Low pressure is moving across the area Thursday morning, bringing periods of showers, drizzle, and fog that are expected to last until around noon.

CHICAGO - Rain is moving into Chicagoland Wednesday evening and will be moderate to heavy at times. Showers and possibly a few storms will linger Wednesday night into early Thursday morning. Temperatures are expected to be rather steady tonight with lows ...

The Chicago area typically sees its first trace of snow Oct. 31, Roman said. The area's first measurable snow -- 0.1 of an inch or more -- usually comes Nov. 18, Roman said, and the area's first average snow of one inch or more typically occurs Dec. 7.

Rain chances will increase as the afternoon arrives. Rounds of rain will be in the forecast from Sunday through at least Tuesday morning. During that duration, 1 to inches" of rain will be possible in Chicago and points south and west. For Northwest Indiana, 1 to 2 inches of rainfall accumulation is looking likely.

Chicago's weather sees clouds clearing for sun with mid-50s temperatures, dropping to 30s overnight, and rain return expected by Wednesday.

Potential Tropical Cyclone 19 formed in the Caribbean on Wednesday afternoon and is expected to strengthen into Tropical Storm Sara on Thursday. Hurricane Watches have been posted for parts of Honduras with Tropical Storm Watches in northern Nicaragua.