National Weather Service United States Department of Commerce

Scattered showers and thunderstorms along a cold front passing through central IL today will taper off from west to east, ending by afternoon. Cooler and dry conditions will develop behind this cold front. Expect highs to range from around 51 in Galesburg to 68 in Olney today, then lows from 35 to 40 tonight. Highs will be mainly in the 50s the next few days.
Line graphs are hard. But, we wanted to illustrate the regional probability of sub-freezing temperatures as we get into this weekend and early next week. Currently, the best chance of a freeze is late Monday night into Tuesday morning.