Breezy, southerly winds building in behind a warm front overnight have set us up for a warm Wednesday. Today's highs will reach the low to mid 70s, about 5-10 degrees above normal for this time of year.
Changes in the forecast will begin tonight as a cold front approaches from the north. Showers and thunderstorms developing along the front will graze the northernmost counties in our viewing area. Most of us will stay dry into Thursday. An upper level shortwave pulling east Thursday night into Friday will help push the surface cold front through. A line of showers and thunderstorms developing along the front will slice through Central Illinois during this time frame.
Showers will linger behind the front into Friday, with much cooler air dropping highs into the mid to upper 50s Friday and Saturday. A large ridge of high pressure will start shifting east over the weekend, clearing skies out into early next week. Temperatures will gradually warm into the 70s by midweek.
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