
By Thursday, the pattern begins to shift. A 20% chance of isolated showers develops late in the day, with increasing storm potential Friday (50%) and Saturday (60%). Cities like Peoria, Champaign, and Danville should prepare for downpours, gusty winds, and lightning that could disrupt outdoor plans and weekend travel.
Drivers are advised to monitor changing road conditions and avoid flooded streets, while residents should secure outdoor items and ensure weather alerts are enabled on mobile devices.
More storms are possible into Saturday evening, but drier weather may return by Sunday. Additional watches or warnings could be issued as conditions evolve.