Grassy Lake Forest Preserve Weather Forecast
- 66
- 88
Chance Thunderstorms
- 65
- 84
Mostly Sunny
- 67
- 88
Mostly Sunny
- 68
- 89
Slight Chance Thunderstorms
- 74
- 92
Slight Chance Thunderstorms
- 72
- 92
Chance Thunderstorms
- 65
- 85
Chance Thunderstorms
Today 30 Jun Lake
Partly sunny. A slight chance of Showers and Thunderstorms early to mid afternoon. A chance of Showers and Thunderstorms late in the afternoon. Highs in the upper 80s Inland, but only in the mid 80s near the lake. Northwest Winds 5 to 10 Mph. Chance of precipitation 30 percent.
Tonight 30 Jun Lake
Decreasing Clouds. Isolated Showers early in the evening. Lows in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.
Grassy Lake Forest Preserve Temperature Statistics
June Temperature
Chicago / Wheeling, Pal-Waukee Airport (13.7 miles)
Lowest 1 June, 2025
42.7 °FAverage June
73 °FHighest 22 June, 2025
96.7 °F
Climate (2020–Present)
Chicago / Wheeling, Pal-Waukee Airport (13.7 miles)
Average Low 2020–2025
44.2 °FAverage 2020–2025
52.9 °FAverage High 2020–2025
61.5 °F