Lemont Weather Forecast
- 59
- 79
Mostly Cloudy
- 60
- 73
Chance Rain Showers
- 65
- 80
Chance Thunderstorms
- 74
- 88
Partly Sunny
- 76
- 93
Mostly Sunny
- 76
- 94
Mostly Sunny
Today 25 Jun Southern Cook
Mostly sunny late in the Morning, then becoming partly cloudy. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.
Tonight 25 Jun Southern Cook
Mostly cloudy. Lows in the upper 50s. Northeast Winds around 5 Mph.
Lemont Temperature Statistics
June Temperature
Lewis University Airport (6.8 miles)
Lowest 2 June, 2026
45.6 °FAverage June
69.4 °FHighest 6 June, 2026
90.6 °F
Climate (2021–2026)
Lewis University Airport (6.8 miles)
Average Low 2021–2026
43.5 °FAverage 2021–2026
52.4 °FAverage High 2021–2026
61.9 °F