Lake Forest Weather Forecast
- 61
- 78
Mostly Cloudy
- 62
- 71
Slight Chance Thunderstorms
- 66
- 76
Rain Showers
- 67
- 82
Chance Thunderstorms
- 71
- 89
Chance Thunderstorms
- 68
- 88
Chance Thunderstorms
- 65
- 87
Chance Rain Showers
Today 6 Jun Lake
Partly cloudy late in the Morning, then becoming mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s Inland, but only in the mid 70s near the lake. North Winds around 5 Mph, becoming northeast in the afternoon. Chance of precipitation 20 percent.
Tonight 6 Jun Lake
Partly cloudy. Lows in the lower 60s. East Winds around 5 Mph.
Lake Forest Temperature Statistics
June Temperature
Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)
Lowest 3 June, 2026
48.7 °FAverage June
65.7 °FHighest 4 June, 2026
86 °F
Climate (2021–Present)
Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)
Average Low 2021–2026
44 °FAverage 2021–2026
52.9 °FAverage High 2021–2026
61.6 °F