Summit Weather Forecast
- 42
- 42
Dense Fog
- 57
- 71
Rain Showers
- 38
- 60
Slight Chance Rain Showers
- 47
- 59
Mostly Sunny
- 49
- 69
Partly Sunny
- 44
- 67
Rain Showers
Today 5 Mar Central Cook
Cloudy. A chance of Showers in the morning and early in the afternoon. Widespread dense fog in the morning. Areas of fog in the Afternoon, some may be dense. Near steady temperature around 40. North Winds 5 to 10 Mph. Chance of precipitation 30 percent.
Tonight 5 Mar Central Cook
Cloudy. Areas of fog in the Evening, then widespread fog after midnight. Near steady temperature in the lower 40s. East Winds around 5 Mph.
Summit Temperature Statistics
March Temperature
Chicago, Chicago Midway Airport (2.5 miles)
Lowest 1 March, 2026
26.1 °FAverage March
31.5 °FHighest 2 March, 2026
41 °F
Climate (2021–Present)
Chicago, Chicago Midway Airport (2.5 miles)
Average Low 2021–2026
46.8 °FAverage 2021–2026
54.4 °FAverage High 2021–2026
62 °F