Mundelein Weather Forecast
- 67
- 78
Rain Showers
- 68
- 78
Rain Showers Likely
- 70
- 82
Rain Showers Likely
- 65
- 82
Chance Thunderstorms
- 61
- 77
Mostly Sunny
- 66
- 80
Chance Rain Showers
- 63
- 80
Chance Thunderstorms
Today 13 Aug Lake
Showers and a slight chance of Thunderstorms. Temperatures in the lower 70s. East Winds 5 to 10 Mph. Chance of precipitation 90 percent.
Tonight 13 Aug Lake
Mostly cloudy. Showers likely early in the evening. A slight chance of Thunderstorms. A chance of Showers in the late evening and overnight. Humid. Lows in the upper 60s. East Winds 5 to 10 Mph. Chance of precipitation 70 percent.
Mundelein Temperature Statistics
August Temperature
Chicago / Wheeling, Pal-Waukee Airport (10.6 miles)
Lowest 3 August, 2026
61.6 °FAverage August
74 °FHighest 7 August, 2026
87.7 °F
Climate (2021–2026)
Chicago / Wheeling, Pal-Waukee Airport (10.6 miles)
Average Low 2021–2026
44 °FAverage 2021–2026
52.8 °FAverage High 2021–2026
61.6 °F