| Includes the counties: Cook Includes the cities: Chicago Today... Mostly cloudy. Not as cold. Highs in the upper 30s. South winds 10 to 15 mph. Tonight... Partly cloudy. Lows in the mid 20s. South winds around 10 mph. Sunday... Partly sunny. Warmer. Highs in the mid 40s. Southwest winds 10 to 15 mph. Sunday Night... Mostly cloudy. A 40 percent chance of light rain showers or light snow showers after midnight. Lows in the lower 30s. Southwest winds 10 to 15 mph. Monday... Mostly cloudy. Chance of rain showers and snow showers in the morning...Then a slight chance of snow showers in the afternoon. Blustery. Highs in the upper 30s. West winds 15 to 25 mph. Gusts up to 30 mph in the afternoon. Chance of precipitation 30 percent. Monday Night... Partly cloudy. Lows in the upper 20s. Tuesday... Partly cloudy in the morning then clearing. Highs in the upper 30s. Tuesday Night... Mostly clear. Lows in the upper 20s. Wednesday... Mostly clear. Highs in the lower 40s. Lows around 30. Thursday... Mostly clear. Highs in the lower 40s. Lows around 30. Friday... Mostly clear. Highs in the lower 40s. Lows around 30. | 
