High pressure fades as the next system approaches

DECATUR, Ill. (WAND) – High pressure is still in control today, but our next weather maker is en route. Expect mostly sunny skies with highs in the upper 60s. Tonight will be clear with lows in the mid to low 40s, but clouds will increase overnight as the system approaches.

Tomorrow starts cloudy with a few showers possible as early as late morning, mainly for the I-74 corridor. Most showers should hold off until the late afternoon and evening, with the heaviest showers remaining northeast along the I-74 corridor. Behind this system, much colder air moves in. Along with the cooldown, cool air blowing over the relatively warmer Great Lakes may allow for lake-enhanced clouds and lingering spotty drizzle through Thursday.