Rosemont Weather Forecast
- 15
- 29
Snow Likely
- 16
- 25
Slight Chance Snow
- 35
- 37
Rain
- 20
- 37
Slight Chance Snow
- 12
- 28
Chance Snow
- 2
- 19
Slight Chance Snow
Today 7 Dec Central Cook
Snow in the Morning, then a chance of snow Showers in the afternoon. Snow accumulation around an inch. Highs around 30. North Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation near 100 percent.
Tonight 7 Dec Central Cook
Mostly cloudy. A chance of snow Showers, mainly in the evening. Little or no additional snow accumulation. Lows around 15 in the Suburbs, but around 19 Downtown. Near steady temperature around 19. Northeast Winds 10 to 15 Mph, becoming east 5 to 10 Mph after midnight. Chance of precipitation 50 percent.
Rosemont Temperature Statistics
December Temperature
Chicago, Chicago-O'Hare International Airport (1.2 miles)
Lowest 4 December, 2025
7 °FAverage December
20.5 °FHighest 1 December, 2025
30 °F
Climate (2020–Present)
Chicago, Chicago-O'Hare International Airport (1.2 miles)
Average Low 2020–2025
45.5 °FAverage 2020–2025
53.5 °FAverage High 2020–2025
61.7 °F