CHICAGO – Calm weather is expected for the weekend. Tonight will be clear and cool with lows in the upper 30s and 40s.

Plan for sunny skies Saturday with highs in the upper 50s. Slightly warmer air will build in for Sunday, with sunny skies and highs in the lower 60s.

A big warm-up is expected next week, with record heat possible by Tuesday. Monday will be nice with partly sunny skies and highs in the upper 60s. Tuesday will be windy and warm, with high temperatures likely to climb to near 80 degrees. Tuesday’s record high temperature is 78 degrees, set in 1999.

Most of Wednesday will be dry, with breezy conditions and highs back in the upper 70s to near 80 degrees. Showers will be possible Wednesday evening and overnight as a cold front approaches the area. This cold front will bring in colder air for Halloween.

Thursday will start with rain showers and temperatures in the 60s. Cooler air will build in during the day, with temperatures likely dropping into the 50s by noon and afternoon. Skies should dry out in the afternoon/evening for trick-or-treaters.